7.1 Cup Gear Ratios

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02-19-2015, 12:29 AM

24Chromium

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7.1 Cup Gear Ratios

Anyone know the factory gear ratios on the 997.1 Cup car gearbox? I'm trying to fill out the vehicle details on my Motec.

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02-19-2015, 12:59 AM

fstockcarrera

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Quote:

Originally Posted by 24Chromium

Anyone know the factory gear ratios on the 997.1 Cup car gearbox? I'm trying to fill out the vehicle details on my Motec.

I'm sure GT gears will chime it, this what my notes are :
3.1667
2.1333
1.7222
1.4
1.1304
0.931

Bob

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02-19-2015, 05:55 AM

CRex

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Here you go:

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02-19-2015, 09:01 AM

coryf

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05-07 or 08-09?
I believe the early cars had a 1.154 5th and .964 6th. 1-4th ratios were the same for 05-09.

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02-20-2015, 12:22 AM

24Chromium

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Brilliant, thank you!!

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02-20-2015, 01:30 AM

Polarporsche

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2009 Cup Production Gear Ratio Set

Here's whats listed for the 2009 Cup:

Crown Wheel and Pinion 8/32
1st Gear 12/38 997.302.961.6E
2nd Gear 15/32 997.302.962.6C
3rd Gear 18/31 997.302.963.7E
4th Gear 20/28 997.302.964.7J
5th Gear 23/26 997.302.966.7N
6th Gear 29/27 997.302.966.7L

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