horsepower

[Flexor]

This is crap, sounds like your an engineer not a mechanic.

Sounds like you're a loser. I guarantee you it works, you look at any car range that has identical bodies but different models have different engine sizes and horsepower. Although the bigger engines are slightly heavier, the formula will accurately calculate how much faster the car with more horsepower will go. You can go and do the sums and check them against the official data and you will see its close...

[Dalton5]

Sounds like you're a loser. I guarantee you it works, you look at any car range that has identical bodies but different models have different engine sizes and horsepower. Although the bigger engines are slightly heavier, the formula will accurately calculate how much faster the car with more horsepower will go. You can go and do the sums and check them against the official data and you will see its close...

Well ill give you that, I AM a loser.......anyway, the original question was how fast does a car go based on its horsepower; what i am saying is there are far too many variables for this to be summed up in a nice little mathematical equation. Stuff like weight, gear ratios, amount of torque etc. as mentioned above come into play. Take the grand national for example, you'd be doing good to get 300 hp out of one however with its insane amount of torque it was the fastest production car (domestic) in 87'.