horsepower weight top speed calculator Weight / Horsepower: 9. Vehicle Weight is the weight of the vehicle with no rider or cargo on it. Reducing timing reduces horsepower dramatically and limits the top speed, and it would also limit the top speed if the cars ran to 1,320 feet, so the predicted quarter-mile speeds for today's era are not that much faster than Kalitta's nearly 334-mph run from way back in 2003. To put this into perspective we will compare a Ferrari and a Ford Escort. S. This calculator uses the formula: HP = (MPH ÷ 234)³ × Weight The formula is: hp = weight / (ET / 5. Trap speed at end of 1/4 mi in m. 48 = 1. Weight HorsePower Maximum RPM Motor a Motor b Motor c EV Calculator. S. After all these losses I am left with 33. 92 and 0% humidity. This calculator will estimate the amount of horsepower a car is generating at the flywheel from the car's 1/4 mile time, trap speed and weight. One is the 1921 Oldsmobile from Beverly Hillbillies. Go Kart Gear Ratio Tool. using the figures supplied above: 19 x 6000 / 1056 / 2 = 53. With the triple 300XS outboards, the boat ran a top speed of 103 mph. com 0-60 mph Calculator for Cars. e. X Research source Example: To do 0. The amount that the top speed will be reduced by resistance depends on many factors such as the power of the motor, weight of the vehicle and rider, size and air pressure of the tires, incline degree that the vehicle is going up, and headwind. It is done over a measured distance of about 0. In the chart you can see the peak horsepower, the weight of the car, the power-to-weight ratio (horsepower divided by the weight), the number of seconds the car takes to accelerate from zero to 60 mph, and the The tip speed of the multi-blade fans used for air cushion pressure and thrust is limited to about 460 FPS or 314 MPH ! USE THIS CALCULATOR AT YOUR OWN RISK Over . . 5) , model year 1984, version for North America U. 9 mph (365. 7 second quarter at 86 mph. • 8" tires, 3000 RPM, 6:1 gear ratio, top speed is 23. 3333 ET = 1353 / MPH Weight Horsepower This calculator estimates your 60 foot, eighth and quarter mile elapsed times and trap speed when given the weight of the car and flywheel or wheel horsepower. ) -HP-Boat Weight-Speed The book states most boats with proper prop and properly tuned will receive 90-100 percent of the rated HP. For electric motors, power or horsepower can be calculated from the torque and speed. It runs to 60 mph in the mid-3s, according to Dodge. DragTimes App NEW: Download the DragTimes App in the iTunes store to We have found manufactures published weight to be unsuitable for these calculations. A car's top speed is affected by many things. 1 kg) of curb weight, leading to curious non sequiturs like rating Pontiac’s 3,300 lb (1,500 kg) Firebird at 325 hp (242 kW) while claiming 360 hp (269 kW) for the mostly The main Navigation tabs at top of each page are Metric - inputs in millimeters (mm) For Inch versions, directly under the main tab is a smaller 'Inch' tab for the Feet and Inch version. 4)^3 Find your Ideal Quicksilver Propeller in 5 steps or less. 1 inches. Note: This is a rough and quick estimate of engine horsepower. See my Free Android Drag Racing Calculator App in the Google Play Store MV claim 205bhp from its 998cc four (208 with race pipe), a dry weight of 186kg, a top speed ‘over 300kph’ (if you can hang on) to go with its oddball looks, twin pipes and £29,680 price. The tyre hight in percentage is the total amount of millimeters in percentage, that the tyre is high, in relation to the width of the tyre. The car ran a 15. 10 - 17. You need the speed expressed in meters per second, since the acceleration of gravity is also expressed in meters/second. Gross weight at take-off was approximately 9680 lbs. Maximum horsepower determines top speed, the point at which the police will impound your car. R/C Vehicle Speed Calculator. For those reasons, GM also had internal rules limiting all of their passenger cars except the Corvette to a maximum of one gross horsepower per 10 pounds (1 kW per 6. First of all speed of any vehicle does not depend only on its engine power or specifications. Top: Average weight and horsepower from 1975 to 2011 based on U. For example, you might want to compare riders with different heights at identical BMI values, meaning "adequately" changed body weights. Or, change input variables (engine RPM, axle gear ratio and tire height) to determine vehicle speed in each forward gear. Estimate of engine horsepower after a quarter mile run using the trap speed method. This is because in reality top speed is physically limited in one of two ways, either by being geared relatively low or by aerodynamic drag. 54 km/h at 3000 RPM. It supports pistons with positive or negative volume, head gasket, and a few other details to give an accurate compression ratio. The calculated propeller sizes are based on standard propeller designs; 2 blade = 30% blade area ratio 3 blade = 50% blade area ratio 4 blade = 69% blade area ratio The mill cranks out 181 horsepower and 151 pound-feet following an update made for the 2019 model year and pushes the roadster from 0 to 60 mph in just 6. It will graph the results when done. This calculator will find the horsepower required for a certain vehicle to reach their top speed (Vmax). 65 seconds, with a trap speed of 117 miles-per-hour. 04 m/s (90 kg bike + rider) to 0. This website may use cookies or similar technologies to personalize ads (interest-based advertising), to provide social media features and to analyze our traffic. (rounded to the nearest 10,000th) $100 Promotion. 1958-59 Corvette Horsepower. 92 and 0% humidity. Speed Kills MPG Unfortunately, it's true. Suzuki LTZ 400 Specs – Value, Weight, Oil and Top Speed | ATV Style Suzuki’s Z400 ATV, also known as the LTZ-400, is a high performance all-terrain vehicle in Suzuki’s popular Quadsport ATV lineup. <br> 17% of the power of going straight up with the same speed. How the Test Was Run. Doing a project where I'm calculating top speed of famous cars. 3/28/2021 11:08:27 PM Wallace Racing BACK to Calculators To figure the Horsepower required to run a top speed (like Bonneville), you'll need the Co-eficient drag (Cd) of the vehicle,weight,frontal area (sq/ft) This calculator estimates your top speed when horsepower is added. Formula Used: Speed = (5252 X Horsepower) / Torque (rpm); Calculation of Speed is made easier here. Choose which unit system of measurement you need from the drop-down menu; 2. You can check it with the relativistic kinetic energy calculator by filling the velocity field with the speed of light 299,792,458 m/s or 2. This calculator provides the flywheel horsepower from the elapsed time and weight of the vehicle. Enter a speed numerically and the required power will be calculated. 84. Calculator Ideas. Compression Calculator. Click the “Calculate” button, and the 1/4 Mile Calculator will return this information: 10. For most cars, this is around 55-60 mph. Your car's gas mileage decreases once it gets past its optimal speed. 44 mph . T. If you know your vehicle weight in pounds and the dyno horsepower, you can use this on-line calculator to guestimate the ¼-mile elapsed time (E. Your weight makes a big difference. 81 mph. Therefore HP = POWER (ft-lb per min) ÷ 33,000. Simply enter the four figures for your vehicle and see what you face horsepower-wise to meet your objectives. Drag Max RPM slider to adjust the range of the RPM and Speedometer Gauges. We'll assume the car has a frontal area of 21 square feet and a Cd of 0. 0 bar *Note: Based on SAE J1349 air conditions. Number of batteries Battery weight Charger weight Controller weight Motor weight Misc weight Weight added Total vehicle weight The Z06 reaches it's top speed of 198 mph in 5th gear at just over 6300 rpm, the rpm of it's peak power. 19 Created for and by Lotec owner Kurt Lotterschmid, this car was made for top speed and could reach a theoretical 400 kph, but the tires limit the amount to 380 kph. The car is horsepower limited and cannot reach that speed, but that doesn't affect the theoretical top speed of the given gear as it is a constant. Velocity is speed in the context of direction. 2-liter Hemi V-8, mounted beneath a new performance hood with a functional air intake. Given motor R. M. Engine RPM, or the speed at which the engine turns, can be calculated at any speed given the vehicle's tire size, axle ratio, and final transmission gear ratio. • Acceleration Calculator: Calculates ideal 1/4 mile elapsed time (E. . 35 drag, 25 ft/sq, 3900 lbs, 55 mph) on Wallace Racing Drag Calculator. The power produced by the motor depends on the speed of the motor and is. That means 1334. This model is powered with a supercharged, 1812cc, 4-stroke, 3-cylinder, 250 HP engine option. ) Click on the Calculate button to see what the top speed of that particular application would be. 0 to 62 mph (100 km/h) takes a neck-twisting 2. 00) and the tire diameter, ground to top of tire as mounted. We use your calculator ideas to create new and useful online calculators. Win $100 towards teaching supplies! We want to see your websites and blogs. Not bad for an ATV with Rider and Cargo Weight is the total weight of the the rider(s) and cargo. 44 mph. 173 mph. But then you have to rely on physics. Horsepower: 310: Top Speed (mph) 67: PWR - Dry Weight (HP/lbs)* 0. 01 m/s at 9 m/s on the flat (5 seconds in a 32 km/h (20 mph), 40-kilometre (25 mile) TT). M. 825) 3 The Trap-speed method This method uses the weight of the car and the speed at which the car completed the quarter-mile run. 1 HP is the equivalent of 33,000 ft/lbfs per minute. (Increases like this also mean increased fuel costs, but generally not too much to dissuade big-power enthusiasts. Scientific Calculator Simple Calculator. • 12" tires, 4400 RPM, tops speed is 52. Now, for an upcharge of about $31,500, you can get the same boat with 1,572-hp Caterpillars and gain 3 knots at the top end (35 knots)—a cost of $10,500 per knot. 095. P. Trap speed is the velocity or speed of a vehicle at the end of a run or race competition. Get accurate compression without the guesswork! Get your engine's optimal compression ratio and total displacement in no time flat! Just complete your engine setup, click calculate, and you’re on your way to maximum performance. To do so, enter in the peak wheel horsepower of the vehicle, and the vehicle weight including driver, in the form below. Specs include a 4-stroke liquid cooled 450cc engine, a seat height of 32. Total Weight of Car (with the driver included): 500 3. Not that creative on my part, do a web search for "horsepower estimator" and you'll find a lot of hits that based on 1/4 mile speed or time and weight, which is the approach I took, determine power given speed and distance from a standing start and weight of vehicle, although I simplified this assuming unlimited traction, and constant power. That is to say, if your vehicle weighs 3,000 pounds and has 300 horsepower, then starting at zero miles per hour, it should take 12. For instance in 91-93 3000GT VR4's the gear limited top speed is ~208 mph. Here the Vehicle power is 234 hp and Vehicle weight is 15000 pound. Adjust using real data after you get close. Calculate speed from Gear Ratios. 2) An engine producing 320 horsepower at 5,000 rpm is producing how much torque? Click on "Torque", enter the horsepower and rpm, click on "Calculate" and the answer is 336. Adjusting the slider gives the appearance of changing both at the same time. Average family cars have a top speed of 120 mph or so these days so let's have a look at the size of this force at that speed. Four Speed Manual Transmission 350 Horsepower L79 Engine: 3,451 lb. Multiply the torque by the engine speed, and then divide that number by 5252. STD standard day is 68ºF, 29. Divide the RPM value by the Speed value i. Speed - Gross Weight. 152. 07 Four Speed Manual Transmission 435 Hosepower L71 Engine: 3,626 lb. This will generate the horsepower needed to move a vehicle of that weight to that speed in the 1/4 mile " For more information see Technical or The Corral: THE Late Model Mustangs Web Site. Convert 10 hp to kW: P (kW) = 0. Shaft horsepower is to be the actual uncorrected engine horsepower less drive train losses. Lightweight and compact The BF2. 5MPH anybody post here 3 of the 4 options and Ill give you the 4th. . ) and trap speed based on average wheel horsepower, weight, number of shifts, tire height and gearing. 998e8 m/s in scientific notation. variable description elapsed time (ET) time to run the full length of the quarter mile weight total ready to run weight of vehicle including driver flywheel horsepower horsepower available at the flywheel … flywheel horsepower Drag Performance Calculator By AssassinRacing. p. Change Sprockets - Change Speed. 8. The car weighed 3,081 lb. 8% is good, I like to stay with 0. This calculation is used to match oversize tires with new ring and pinion gears to obtain the desired engine RPM at highway speed. 1/4 mile target 12. For example a truck may have over 500bhp but it can be easily out accelerated by a lightweight kit car with just 120bhp. 7) and see how much the top speed increases. Within 0. Wallace Racing - ET/MPH/HP Calculator Weight is as the car sits on the line: driver and gas in it. In physics, you can calculate power based on force and speed. Ford Mustang site featuring a large, friendly enthusaist community for the 1964-1/2 to 2020 Ford Mustang, Mustang GT, Mustang Cobra, Classic Mustang with message forums, classifieds, news, tech, a horsepower calculator, and the ability to post your own Mustang on our User's Rides section and upload your own pictures, sound, and video galleries. Power to Weight (hp/lb) 47. For example, if I have a 3500 lb car with 215 horsepower, I simply divide 3500 by 215 to get a weight to power ratio of 16. Speed - Solo Weight. You can use this quarter mile calculator to determine the terminal speed (trap speed) and quarter-mile elapsed time (ET) of a vehicle based on its weight and power. 15 mph (24 kph) is the max with 7 HP. with the c. The Z400 provides ample four-wheel fun A total of 42,860 horsepower (43,000 HP) should be installed to achieve a speed of 19 knots. To calculate horsepower, you need to consider the amount of weight involved, distance, and how long it takes for the vehicle to cover that distance. Speed is the rate of change in position of an object, regardless of direction of travel. To get correct gearing for your top speed runs use our Gearspeed Calculator . zero at 0% speed, and; normally at it's top at operating speed The sum of those forces can be multiplied by speed - this is the quantity known as "power". Our default is for a slow, safe junior kart. 533 hp. The P-51B tested was the P-51B-15, AAF No. Top Speed Tests Yield Impressive Results 2 2021 BMW Piston speed generally refers to the average or mean speed of the piston as it moves up and down in the cylinder bore during each crankshaft revolution. Horsepower: 100 Gross Weight: 1600 lbs Top Speed: 122 mph Empty Weight: 975 lbs Cruise Speed: 110 mph Fuel Capacity: 26 gal Stall Speed (dirty): 48 mph Range: 475 mi Takeoff Ground Roll: 735 ft Landing Ground Roll: 445 ft Over 50 ft obstacle: 1385 ft Rate Of Climb: 740 fpm Ceiling: 12,650 ft. Weight / Horsepower: 9. 2020 MV Agusta Brutale 1000 Serie Oro Converting horsepower to amps can be done in a few simple steps, or using this simple formula. Similarly, horsepower (hp) is usually in Kilowatts. The trend continued until the early 1980s (see Figure 1) and Figure 1. One HP is 18 KW @ 3300 RPM 25 HP @ 3300 RPM 24 BHP @ 3300 RPM Unladen Weight 1801. The example below uses 150 for BF. Once a value of shaft horsepower has been determined, various combinations of prime movers can be considered based on power produced, weight, fuel consumption, etc for installation in the ship. Thrust is simply a static measurement of pushing or pulling power, and higher thrust does not necessarily mean greater speed. 446 miles per minute. production figures. 677 squirrels can produce one horsepower! 4-stroke − high performance: 12. the 'race weight' was 3,231 lb. Milling Speed and Feed Calculator Determine the spindle speed (RPM) and feed rate (IPM) for a milling operation, as well as the cut time for a given cut length. It is impossible to calculate these values accuratly, this information should be used as a rough guide only. Enter the Weight and HP for ET and MPH, Then Press 'Enter' Key MPH = 234 * (HP / Weight) ^ . Keep in mind that you can never have enough horsepower. rpm = piston speed in fpm x 6 / stroke in inches Formulas for brake horsepower. Therefore, your quarter-mile elapsed time for a 500-pound car with 85 horsepower and a constant of 5. Go Kart Gear Ratio Speed Calculator (MPH). You can use a calculator like this one to calculate the difference in overall diameter from your stock wheel to the new one. (i. Then, this ratio is subtracted from 1. To use this horsepower calculator enter the mph trap speed at the 1/4 mile mark from one of your dragstrip ET slips. heres an example Planning Hull 100hp 2000lbs-----36. 68 pounds per hp, while the twin 400s (800 hp total) calculate to 1. Most of the web top speed calculators use engine (maximum rev), transmission (gear ratios) and tire (sizes) data to calculate a so called “theoretical maximum speed”. 65 seconds, with a trap speed of 117. At 12 foot, your boat can handle a meaningful weight capacity and has more convenient speed to travel short distances faster than a 10-foot jon boat. Enter Shift at RPM, select gear to shift to and hit Shift and Trace to run up through the gears recording shift point RPM and km/h - mph. Speeds and ranges in statute mph (sm)Empty weight and performance measured with fixed pitch propeller. In the U. Higher temperature, humidity or altitude will lower power output and decrease top speed. 1 lbs (817 kg) Gross Weight Limit Top Speed 81 mph (130 km/h) TRANSMISSION SPECS . , four blade constant speed propeller. Yes, you need a sprocket that will allow the engine to make its full horsepower. It weighs 350 pounds and has a top speed of 74MPH in stock condition. Time can be entered or solved for in units of secondes (s), minutes (min), hours (hr), or hours and minutes and seconds (hh:mm:ss). You just have to guess where yours falls. 283 small-block base single four-barrel version now making 230 horsepower, dual-quad versions were rated at 245 and 270 horsepower and the fuelie engines now made either 250 or 290 horsepower. Brushed motor have Given the average weight of a squirrel, and the top speed of a squirrel, I figured out that an average squirrel can generate . Horsepower: hp at: the wheels: the Crank: Drivetrain: Front Wheel Drive: Rear Wheel Drive: All Wheel Drive: Four Wheel Drive: Transmission: Manual: Modern Automatic (5 Speed+) Traditional Automatic (3 Speed) Guestimated Horsepower: 253hp The higher the gear ratio, the higher the top end speed; the lower the ratio, the stronger the acceleration (power). Because work equals force times distance, you can write the equation for power the following way, assuming that the force acts along the direction of travel: where s is the distance traveled. horsepower = rpm x torque / 5252. Try changing it from a non overdrive (1) to an overdrive (. TRY DIFFERENT THINGS Try it by changing the rpm lower and do it once again. Weight to power is one way to get a general idea of acceleration performance. 92 Mach. With our propeller finder, you’ll be able to narrow your search for the most ideal prop considerably in just four simple steps. 746 ⋅ P (hp) Example. Enter Here. A couple ways to estimate this: 1) use the Mercury Prop Slip Calculator, or 2) if you know the top speed of your boat, enter the RPMs, Pitch and Gear Ratio in the Boat Speed Calculator tool and vary the slip value until the estimated speed is correct. Acceleration simulator. I want to calculate the motor rating for an electric-bicycle having a laden weight of 150 kg and maximum speed of 25 km/h. Electrical horsepower to kilowatts. Since the piston actually comes to a complete stop at the top of the stroke (TDC) and at the bottom of the stroke (BDC), its speed and acceleration at any given point is always changing. The results are the circumference of the drive wheel/tire combo (in inches), gear ratio and the potential maximum speed (in MPH). 1 / 4 Mile ET Calculator. 5 seconds. 13 foot pounds. For example, if the wheel speed is 300 rpm, the example tire is moving at 0. Ring & pinion gear ratio Tire height (in. Its empty weight was 9,475 kg and maximum weight was 16,194 Kg. Here says the horsepower is 43 and here are some other specs. horsepower, average vehicle size, weight and fuel consumption. Standard golf car controllers deliver a maximum of 225-275 amps sufficient for golf car applications and flat ground use. The Ski-Doo MXZ X 850 has a recorded top speed of 128 miles per hour, while the Polaris Switchback Pro-S 800 caps out at 105 mph, and the Arctic Cat ZR 6000 EL Tigre is a bit slower at 88 mph. Here, you see older 9. 73 HP. Theoretical Speed. A 5 HP engine can generate 2750 ft-lbs/sec. To convert MPH to Knots, divide by 1. Amps = (Horsepower × 746) ÷ Efficiency ÷ Volts. 44 HP) when I typed in the above values (. Drag figures are usually calculated from wind tunnel models without side mirrors, gaps in the windows and body panels, and smooth wheel covers. Marketing departments and salesmen will often quote a vehicles horsepower as an indicator of its performance, however horsepower on its own is only one of the factors which determines performance. We have already calculated that the power being applied to the crank-wheel above is 1,256,600 ft-lb per minute. You must then enter a target time or speed e. Triple disc brakes provide much needed stopping power and an Horsepower: James Watt came up with the concept of horsepower — which is a measure of, interestingly enough, power. Motorsports Standard Atmosphere (MSA) is 60ºF, 29. 6 seconds at 129 mph. One metric horsepower is equal to 0 Calculate the speed per minute by dividing the wheel speed by the tire revolutions per mile. Adjustments of -5 to -10% of corrected dyno figures are typical. Engine Model. Optimum Slip Percent (For max top speed) Heavy V bottom: Low drive height, cabin, side by side engines: 225 Try out this calculator get a rough estimate of horsepower. This calculator is free to use as often as you wish. And it has a top speed of 203 mph. You can use our speed converter to carry out the conversion of speed units. Calculator allows to estimate the power of the engine and the electric bike battery capacity to achieve the assumed speed and range. This is a handy rule whereby boat speed in knots (V) is compared to hull waterline length in feet (L) where V divided by the square root of L = the speed/length ratio or S/LR. 158 mph. ft. Alois states that he may offer a Porsche dual-clutch gearbox if customers request, though it goes against CTR’s analog thesis. 43-24777 and was equipped with a Packard V-1650-7 engine with a 11 ft. Power to weight ratio is the primary factor, but it also takes into consideration the performance advantages of RWD and AWD over FWD, and the advantage of a Manual transmission over an Automatic. A 19 horsepower 4-stroke 348cc engine helped the stock Warrior 350 reach top speeds of 63 MPH. The reason for the complex unit is that we’re accounting for three things with this number: the amount of weight involved, the distance it’s being moved, and how long it The Flywheel HP estimate assumes an 11% driveline loss. The motor speed calculator calculates the synchronous motor speed from the following parameters: f -Supply frequency (Hz). Thus, a 195/55 R15 tyre will be 15" in rim size, 195mm wide, with the tyre hight of the sidewall being 55% of that 195mm, which is 107,25mm. 5 seconds. m. The same reduction on a 7% grade would be worth 0. Grade is the percent of incline for the calculation. Speed Rating Today, the only tires that continue to include the speed rating "in" the tire size (P225/50ZR16) are Z-speed rated tires. = ( Power / Weight ) = ( 234 / 15000 ) Vehicle horsepower To Weight Ratio = 0. Cruise [75% @ 8000 ft] 167 mph. Normally on the nature of 10 to 20% slower at top speed. Horsepower & Aerodynamic Drag Calculator By AssassinRacing. Speed Converter But since you somehow have to connect the motor to the wheel, a gear with a ratio of 2:1 would half the top speed, but double the force. 2021 Yamaha RAPTOR 90 Top Speed, Price, Specs, Horsepower, Weight, Review, Images and Video you can get it here in this post. 8 yards. 0 bar: Dragster - Top Fuel: 45. 37 = 33. Mass (m): Here's the formula to use to calculate HP: Net HP = Weight in pounds* (Speed in MPH/228. Metric horsepower to kilowatts. Acceleration, in physics, is the rate of change of velocity of an object. Secondary Propulsion Weight (in pounds): This could be a kicker motor or an electric trolling motor: Number of Batteries: Avg. Top Speed. piston speed in fpm = stroke in inches x rpm / 6. This can be found on the nameplate of the motor. 7 watts, watts being a unit of power that James Watt also came up with, and the same unit you see everyday associated with things like light bulbs and electrical devices. torque = 5252 x horsepower / rpm. 515 seconds. Examples of Related Automobile Calculators include RPM-Speed-Gear Ratio Calculator Compression Calculator Jeep CJ-7 2. However, the object’s speed, v, is just s divided by t, so […] Formulas for piston speed. 0 bar *Note: Based on SAE J1349 air conditions. 2 km/h). The Horsepower Calculator will calculate the horsepower of any vehicle instantly if you provide the total weight in pounds of the vehicle (and its occupants) and the MPH (miles per hour) that the vehicle is traveling the instant the vehicle crosses the finish line for the quarter mile (called the "trap speed"). Free Horsepower Calculator. 16 km/h is (16/3. Top Boat manufacturers typically use an average weight of about one hundred and fifty pounds per person to calculate maximum capacity. Thus, a 195/55 R15 tyre will be 15" in rim size, 195mm wide, with the tyre hight of the sidewall being 55% of that 195mm, which is 107,25mm. Horsepower (hp / kw @ rpm): manual: 350 / 261 @ 5200 automatic: 350 / 261 @ 5200: 405 / 302 @ 6000: Torque (lb-ft / Nm @ rpm): manual: 375 / 508 @ 4000 automatic: 360 / 489 @ 4000: 400 / 542 @ 4800: Recommended fuel: 91 octane: 91 octane: Maximum engine speed (rpm): 6000: 6500: Emission control system: catalytic converter, AIR: catalytic It ripples with muscle thanks to a supercharged 797-horsepower 6. 8. 825 is 10. 2 in. In this case, following the two digits used to identify the aspect ratio are the letters ZR to identify the tire's speed rating (Z) and its… 135 hp* 160 hp . This force depends on the mass of the car and the value of the car acceleration. S. Motor Efficiency is the efficiency of the motor. P. Here is another example. 08 miles-per-hour. This model is powered with a supercharged, 1812cc, 4-stroke, 3-cylinder, 250 HP engine option. Low trim angle increases frictional drag at high speed but also aids getting onto plane as well as economic operation at lower planing speed. 8 inches and enough performance parts to make owners happy. It can be a little more or a little less, but if some or all of your passengers weigh over one hundred fifty pounds, you may have to decrease the number of passengers you can safely take on board. Top Speed - Forward. . This calculator is for a 1:1 final drive ratio. 27 | Power to Weight (hp/ton) 1,042. For Combat Record : 4950 Air Kills, 4131 Ground Kills, 230 V-1 Kills : P-51 Survivors : Around 300 P-51s exist today, about half are flying. manufactured by Jeep in United States ; 2-door soft-top body type Trying to computer the compression ratio of your engine is easy if you use this tool. how to calculate speed RPM of a motor needed by my car? In general small DC motors will have a peak torque at a given RPM - Often 2000 or 3000 RPM. Number of passengers: Avg. 1/4 mile or quarter mile is a drag race, a type of motor racing in which the vehicle compete to be first to cross a finish line. Enter that value, then click the calculate button. Enter Transmission Information below and click on Calculate to get top speed in each gear Calculated Top Speed in: 1st : mph Use Weller Truck's Road Speed Calculator to find the maximum road speed for your truck and trailer. **Note: Modern Wankel engines tend to have values closer to typical piston 4-stroke engines. **Note: Modern Wankel engines tend to have values closer to typical piston 4-stroke engines. 00256 x 120 x 120 = 271 lbs (at 120 mph) The top speed of the 2021 Yamaha GP1800R SVHO is a whopping (limited) 67 mph. The Suzuki Z400 earned it’s reputation of being an all-around top performer by being equally impressive on trails, sand dunes and on the race track. Of course, it's relative to the weight of the car (think about horses pulling heavy sleds--the heavier the sled, the more horses you need). Gasoline Comparison Test article on Edmunds. Reducing the weight of the bike + rider by 1 kg would increase speed by 0. The tyre hight in percentage is the total amount of millimeters in percentage, that the tyre is high, in relation to the width of the tyre. Where is Sifton Cams? Autocom Active-7 tested. One horsepower is equal to 745. And one very important point: The gearbox already attached to your motor is made to withstand the forces during normal operation plus some margin. Passenger Weight (in pounds): New horsepower = old horsepower * (new top speed / old top speed)^cubed A practical example that is close to home for me is the 320 horsepower 3000GT VR4. Multiply the miles per minute speed times 60 to convert the speed to miles per hour (mph). See full list on goodcalculators. 1st 2nd 3rd 4th 5th; Top Speed: This calculator does not take into account the condition or age of a car. We offer a wide range of parts for all years of the Mazda MX-5 Miata. Ambient temperature around 25 degrees Celsius (77 F), no wind. Given below is the 1 / 4 mile elapsed time calculator to calculate 1 / 4 mile ET from horsepower. For example, if you have a motor rated for 3,000 RPM and 6 in-lbf then the horsepower is calculated below. Gross weight at take-off was 13,320 lbs. 46 seconds to travel the ¼ mile and its top speed (called "trap speed") will be 108. , we all know that horsepower is a unit of power. 94 HP) and roll resistance (7. Drive the test vehicle in the chosen acceleration gear and make a note of the exact speed at an exact RPM point, i. ) Engine RPM Transmission gear ratio BHP per Tonne Calculator. One horsepower can move 33,000 pounds one foot in one minute. Calculator Popups. 5 seconds, on its way to a top speed of Estimated horsepower For example, a 2,400 pound vehicle with 300 horsepower should make it through the quarter-mile in 11. 5) efficiency rating would actually require 0. The formula is simple: Multiply torque by the engine speed (measured in rpm), then divide that by 5,252 to get the horsepower at that rpm level. Therefore, horsepower is equivalent to torque (lb-in) multiplied by speed (rpm * Maximum speed occurs when SE = 0 . Have HP Calculations Changed? This is how horsepower is calculated now, and it's how horsepower has ALWAYS been calculated. You will need to consider gearing to suite your needs, Start from stationary (assumed under electric power,) top speed, Range. com Calculate the theoretical Horsepower required to move a vehicle at a certain speed based on the Vehicle Drag Coefficient (Cd), Vehicle Frontal Area (sq. 30 Four Speed Manual Transmission 400 Horsepower L68 Engine: 3,626 lb. 2020 MV Agusta Brutale 1000 Serie Oro These resistance factors could make the top speed slower than the calculation. Higher temperature, humidity or altitude will lower power output and decrease top speed. Walk forward or backward at 2 meters per second, and your speed is just that: 2 m/s. Calculate your horsepower requirements based on the physical limits of drag and frontal area. The formula for this is: This calculator is designed to give the potential speed values of a vehicle, based on the RPM of the engine, the ring gear and pinion gear ration, the final transmission gear ration (usually 1. The first step to convert HP to amps is convert HP to watts. In short, you never want the 1/2 critical speed of the driveshaft to occur within the 50 to 70 MPH range of the vehicle. Force Calculator The force can be calculated by using the following formula: where p is the momentum, t is the time, m is the mass and a is the acceleration. h. 61 mph at the end of the quarter mile. Top Speed. This calculator estimates your top speed when horsepower is added. Quarter Mile time calculator "You still owe me a 10 second car" - Fast & Furious" Please note that this calculator cannot be more than 95% accurate for every make and model and does not take into account the age of a car, windspeed and gearing and air temperature. 5%, gear up. 07 m/s (65 kg bike + rider). Calculate engine horsepower after a quarter mile run using the ET method. Calculate HP from Trap Speed: Vehicle weight in pounds (including driver) lbs. Theoretical Top Speed Calculator. Milling operations remove material by feeding a workpiece into a rotating cutting tool with sharp teeth, such as an end mill or face mill. Simply select the driven wheels for your car, enter either the kerb weight (KG) or flywheel horsepower (BHP). 36 hp motor. Calculator Use. The surplus effort is the source of this With its light weight, nimble handling, and rock-solid reliability, the BMW 2002 was one of the key elements for the BMW brand in the 1960s. 746 kilowatts: 1 hp(E) = 746 W = 0. The ultimate top speed may be limted by the power, drag and aerodynamics of each individual car. Cruise [55% @ 8000 ft] 151 mph. 180 mph. Many factors have been taken into consideration to make this calculator as accurate as possible, but certain variables like vehicle weight, battery quality, drivetrain drag, etc can have an effect on the actual speed. Vehicle Weight Instructions: The only field below you can change is the Misc weight. 3 is incredibly light and easy to transport. If you know your vehicle's weight and horsepower, this calculator can determine how you car will perform in a quarter mile "stretch". under load, and Minn Kota’s 4" prop pitch, the approximate speed that a motor will push/pull a small boat can be calculated. com. The following table shows you the horsepower and weight for several high-performance cars (and one low-performance car for comparison). 0007492446677193555 bhp. In this example, a guesstimated angle of 45 degrees and a 28 yard straight line distance will require an aiming distance of 19. Convert Horsepower to Watts. e. 460 kW . This here'll calculate the theoretical top speed of your car discarding rolling resistance, wind, insects, photons hitting you, and other such real world stuff. Units of Measure Horsepower is a measure of an engine's ability to do work, specifically, the ability to move a given amount of weight a given distance in a given time. 00-19: Rear tire: 10-28: full dimensions and tires TO-30 Serial Numbers: Location: Serial number plate on instrument panel. With the values from this BMI-Calculator you can check how much a change of body weight or height (or both) would influence the bicycle speed or the required propulsion power. 7: Width (in) 47: Height (in) 45. 183 HP, 2 carbs, 2680cc Remember that one HORSEPOWER is defined as 33000 foot-pounds of work per minute. EP Carry is designed for boats between 6' and 13' that are 600 lbs or less. Quantity (1) Cessna 150 in fleet Use the straight-line distance to the target. 2236. Speed and range values are for a clean hull with weight balanced front to back and side to side, and this is speed through the water. The Speed Distance Time Calculator can solve for the unknown sdt value given two known values. 0 bar: Dragster - Top Fuel: 45. . WARNINGS. 1/4 mile target 12. This calculator computes the estimated engine or motor horsepower from trap speed. Weight: 2800 to 4482 pounds: Front tire: 4. com. Use this calculator to determine your gear ratio and vehicle’s speed in any gear and any engine RPM for best performance. Is it possible to determine the initial climb rate of a craft with a few key pieces of data such as top speed, engine power and weight? For example the XB-42 was an experimental bomber design from the WW2 era. 18 horsepower of work, a pump with a 50% (or 0. Some models may permit up to 10 HP Top Speed: 5 HP to reach 10 mph (16 kph). Occasionally the speed may be higher than the slide rule dictates. This calculator is not adjusted for atmospheric conditions. These two procedures alone add about 5 km/h to the top speed. Try changing the rear end ratio and do it again. 86 Four Speed Manual Transmission 390 Horsepower L36 Engine: 3,626 lb. ¼ Mile Horsepower Calculator: MPH: Weight : HP : Enter the MPH and Weight and Click on Calculate HP = Weight * (MPH / 234) ^3 Intro. When selecting a wheel/tire combo, you should always select the size with the closest to factory overall wheel/tire diameter, regardless of the rim size. 77 horsepower. The answer is the horsepower for the car’s engine. For example, I have a boat with a max RPM of 5,800, my propeller pitch is 24″ and the gear MV claim 205bhp from its 998cc four (208 with race pipe), a dry weight of 186kg, a top speed ‘over 300kph’ (if you can hang on) to go with its oddball looks, twin pipes and £29,680 price. Gross Vehicle Weight - Typically Equipped - Front Axle. 6: Oil Divide the water horsepower by this value to find the actual horsepower of the motor you need for your pump. It’s engineered to reign at the dragstrip with quarter-mile times of 10. 197 mph. 35 x 0. The engine has adequate power at 1000 rpm to do this, but you'd have to slip the clutch until the car reached 32 mph for the engine to run at 1000 rpm without slipping the clutch. 44 mph. 169 mph. The calculations and results are based on imperical data and formulas. WOT= (square root of HP/weight) x BF (bottom factor) Bottom factors range from about 150 for a deep vee to about 225 for a jon flat bottom. 9-15 for $650-$1000 on craiglslist. Drop Down Menus have M for Metric Versions. For example, 50 Hz or 60 Hz. See my Free Android Drag Racing Calculator App in the Google Play Store See full list on calculator. Then enter the total weight of your vehicle, as raced, including the drivers weight. Horsepower doesn't affect the top speed in given gears unless a car cannot reach the gear limited speed. Re: What horsepower motor to use on light weight 14' aluminum boat? I bought my 2003 yamaha for $1000, and I think that was a good deal in this market. photo of TO-30 serial number 1951: 60001 1952: 72680 1953: 108645 1954: 125929 Final: 140000 how to read serial numbers Flyin' Miata is the world leader in Miata performance. Continue reading to see how this formula was derived. 97 MPH. Battery Weight (in pounds): A typical battery is 65 lbs. First you calculate the theoretical speed of the boat by using the following formula, with your calculator: Pitch multiplied by RPM, divided by 1056, divided by Gear Ratio, = MPH e. You can choose kph or mph with the "Units" menu. Example #2. 3000/54 = 55. With 15% more horsepower over its predecessor, this ultra light weight powerhouse produces surprising speed and maneuverability. 0: Fuel Capacity (gal) 20. With so much power in a lightweight track-only hypercar, it’s no wonder the Bolide is an absolute rocket. The 400EX also sports a sturdy steel frame with removable sub-frame and exceptionally rigid cast aluminum swing-arms. 4-stroke − high performance: 12. ). com Calculate the theoretical 1/8 Mile ET, 1/4 Mile ET, 1/4 Mile Top End Speed, and Ideal 1/4 Mile Gear Ratio for a given application based on the Vehicle Weight (in pounds), Vehicle Horsepower (at the flywheel), RPM through lights (finish line), and Tire Diameter (Height) in Inches. Vehicle Weight (in pounds) Vehicle Horsepower: RPM through lights (finish line) 1/4 Mile Top End Speed: Ideal 1/4 Mile Gear Ratio: 1 This calculator will calculate the approximate 1/4 mile time and trap speed of your vehicle. This calculator gives the required horsepower that you will need to achieve your target elapsed time on the 1/4 mile. 62 pounds per hp. Increasing the power of the car by 30 % would only add about 10% to the top speed of the car, as would reducing the drag by 10 %. SAE J1349 standard day is 77ºF, 29. Seat height stands at 30. So the power conversion of horsepower to kilowatts is given by: P (kW) = 0. Max Horsepower: 5-7 HP maximum. 37 wheel horsepower to overcome wind (9. 5L 5-speed (man. 18}{0. For example, a 2,400 pound vehicle with 300 horsepower should make it through the quarter-mile in 11. RPM-6th Gear Help on: Top speed for 49 sprocket combinations; Adjust RPM & Gear Help on: Change RPM and Gear in sprocket combinations matrix; Resulting RPM. Let’s say, for example, your boat weighs 5,000 pounds, and it has a 300-horsepower engine. Honda TRX 450r In-Depth Guide Introducing in the red corner, the Honda TRX 450R is a 39 horsepower sport class all-terrain vehicle(ATV) manufactured by Honda Motors Co. p. For example, 2 or 4. That said, what you have to move affects speed. 38 mph. net Find the Vehicle HorsePower to Weight Ratio with Vehicle power and Vehicle weight. 4)^3 As an example, Car & Driver tested the 744 Turbo in their June 1990 issue. 29: PWR - With Rider (HP/lbs)* 0. 5 = {\displaystyle {\frac {0. Horsepower Calculator from 1/4 mile time, Trap Speed & Weight. An unbalanced driveshaft can experience a critical speed failure in your balancer at an RPM that is lower than the “Safe operating RPM” figure shown below. p -Number of poles. Understanding the (horsepower) hp: Empty Hull Weight & Engine (lbs): lbs: Number of Passengers @ 170 lbs each: crew: Fuel and Gear (lbs): lbs: Altitude above sea level (ft): (power loss = 4% per 1000 ft ASL) ft: Hull Efficiency factor: enter 165 to 225: OMC Boats use 170 - 175 or 180 if using SST prop: Calculated Top Speed: mph: Displacement (Gross Weight): lbs Fast or high-performance cars have a lot of horsepower and a low amount of weight. One electrical horsepower is equal to 0. This ratio is found by dividing the actual boat speed by the theoretical boat speed to get a ratio. PLEASE KEEP IN MIND THESE NUMBERS IGNORE ALOT OF VARIABLES, NO A STOCK FIREBIRD DOES NOT GO 400 KM/H, OK!? Approximate Motor Weight (in pounds): Just a guess, to start. The answers below will be for at sea level and standard pressure/temperature. Inertia Force (F i) Change the forward speed of the car: To accelerate the car speed it needs a force, this force is represented by the car resistance to change its speed (inertia force). It's more common in engineering to use a unit of power that comes from electrical units - watts. ¼ Mile Horsepower Calculator: MPH: Weight : HP : Enter the MPH and Weight and Click on Calculate HP = Weight * (MPH / 234) ^3 Our 0-60 mph time and speed calculator has used real-life figures from 100s of officially published car statistics to test a complex formula. ), Vehicle Weight (in pounds), and desired Vehicle Speed (MPH). Boat performance is equal parts power and propeller. The torque is the twisting force that makes the motor running and the torque is active from 0% to 100% operating speed. An 11% driveline loss is assumed for Wheel HP. ) and trap speed in miles-per-hour. 043 horsepower per pound Pioneer 1000-5 Top Speed: 67 MPH via Electronic Speed Limiter All weights listed above are using Honda’s curb weight which means the weights include all standard equipment, required fluids and full tank of fuel. This calculator is used to find the approximate maximum speed of your brushless-powered R/C vehicle. About the EP Carry speed & range calculator. Bottom: Average fuel consumption for the same period (EPA 2012). Default speed Help on: Calculate RPM per gear at 50 Mph or Km/h in 3 setups; Change Speed Help on: Calculate RPM per gear at particular speed in 3 setups; Chain / Belt Geom. Headwind is the speed of the wind blowing towards the front of the vehicle. speed of 10,000 RPM. This calculator has been designed around statistical averages based largely on sample data from Edmunds. use the horsepower calculator to find out how much power a car would require at a given The base engine provides a projected top-end speed of 32 knots. 40 km The calculator I used said I needed 17. It has a 28 horsepower engine and the Honda 400EX has a top speed of 72 MPH. Assumptions. Use redline RPM to figure top speed for each gear. g. Yamaha made the Warrior 350 famous by giving it the world’s first electric starter and after a 17 year production run it remains the top-selling ATV of all time. Scroll through the list of popular transmissions to find yours. 5 seconds. I used the same formula to calculate torque load on the motor that ja72 gives in another comment below, τ = rF (F is the weight of the robot, a constant, and r is the radius of the wheel), so the torque required from the motor increases as wheel radius increases. Moreover, this is a cause of other phenomena like relativistic velocity addition , time dilation , and length contraction . The calculator will then compute either the target weight or horsepower required in order to achieve this time. This web app uses the quarter mile distance or track. Weight / Horsepower: 9. The motor speed in rpm is calculated as \(n_{s} =2 \cdot 60\cdot \dfrac{f}{p}\) Due to prop slip the boat is actually going slower than the theoretical speed. Kent Kunitsugu, editor for Sport Rider magazine, competing in a land-speed racing event in Mojave, California at the Mojave Air and Space Port airfield in the Mojave Magnum land-speed racing, took a Ninja H2 with just a few bolt-on performance parts adding over 70 horsepower and achieved a top speed of 226. As noted above, make sure you convert the units appropriately first, or use our speed calculator which does that automatically. 5}}=} a 0. e) from starting point to end line. In other words, to get the horsepower of a vehicle generating 350 pounds-feet of torque at 4,000 rpm, you would calculate (350 X 4,000)/5252, which equals around 267 horsepower. 746 kW. Find the engine specs, MPG, transmission, wheels, weight, performance and more for the 2019 Dodge Challenger Coupe 2D SXT V6. 3: Dry Weight (lbs) 935: Curb Weight (lbs) 1074: Capacities: Weight Capacity (lbs) 496: Storage Capacity (gal) 56. Horsepower = (3,000 x 6) / 63,025 = 0. How many HP is that? The Fuel injection "Fuelie" on top of that 283 increased its output to either 250 or 283 horsepower. How to use the quarter mile calculator: 1. Engine Make. Use the electric bicycle calculators to calculate the weight, speed and range of different electric bicycles with various configuration and components. Horsepower has nothing to do with the quality of the car. 73 Remaining Front Wheel Horsepower. Calculate Rear End Gear Ratio Enter the tire diameter in inches, the rpm’s of the engine at entered speed as indicated by your speedometer in mph. 28 lbs per horsepower. Contact us today to learn more. Best performance possible for vehicle acceleration (¼-mile, 0-100 km/h, 0-60 mph, top speed, braking distance, lateral G's, etc. The driving force of an electric motor is torque - not horsepower. 746 ⋅ 10hp = 7. The vehicle has to be accelerate from 0 to 25 km/h in 9 to 10 seconds. 189 mph. The calculator will then compute either the target weight or horsepower required in order to achieve this time. Pioneer 1000-5 Horsepower to Weight Ratio – ( 72 HP / 1,687 lb ) = . Slider This adjusts both power and speed as you move it, and is the best way to use Bike Calculator. By way of example a boat 30 feet on the waterline at 6 knots has a S/LR of: 6 / 5. Click on Calculate. Its top speed was 660 km/h at 7,145 meters. It is representative of a typical hot hatch and is intended for fun use only no claims or quotes can be verified as accurate for your car and are based on average bhp increase percentages from our data. So, 51. For the theory behind the simulator see the performance page. Horsepower & Aero Drag Calculator By David Nguyen Assumptions: Vehicle is a car driven on concrete with tire pressures 30 psi. without the driver. Maximum horsepower determines the top speed of a vehicle. The weight section of the calculator automatically adds 150lbs to account for yourself just in case you forget | get yourself on the weighing scales and adjust accordingly. The stock 93 RX-7 was rated at 255 HP at the flywheel and had a top speed of 158. brake specific fuel consumption = fuel pounds per hour / brake horsepower Click on "Horsepower", enter the torque and rpm, click on "Calculate" and the answer is 361. Our calculator shows potential results for inflatables, rowboats, or prams. g. 24: Dimensions: Length (in) 132. 286 The dragsters hit this limiter at around 850 feet. You must then enter a target time or speed e. There are so many factors upon which a speed of a vehicle depends. 23inHg (inches of Mercury) pressure, 0% Relative Humidity. M. Honda 400ex In-Depth Guide The Honda 400EX is a 375lb all-terrain vehicle(ATV) manufactured by Honda Motors Company from 1999 until 2009. The Polaris Assault 800 tops off at 112 mph, and Ski-Doo 850 has a top speed of 118 mph. Speed is a factor of prop pitch and motor R. Top Speed - Reverse. 3% or less whenever So, going back to our illustration, if we had a 1 HP gas engine on top of the dam, and that engine was attached with a pulley to the line holding the 36 lb weight, we would be able to lift that weight up at a staggering speed of over 15 ft per second (550:36 = 15…. Note that you will get ridiculous speeds for overdrive gears. Fast way to determine Gear Ratio and Speed. Estimate Top Speed Engine Displacement Exhaust Length Gear Ratios MPH at RPM Air Density: The Nightrider Diaries The ramblings of a genius a, a madman and something in between. 17 seconds while 0-124 mph (0-200 km/h Top speed is 360 km/h, or 225 mph. P. Top 10 Lists Top Speed Lists 0-60 mph Lists Cool Stuff; Top 10 Fastest Cars: Top Speed Over 200 mph List: 0-60 mph in less than 3 secs: Quarter Mile Calculator: Top 10 Most Powerful Cars: Top Speed Over 250 mph List: 0-60 mph in less than 4 secs: 0-60 Calculator: Top 10 Fastest Diesel Cars: Top Speed Over 320kmh list: 0-60 mph in less than 5 Gear Ratios Calculator, MPH, Top Speed This calculator outputs the how fast a car can go in each gear as calculated by the gear ratios, engine redline and tire size. In metric units, we're talking about newtons (a unit of force) times meters/second. Submit Calculator Idea Enter gear ratios, primary ratio, sprocket sizes and tire diameter, then drag RPM slider to calculate speed from RPM. To calculate the horsepower of a car, start by finding the engine’s torque value and engine speed in the owner’s manual. 56, this creates you a 'Speed to RPM conversion ratio'. variable description elapsed time your elapsed time target weight the running weight of your … horsepower-hp required for elapsed time-et goal calculator Read More » The numbers show that the triple 300 hp engines (900 hp total) have a power-to-weight ratio of 1. The result is the propeller slip. g. DRAG PERFORMANCE CALCULATOR. h. where v is the velocity, d is the distance, and t is the time, so you can read it as Speed = Distance / Time. Stall Speed. 0156. 6) m/s you had no reason to use a unit of joule/min for your answer, since minutes were not used in your units for mass, gravity or speed. It is a good tool to model changes to see if you can be competitive in a given field or class. A car's top speed is affected by many things. The boat horsepower-to-weight ratio is simple to calculate and can be expressed in horsepower per pound or pounds per horsepower. g. 33: PWR - Curb Weight (HP/lbs)* 0. 175 mph. T. 27 mph. In your case, it is a boat, so a couple of factors will affect the speed you can The formula for average speed, also called average velocity in physics and engineering, is: v = d / t. Determine the increase in engine horsepower when an after market modification, race or performance part has been installed with trap speed. 35 Air resistance (lbs) = 21 x 0. This weight loss calculator allows you to calculate the number of calories you should eat in a day to reach a specific target weight by a certain date. This means that every time you go over this speed, you're essentially wasting gas and money - and creating unnecessary greenhouse gases. 18 0. the airflow begins to detach from the propeller which decreases efficiency and dramatically increases noise. The same car with 250 hp would have a weight to power ratio of 14 lbs per horsepower. The Ferrari creates 350 foot-pounds of horsepower while weighing 3,000 pounds. at 29. E85 vs. Engine Rear Wheel Horsepower Calculator Based on total vehicle weight and 1/4 mile MPH. The web page will calculate all other fields. The drive from San Diego to Las Vegas (a popular destination for many Southern Californians) was just over 333 miles Speed is important but some top speed can be sacrificed if it allows better performance in the speed range the boat will be used most in and we deem most important. Simply select the driven wheels for your car, enter either the kerb weight (KG) or flywheel horsepower (BHP). The REAL top speed of your cart is limited by the weight of the cart (with you in it) and the power of the engine. One horsepower is equivalent to the amount of force needed to lift 550 lbs of weight within a period of 1 second. The calculatio Enter the following values. Let's plug it in to the formula: HP = 3231 * (86/228. Harley-Davidson EFI-EFI basics explained-EFI modifications explained. The stock 93 RX-7 was rated at 255 HP at the flywheel and had a top speed of 158. The results are only as acurate as the data you enter. This is the distance needed for the calculation. horsepower weight top speed calculator