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Old 03-22-2026, 02:23 PM   #1
JSH


 
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Drives: '20 ZLE
Join Date: Jun 2020
Location: Mile High
Posts: 4,192
Performance Shift Tuning

When I tap it into PS at 60 mpg it downshifts to 3rd gear.

Is there a way to tune the TCM to only drop down to 4th gear?
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2020 ZL1LE A10.
LME LT4 390 short block, LME CID Heads, Kong E2650, FBO.
15" conversion, MT ET Street R 325/15.
100 octane: 1045hp/1055tq.
100 octane + Meth (1x10+): 1117 hp/1067 tq
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