Quote:
Originally Posted by dontlifttoshift
Right, but the ECU doesn't know what tire diameter or gear ratio you have. Consequently the shift strategy is based false information. It's close for a lot of applications but with a 31" tire it won't shift the way it should.
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I was thinking the same thing. The ZL1 uses 2.85 gears with a 27” tall tire so it’s similar to 3.73 gears with 31” tall tires if I did the math right. Got me wondering what the Connect and Cruise tune assumes.
Don