Originally posted by KevinS
Torque does NOT equal power.
Power (W) = Torque (Nm) * rotationfrequency (2*pi*RPM/60)
A 2-stroke may get much higher RPM than a 4-stroke, but they have poor torque, especially at high RPM.
Comparing both types of engines with the same gearing is unfair to both. 4-stroke will have much better acceleration, 2-stroke will have much better topspeed. I think you will find both are reletively close in performance when you find different optimal gearing for each for a given track.
What I was stating is that, as torque increases so does horsepower. torque is the numerator in your equation, so yes, it makes sense that more torque= more horsepower. heres the simpler version of the same equation for the mathematically challenged....
Horsepower= (Torque*RPM)/ 5252
from many runs on a real engine dyno, it's amazing how the HP and torque values cross at 5,252 RPM... always...
I also stated earlier that the 4 stroke would accelerate better, and the 2 stroke would have better top speed- with the same gearing. I don't think there are any factory kits that could be geared right for a 4 stroke using available off the shelf parts.
I think we are on the same page here, but others...... I'm not so sure
