vert gears?

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Sep 18, 2007 | 09:15 PM

#21

95hitam6

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yeah that had me leaning towards a swapped trans. thanks for your help guys.

Sep 19, 2007 | 09:43 PM

#22

Ragtop 99

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From: Bethesda, MD

Some 3.73s or even 4.10s would make your car more drivable.

Sep 21, 2007 | 11:29 AM

#23

gyrene2003

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From: Chesapeake va

dammit, 3.90s FTMFW!!

Jan 1, 2008 | 12:37 PM

#24

kdolson212

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Quote:

Originally Posted by todddchi

John's right, there's a lot of crap in this thread.

I think the guy who "ordered his 2002 M6 with 3.73's" should post up his build sheet. Because apparently he is the only 4th gen owner with enough pull at GM to get them to build a unique configuration and create a new factory PCM file. Must have been an expensive option.

A few weeks ago I had a 20 minute argument with a guy who insisted his '99 A4 WS6 had 3.90's from the factory.

It's been a while since I visited this thread. I don't have a build sheet, the dealer apparently didn't think I'd want it. I've been trying to get some build info but have been unsuccessful. When I ordered the car the salesman told me that I could get 3.73 gears from SLP along with other SLP options (dual dual exhaust etc.). My RPO code shows a GU6 from GM, but I thought that SLP would install 3.73 gears and that the RPO code wouldn't reflect the actual gears. In an effort to try to determine the gears I calculated what RPMs I should see at various road speeds in sixth gear for both 3.73 and 3.42 ratios. I then did a road test with a GPS device to try to eliminate any speedometer errors. I measured my rear tire circumferences to make sure the calculations reflected actual tire geometry. I guess it's now time for me to eat crow. Looking at the RPMs from the tach I now conclude I have a 3.42 gear ratio, so much for trusting car salesmen.

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Gear_ratio_chart.zip (3.6 KB, 21 views)

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