Thread: gear ratios
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Old 10-15-2012, 04:28 PM   #12
BYprodriver
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Quote:
Originally Posted by JFP in PA View Post
I doubt that running a comparison on a chassis dyno would show anything useful. Problem is the dyno is measuring torque and imputing HP at any given RPM, neither of which would change as the engine is the same, they would just shift in relation to the wheel speeds. Plus most chassis dyno's don't like gear shifts under power as the car tends to start moving about.

One of the single biggest advantages of the five speed is the difference in weight Radium noted, which is considerable (to the tune of about 100 lb. all in), and the dyno has no idea how much the car weighs.
I realize that. I was thinking about axle angularity effect on driveline loss?
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