View Full Version : Weight to HP ratio?


Z34RedSox
02-17-2005, 11:29 PM
Does anyone know what the "weight to hp ratio" is or know where I could find it? Not sure if that even exists or mekes sense, but if it does...

-Zach-

dgHotLava
02-17-2005, 11:35 PM
weight of car= 2,400 lbs (roughly....put your car on a scale and see)

hp rated at 108hp (at flywheel)

2400/108 = 22.222r

that is 22.222 pounds per every 1 horsepower....22.22:1

i know it involved math but its not rocket science...lol

Z34RedSox
02-17-2005, 11:36 PM
so i guess there isn't a general rule then, which now would make sense.

Z34RedSox
02-17-2005, 11:40 PM
i think i meant this

a car at "x" wheight would have "y" ammount of horsepower to equal the speed of the other car.

dgHotLava
02-17-2005, 11:58 PM
no there are more variables than that ....like gearing, areo drag, but if both of the cars were identical except for weight and hp....

the general rule your thinking of is...

if your car weighs half as much as car 'x' you need half as much hp to match speeds....

examples....

car 1:
weight 2000 lbs with 200hp
2000 / 200 = 10 lbs per hp

car 2:
weight 1000lbs with 100hp
1000 / 100 = 10 lbs per hp

does that help....????

Z34RedSox
02-18-2005, 02:11 AM
good info, thanks.