Quote:
Originally Posted by FarmerFran
Anyone have a gear vs speed chart for the manual ZL1
TIA
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Here's the gearing and speed relationship for your ZL1 Convertible M6 with 3.73 differential and 305/30-20 SC3 tires. Convertible stock tune has the speed limiter at 155 instead of 206 like the ZL1 Coupe has.
1st gear 2.289= 60.74mph@6500rpm=9.35mph/1000rpm
2nd gear 1.611= 86.31mph@6500rpm=13.28mph/1000rpm
3rd gear 1.208=115.10mph@6500rpm=17.71mph/1000rpm
4th gear 1.000=139.04mph@6500rpm=21.39mph/1000rpm
5th gear 0.818=155.00mph@5927rpm=26.15mph/1000rpm
6th gear 0.536=155.00mph@3884rpm=39.91mph/1000rpm
The mph/1000rpm allows you to calculate what downshifting at a certain speed would do. Example, if you were going 60mph in 6th gear, loafing at just 1503rpm, and you downshifted to 2nd gear, it would then be revving at 4518rpm.
Note on ZLE video, that car has shorter tires and a different 6th gear ratio than the normal ZL1, so not an exact match to your car.