Performance Tune
Thread Starter
Cruising
Joined: Nov 2005
Posts: 13
Likes: 0
Performance Tune
Just had some after market goodies put on my 02 LS1 by the local Chevy dealership which were; a Breathless Performance Cold air inntake, a Corsa Sport exhaust, and an X-pipe. They have about two or three guys at the dealership who do performance mods. The guy that worked on my car told me the next thing I should do is a computer retune by GM. I asked him if he meant a dyno-tune, and he said no. He further said the retune would get me another 20 or so horsepower. Does this sound right? I asked him if they fit another computer to the car and he said that it was just a re-tune. The cost is $350.00. Is it worth it. Anyone do it to theirs?
Le Mans Master
Joined: Feb 2002
Posts: 5,970
Likes: 20
From: San Marcos Texas
a retune is not required for the mods you have. But a good dyno tune will net you 15-20hp more even on a stock car. If you are planning on doing more mods soon wait and do it later... 
Le Mans Master
Joined: Feb 2002
Posts: 5,970
Likes: 20
From: San Marcos Texas
No the hand helds are just a generic tune. Not worth it. I would just ask around and find a good local tuner. Our local tuner only charges $300 for a Dyno tune and then $100 for a retune later on when you do more mods... 
There is usually a good tuner within driving distance. Usually the Camaro guys know where they are...
There is usually a good tuner within driving distance. Usually the Camaro guys know where they are...
Pro
Joined: Jul 2005
Posts: 671
Likes: 16
From: Plano TX
Originally Posted by chriswtx
a retune is not required for the mods you have. But a good dyno tune will net you 15-20hp more even on a stock car. If you are planning on doing more mods soon wait and do it later...
Add more mods, Headers, Heads, Cam. Then retune on Dyno. Most Tuners give you a serious discount if yu have them install the parts. And installation is probably cheaper than a Stealership. Just my 2 cents.
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Team Owner
Joined: Mar 2005
Posts: 20,933
Likes: 905
From: salem OR
Originally Posted by chriswtx
a retune is not required for the mods you have. But a good dyno tune will net you 15-20hp more even on a stock car. If you are planning on doing more mods soon wait and do it later...
first pull
A dyno tune netted 366.9 with the Halltech stinger
Melting Slicks
Joined: Feb 2001
Posts: 2,804
Likes: 358
From: Northville, MI
With what you have done, a scan tune might get you a few more ponies and possibly better low and mid range power. A scan tune involves driving the car for 20-30 miles under varied driving conditions. This will give the tuner info on accel/decel/idle and some info on WOT. With the intake you are getting more cooler/dense air into the intake and it will yield more ponies, you want to make PCM is taking best advantage in the low and medium acceleration areas and the X-pipe will do a better job of scavaging the exhaust--worth about 5 hp.
Melting Slicks
Joined: Aug 2002
Posts: 3,164
Likes: 0
From: Lutz FL
I'd at least wait until you have headers before you do the tuning. As others suggested, go get it dyno tuned...Not only will you be able to get more power (out of the tune), but you will be able to make sure it is safe as well (your A/F, knock, etc)
Le Mans Master
Joined: Sep 2004
Posts: 7,027
Likes: 6
From: Shiloh Ohio
Originally Posted by tpdvette
When I asked him if I should get a dyno-tune, he told told me not at this point, with the mods that I have done.
The only thing I don't agree with him on is if you are going to tune it anyway's you might as well go somewhere with a dyno. If he is going to charge you 350 most places only charge 400 for a dyno tune, and usually 100 if you need re tuned.