PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

a conandrum if you will....

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Old May 7, 2006 | 07:48 PM
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Default a conandrum if you will....

well i just found out today that the previous owner of my car had put 3.73's in my car and i never knew about it. I was under the assumption this entire time that my car has 3.23's which gm put in. The conandrum is that when Bill tuned my car he tuned it for 3.23's. My speedo is not off and all my shift points are on point. it makes no sense to me that the car is set for 3.23's but in actuality it has 3.73's and there are no discrepencies from the car, shift wise or computer wise. Any comments or suggestions??

FYI the car was tuned with HPTuners
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Old May 7, 2006 | 08:07 PM
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here's a screenshot of his speedo & trannyshift point stuff...

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Old May 7, 2006 | 10:38 PM
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I will ask the most obvious question; Have you actually verified 3.73's are installed in the rear? I would hate to take someone's word on that, and would physically check to make sure.
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Old May 8, 2006 | 01:33 AM
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Well if it shifts at 40, 80, 120... it's got 3.23's. Maybe the other guy remembered wrong or just didn't know.
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Old May 8, 2006 | 08:58 AM
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3 guys physically counted the teeth on the ring and pinion.

41 teeth on ring and 11 on the pinion

41/11= 3.727 or 3.73
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