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gears, tuning question.

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Old 06-24-2009, 06:30 PM
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Default gears, tuning question.

Hello all my impala project isn't to far from comlpetion and the rear end is the only thing that's going to cost a lot for it to be complete. My question is can I dyno tune the car with the stock 3.08 gears then later add on the 4.56s I have. Or do I have to get it retuned?
Old 06-24-2009, 07:52 PM
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Dyno tune will do little other than your WOT AFR and spark tables at WOT.
Get a good street tune in the car as is, then just have the trans, rev limiter, shift settings re-done after the rear is done.

Any resonable tuner will not double charge you for a gear change (long as it's been a reasonable amount of time).

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Check your PM's.
Old 06-24-2009, 08:28 PM
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Ohh ok I c. Well its a th400 so. There's no trans tuning needed.




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