> How can anyone believe that NOT reducing the number of times a piston
> slides up and down in a cylinder will not reduce wear and tear on a motor.
I think this IMVHO would be true if you were rubbing metal to metal. But,
oil provides lubrication which minimizes wear. When RPMs get above a level
where the oil system can't provide sufficient lubrication (redline),
excessive wear begins. Thus, a B engine in good working order should have
practically the same wear running at 3000RPM or 4000RPM.
On gas mileage, not sure the overdrive will make that much difference
either. Maintaining highway speeds at a higher gear ratio (overdrive -
lower RPM) means the engine must work harder (stronger combustion -- more
fuel). Of course, this would depend on the torque-horsepower curve of the
engine...i.e., the optimal RPM range for performance. Not sure where the
overdrive puts this on a B engine.
All is IMHO which caused me to ask the question in the overdrive question in
the first place -- since my logic has been off before. 8^)
Nick 73B - In middle of engine rebuild w/ upgrade to overdrive being
considered
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