02-06-15, 03:35 PM
(02-06-15, 01:58 PM)Dead Eye link Wrote: Well no, you wouldn't necessarily alter the drivetrain loss to an appreciable level, but it does makes sense that you gain or lose WHP (Wheel Horsepower) due to the difference in torque multiplication through the final drive ratio - at least that's what it appears to show I believe
Though thinking about it, I guess you are more just moving the power band around at the rear wheel? Bare with me whilst I run this through my head... and write it all down
Acceleration can be altered by adjusting the final drive ratio. This seems sensible enough to me.
As Acceleration is a function of power (force) there must be a difference in power to obtain a difference in acceleration.
Therefore changing the sprockets (which we know alters the acceleration) must alter the available power at the rear wheel
You're mixing up power, acceleration and torque. What you're calling Wheel Horse Power is the Torque on the rear wheel. Changing the sprocket ratio will increase or decrease the torque on the rear wheel not the power. It'll also change the acceleration and the top speed of the rear wheel.
If you change the ratio so the rear wheel spins faster by say reducing the number of teeth on the rear or increasing the number on the front you'll obviously gain more top speed but you loose acceleration and torque. If you go the other way and change it for more acceleration you also gain more torque but loose top speed.