how much more horsepower do you need for an extra 100lb/?
461466
What did your M3 weigh before? Maybe 3500lbs? Then it's easy enough:\n\n(3500 + 100) / 3500 x 240 = 246.9\n\nYou need another 7bhp. But pay attention to the other answer that mentioned the effect on handling.
98755
I've always heard that for 5' it's 100lbs. and add 5 lbs. for each inch thereafter.
406425
In the Chevy cars, they were rated at 245 HP with dual exhaust. Trucks may have varied a bit
147090
I believe the rating is 345 HP
294307
If you get a kit then it will tell you whether or not you need to do anything other than bolt on the kit. Here's one site to look at...\n\nOne other thing... You can NEVER have enough HORSEPOWER!!
328168
Horsepower = torque in lbf.ft x rpm / 5250.
55453
The horsepower of a motor is dependent of two parameters: speed (RPM) and torque (lb-in or lb-ft). \n\nPower = speed*torque (carefull with the units!!)\n\nAs you see, the horsepower not only depends on the motor's speed, but also on the torque applied.\n\nYou cannot measure the horsepower unless you can meassure these two parameters.
487670
None. It takes no power to maintain that speed (on level ground, no friction). The object has kinetic energy (0.5 * m * v^2). Power was required to put it in motion and power can be recovered by decelerating it. If you do the math, the energy is 3551.86 ft-lb, equivalent to 1 horsepower for 6.458 seconds. Answer 1 neglected the fact that weight must be converted to mass by dividing by g, and energy is proportional to v^2.
771251
great thing about RIBs is, the transom cones. they will allow you to support heavier engines than a standard boat of the same size. however, in this case, 3hp is negligable and the weight will be insignificant. i run a 75hpon my 18foot rib, which i designed and built myself, and it designed to take 120hp, another one was built at the same time, and he has a 200hp suzuki on that, and last i saw i, it was still running fine. \nyou be fine.
795746
Yes I think you should since the ideal weight is 100 lbs.  tee hee.
474865
I don't think there is a maximum legal horsepower... after all, there's the Bugatti Veyron, and that has 1,001 horse or something and it's still street legal - there are many other factors to it!
414494
If you know how many watts the motor can provide then dividing that by 746 will give you horsepower.\n\nThe Amperes and knowing the supply (ie. 220V) can give you horsepower since amps times volts gives watts.\n\nThings get complicated if these readings are not a measure taken just before the point of stalling the motor with a load on the motor to induce it's full power output.
650229
99-100 lbs would be perfection.
684418
i dont know with the heavy frame but with a race frame i was able to get up to 65 miles an hour and i am 6' 220lb.   with after market piston valves cam ect. there is a place in albany ga. that specializes in brigs and stratton race engines i dont remember t he name but with a little searching it should be easy to find
38663
1 horsepower ≈ 745.700 W (rounded up from 745.69987158227022 W)
216149
Depending on which vehicle the 350 is in. About 225 to 305 hp. Teacher should learn how to spell.
488693
You don't give any stats for your Camaro, but I would estimate that the earlier answer is correct in assuming around 200 hp currently. I don't know what the curb weight of your particular vehicle is, but if it's anything like the ~3K lb. Camaros of its era, your mass-to-power ratio (power-to-weight is mathematically meaningless) is at a bit of a disadvantage to his; he may only pull 140-168, but Sunfires are light. Modern engines have much more favorable (and constant) torque curves than those of years past, so you are also at a disadvantage there. You don't mention tires, but since I assume you've changed them at more-or-less regular intervals, they shouldn't be an issue. Technically speaking, your car is at a bit of a mechanical disadvantage, and since you refer to him as a "kid," he probably has an edge in reaction time. However, he is also probably fairly inexperienced, and may drop the ball from over-eagerness, so my advice is to rely on intimidation.