Quote:
Originally Posted by LOWDOWN
1) Since when has a reduction in Total Final Drive Ratio (trans/diff/tire diameter) hurt mileage?
'12 Rear = 3.55:1; 285/35 X 19 = 26.9"; 1st Gear = 2.97
'13 Rear = 3.31:1; 285/35 X 20 = 27.9"; 1st Gear = 2.66
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Total effective ratio drops by about 20%...which only improves economy, and adds the benefit of no shift in the 0-60 sprint. GG Tax is avoided...
2) The speed "when exiting a turn and entering a straight", is aka CORNER-EXIT SPEED...I didn't make this up, it's simply the proper road-racy term for what you described in unabbreviated layman's terms...
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1) It doesn't only improve economy if it requires more torque to move the car. given 2 identical cars save for the first gear ratio you yield the following result: the car with the taller gearing will have to be pushed harder to yield a similar rate of acceleration of the shorter geared vehicle... using more gas... hurting mileage.
2) No, i was simply describing the point in time where you floor the gas pedal while on a track. Given that your previous statement had to do with why would you want more power, one could conclude my statement was not singling out the GT500 vs ZL1 corner exit speed it was merely a statement on when you could use more power despite the inherent increase in launching difficulty....