4.10 diff install, weird problem, please help?
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Pro
Joined: Jun 2008
Posts: 672
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4.10 diff install, weird problem, please help?
Hello,
Got my 4.10's diff installed and after a few hundred break in miles I started to get on it. I have a weird problem that did not happen before the gears. For whatever reason in 2nd gear only, when I punch it and get to 5700-5800rpm it acts like the rev limiter is set there and bounces back and forth. It does not do this in any other gear whatsover. The rev limiter it set to 6700rpm in the HP tune. I can run it thru 1st, then 2nd, 3rd and so forth. Or I can take if from a low 2nd gear roll and the same thing happens. Does the HP software have to be programmed rev limiters for each gear? If so, I still don't understand why it did not happen before the diff swap. Please advise.
Thanks
Got my 4.10's diff installed and after a few hundred break in miles I started to get on it. I have a weird problem that did not happen before the gears. For whatever reason in 2nd gear only, when I punch it and get to 5700-5800rpm it acts like the rev limiter is set there and bounces back and forth. It does not do this in any other gear whatsover. The rev limiter it set to 6700rpm in the HP tune. I can run it thru 1st, then 2nd, 3rd and so forth. Or I can take if from a low 2nd gear roll and the same thing happens. Does the HP software have to be programmed rev limiters for each gear? If so, I still don't understand why it did not happen before the diff swap. Please advise.
Thanks
Le Mans Master
Joined: Aug 2004
Posts: 5,259
Likes: 16
From: Monroe Township New Jersey
St. Jude Donor '05-'06-'07-'08-'09-'10-'11-'12-'13-'14-'15-'16
St. Jude donor in memory of jpee '14
Hello,
Got my 4.10's diff installed and after a few hundred break in miles I started to get on it. I have a weird problem that did not happen before the gears. For whatever reason in 2nd gear only, when I punch it and get to 5700-5800rpm it acts like the rev limiter is set there and bounces back and forth. It does not do this in any other gear whatsover. The rev limiter it set to 6700rpm in the HP tune. I can run it thru 1st, then 2nd, 3rd and so forth. Or I can take if from a low 2nd gear roll and the same thing happens. Does the HP software have to be programmed rev limiters for each gear? If so, I still don't understand why it did not happen before the diff swap. Please advise.
Thanks
Got my 4.10's diff installed and after a few hundred break in miles I started to get on it. I have a weird problem that did not happen before the gears. For whatever reason in 2nd gear only, when I punch it and get to 5700-5800rpm it acts like the rev limiter is set there and bounces back and forth. It does not do this in any other gear whatsover. The rev limiter it set to 6700rpm in the HP tune. I can run it thru 1st, then 2nd, 3rd and so forth. Or I can take if from a low 2nd gear roll and the same thing happens. Does the HP software have to be programmed rev limiters for each gear? If so, I still don't understand why it did not happen before the diff swap. Please advise.
Thanks
Hard to answer without a completed profile, Automatics are different from Manuals!
autos go to vcm editor and make the appropiate changes! Speedo
Last edited by Tommy D; Feb 14, 2009 at 12:38 AM.
Thread Starter
Pro
Joined: Jun 2008
Posts: 672
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Safety Car
Joined: Dec 2005
Posts: 4,157
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From: North Carolina
St. Jude Donor '07-'08-'09-'11-'12
This is the explanation for anyone else that needs the info, thanks to Joe_G for this one!
http://forums.corvetteforum.com/1559412511-post13.html
http://forums.corvetteforum.com/1559412511-post13.html
