Yes! DO put the gear PID into your display! Some of what you posted doesn't make sense to me. You should NOT see 4th gear during a passing maneuver! I would expect the transmission to drop probably into 2nd, but at least into 3rd when you are passing at WOT. You'll only see 4th when the load on the powertrain is low, at "cruise", probably above 45-50 mph, depending on how you have things set up.
The low gears and bigger tires MAY keep you in 3rd up to, say 55, but I would not expect it to be much more than that. A lower axle ratio is going to put more load on the powertrain and that will keep you in 3rd gear longer. You INCREASE your axle ratio, or mount smaller tires if you want to get into 4th gear sooner.
- Jack
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Mon, May 10th, 2010, 10:15 PM
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