Hi Brad Man,
I agree with you - get everything possible out of a four-speed, and then five, six, seven, etc. BTW, I need to be a little careful - this story is not solely about torque. Power really does enter the equation, but only rather indirectly: this has to do with engine reciprocating mass, RPM, and firmness of shift. At high RPM's the engine internals have a lot of momentum, and a sudden gear shift creates a high impulsive load on the tranny due to the sudden change of momentum imposed on the engine iternals. And the firmer the shift, the higher the peak impulsive load. This can kill trannies even with low-output motors.
Best,
MAP
I agree with you - get everything possible out of a four-speed, and then five, six, seven, etc. BTW, I need to be a little careful - this story is not solely about torque. Power really does enter the equation, but only rather indirectly: this has to do with engine reciprocating mass, RPM, and firmness of shift. At high RPM's the engine internals have a lot of momentum, and a sudden gear shift creates a high impulsive load on the tranny due to the sudden change of momentum imposed on the engine iternals. And the firmer the shift, the higher the peak impulsive load. This can kill trannies even with low-output motors.
Best,
MAP