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Do your mods cause problems?

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Old Sep 6, 2007 | 02:41 PM
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Default Do your mods cause problems?

Since getting my C6 in Nov of 2005, I've added the following mods:

Catback exhaust
tune (Jeff at CAM)
free flow air filter

I've been thinking about either a supercharger or a cam package.
But I think this may hurt the longevity of the drivetrain.

I'm wondering, those of you that have modified the drivetrain or engine...has it caused very many issues?

Last edited by Nav Vet; Sep 6, 2007 at 02:42 PM. Reason: correct question
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Old Sep 6, 2007 | 02:51 PM
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YES!!! With the wife and bank account!!
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Old Sep 6, 2007 | 03:06 PM
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In the 49 years that I have been tweeking the small block with mods they always carry a level of grief with them. Rocker arms, pistons, cams, syncros, posi-clutch plates, burnt plug wires (headers)...to name a few.
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Old Sep 6, 2007 | 03:11 PM
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I've done several modifications including replacing the stock engine with the LPE 403. My drive-train remains stock. My car had been extremely reliable...no mod-related problems. I'm sure there are many excellent tuner shops but IMO always go with the best....it pays in the long run.
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Old Sep 6, 2007 | 03:17 PM
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There is always a chance or something happening. Small problems occur. Just go to a good shop who does good work and stands by it. My car has been pretty good and I still have a few other things I will be doing in the future. BAMAGOLFER is right...the wallet becomes and issue after awhile...
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Old Sep 6, 2007 | 03:17 PM
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Shorter tire life and worse MPGs.
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Old Sep 6, 2007 | 03:24 PM
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Anything that you do to a drivetrain that pushes output past what it was designed to reliably handle will affect longevity. Determining the limit is the real problem.
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Old Sep 6, 2007 | 03:33 PM
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Originally Posted by Curtis A. Franz
In the 49 years that I have been tweeking the small block with mods they always carry a level of grief with them. Rocker arms, pistons, cams, syncros, posi-clutch plates, burnt plug wires (headers)...to name a few.
there's an honest man....
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Old Sep 6, 2007 | 05:50 PM
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My C6 is a mod-machine:

A&A Supercharger kit
CORSA cat-back exhaust
custom tune
Z51 sway bars (mine is F55)
On and on and on and on

The key to it all is (a) a highly professional install and (b) a correct tune. You mentioned that you are concerned about engine reliability post-mod. That's where the tune comes in. If you, for example, installed forced induction, your installer has 2 choices: (1) tune a conservative setting for engine life or (2) tune a hell-bent-for-leather setting for max power and a short engine life. Many in the Forum choose #2 so as to get 600+ rwhp on the LS2. Your engine won't last long doing that. I chose #1.

Look at the cover of Corvette Magazine - the "916 HP" C6 on the cover looks really great. BUT, if you read the article, he's gone through 3 engine rebuilds in about 18 months. If you want a 916 hp car, be prepared for a lot of trips to the shop. Otherwise, be willing to accept less in exchange for a longer engine life.

My supercharged C6 is tuned so that temps remain close to stock. MPG is actually a little better than I saw stock. I am running 7 psi of boost. There are no ill effects on this setup. Go much higher, however, and bad things start to happen.

Good luck!
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Old Sep 6, 2007 | 06:26 PM
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I would recommend a Cat back system and a 4:10 rear and you will have a great sound and performance for the buck.
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Old Sep 6, 2007 | 09:36 PM
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Originally Posted by MNVette
My C6 is a mod-machine:

A&A Supercharger kit
CORSA cat-back exhaust
custom tune
Z51 sway bars (mine is F55)
On and on and on and on

The key to it all is (a) a highly professional install and (b) a correct tune. You mentioned that you are concerned about engine reliability post-mod. That's where the tune comes in. If you, for example, installed forced induction, your installer has 2 choices: (1) tune a conservative setting for engine life or (2) tune a hell-bent-for-leather setting for max power and a short engine life. Many in the Forum choose #2 so as to get 600+ rwhp on the LS2. Your engine won't last long doing that. I chose #1.

Look at the cover of Corvette Magazine - the "916 HP" C6 on the cover looks really great. BUT, if you read the article, he's gone through 3 engine rebuilds in about 18 months. If you want a 916 hp car, be prepared for a lot of trips to the shop. Otherwise, be willing to accept less in exchange for a longer engine life.

My supercharged C6 is tuned so that temps remain close to stock. MPG is actually a little better than I saw stock. I am running 7 psi of boost. There are no ill effects on this setup. Go much higher, however, and bad things start to happen.

Good luck!
I agree. I went with Dynotech installed APS twin-turbos 7lbs boost. No problems so far and do not expect them. If I loose a little longevity its worth it to me.
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Old Sep 7, 2007 | 09:33 AM
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Some great responses / advice here.

My thanks to all!
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Old Sep 7, 2007 | 09:51 AM
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yup!
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