Quote:
Originally Posted by jannes_z-28
I remember seeing somewhere that to double your speed you need 8 times more power.
Jan
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the drag increases geometrically with speed, "speed squared" so to speak,, so its double the speed = four times the power...
the eight fold is if you want to accelerate to twice the speed in the same distance....
but i see your point... do a full throttle run, record the speed and when the car is dyno´ed ill know how much power i have at the wheels at that given rpm.. and then its relatively simple math to figure out how much power i need then (assuming that it takes zero Hp to go zero Hp and not account for rolling resistance will give an over estimate of power needed)