revving by itself
Thread Starter
Racer
Joined: Jan 2005
Posts: 433
Likes: 0
From: Northridge southern california
revving by itself
after i got an exhaust my car is revving after i switch gears. when i shift from 2500 rpms or so the rpms drop to about 1500 and they raise back up to about 2000 by itself , i dont think it did that befor e the exhaust . anyone have this occur, what do you think causes this, should i take it in to the dealer, or not waste my time?
Thread Starter
Racer
Joined: Jan 2005
Posts: 433
Likes: 0
From: Northridge southern california
no
Originally Posted by cerino2000
Does whether or not the A/C is on make any difference? i.e. if the A/C is off, does it no longer do it?
Race Director
Joined: Oct 2004
Posts: 10,089
Likes: 14
Originally Posted by c6 corvette Z51
after i got an exhaust my car is revving after i switch gears. when i shift from 2500 rpms or so the rpms drop to about 1500 and they raise back up to about 2000 by itself , i dont think it did that befor e the exhaust . anyone have this occur, what do you think causes this, should i take it in to the dealer, or not waste my time?
Thread Starter
Racer
Joined: Jan 2005
Posts: 433
Likes: 0
From: Northridge southern california
i dont think so
Originally Posted by shopdog
Ok, so you aren't speed matching when you shift, and the momentum of the car is forcing the engine to assume the correct RPM for the existing road speed when you let out the clutch. Sounds like it is working correctly to me. To stop this behavior, which is hard on the clutch, you should learn to use the throttle while shifting so the engine will be speed matched when you let out the clutch.
Le Mans Master
Joined: Aug 2004
Posts: 6,412
Likes: 1,296
From: Bluffton, SC
Originally Posted by c6 corvette Z51
after i got an exhaust my car is revving after i switch gears. when i shift from 2500 rpms or so the rpms drop to about 1500 and they raise back up to about 2000 by itself , i dont think it did that befor e the exhaust . anyone have this occur, what do you think causes this, should i take it in to the dealer, or not waste my time?
Le Mans Master
Joined: Aug 2000
Posts: 5,531
Likes: 1,944
From: Austin Texas
Originally Posted by c6 corvette Z51
after i got an exhaust my car is revving after i switch gears. when i shift from 2500 rpms or so the rpms drop to about 1500 and they raise back up to about 2000 by itself , i dont think it did that befor e the exhaust . anyone have this occur, what do you think causes this, should i take it in to the dealer, or not waste my time?
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Thread Starter
Racer
Joined: Jan 2005
Posts: 433
Likes: 0
From: Northridge southern california
magnaflows
Originally Posted by StanNH
What type of exhaust system was installed? Was anything else done at the same time? Have you contacted the installer?
the dealer said it had something to do with the cluster, i dont think he knew what he has talking about.
Thread Starter
Racer
Joined: Jan 2005
Posts: 433
Likes: 0
From: Northridge southern california
that sounds right to me
Originally Posted by MitchAlsup
Sounds (to me) like a minor leanness issue that could be associated with the new exhaust. The Engine computer should learn this situation in 50-200 miles of normal driving and retune the car for the new conditions. E.G. it should go away all by itself.
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Originally Posted by c6 corvette Z51
i like that explaination, and that is pretty much what i assumed. thats for the help
Race Director
Joined: Oct 2004
Posts: 10,516
Likes: 2
From: Virginia Bch VA
Cruise-In VI Veteran
Cruise-In VII Veteran
St. Jude Donor '06
Did you disconnect the battery for the install? 
Did you leave it in reverse?
Electronic
Gremlins man
Disconnect the battery for 5 minutes. Take er out to the country and wind the Dog Snot out of it.
If it persists call ShopDog at BR-549.
Did you leave it in reverse?
Electronic
Gremlins man Disconnect the battery for 5 minutes. Take er out to the country and wind the Dog Snot out of it.
If it persists call ShopDog at BR-549.
Thread Starter
Racer
Joined: Jan 2005
Posts: 433
Likes: 0
From: Northridge southern california
the battery
Originally Posted by JFTaylor
Did you disconnect the battery for the install?
Did you leave it in reverse?
Electronic Gremlins man
Disconnect the battery for 5 minutes. Take er out to the country and wind the Dog Snot out of it.
If it persists call ShopDog at BR-549.
Did you leave it in reverse?
Electronic
Gremlins man Disconnect the battery for 5 minutes. Take er out to the country and wind the Dog Snot out of it.
If it persists call ShopDog at BR-549.
Race Director
Joined: Oct 2004
Posts: 10,516
Likes: 2
From: Virginia Bch VA
Cruise-In VI Veteran
Cruise-In VII Veteran
St. Jude Donor '06
Originally Posted by c6 corvette Z51
i will try this but why do you think it is going to make a difference?
