Originally Posted by JohnnyB
I understand gearing but its still does not make sense.,
so if i gear my car correclty i cauld produce more speed, whats the limit when torque takes over?
Torque NEVER takes over. It is totally irrelevant. If you geared your car low, it would accelertate quickly - but then you would run out of revs. Ie, you could have it so at 70mph u were doing 7000rpm in 5th. The car would be very fast, but 70 would be ur top speed. Now, say that your engine could rev to 20k. The car would be very fast, but this time would have a top speed of around 180... The torque figure hasn't changed, but your Power figure now has (Power = torque x rpm)