Vette needs more spunk. Need help.
Thread Starter
6th Gear
Joined: Nov 2006
Posts: 6
Likes: 0
Vette needs more spunk. Need help.
So my dad has a 97 corvette automatic. The only modification he has is an after market air filter. He wants to be able to keep up with me at the track.
I figure his two best options are to either get a dyno tune and flash with more aggressive timing, or get a cat-back exhaust.
I'm leaning more towards the dyno tuning, because there are so many types of exhausts out there it's hard to decide. I've heard some crappy ones even rob horsepower.
Anyway, heres the video of me kicking his butt.
I figure his two best options are to either get a dyno tune and flash with more aggressive timing, or get a cat-back exhaust.
I'm leaning more towards the dyno tuning, because there are so many types of exhausts out there it's hard to decide. I've heard some crappy ones even rob horsepower.
Anyway, heres the video of me kicking his butt.
Team Owner
Joined: Sep 2007
Posts: 21,915
Likes: 61
From: Miami Beach FL
Advanced
Joined: Jun 2003
Posts: 52
Likes: 0
From: Roseville MI
gear won't change HP
A gear change won't change HP, but it will take .5 seconds off the vehicles quarter mile times. I had an FRC and went from a 345 to a 410 and cut .5 off my quarter mile. I could have done faster with better rubber. Best bang for the buck and no internal engine change. With the auto you need to update the computer ASAP because RPM controls the shift points and a gear change canges the speed per RPM.
Premium Supporting Vendor
Joined: Sep 2008
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I always recommend a set of long tubes for the LS motors. They respond really well to them and make the car sound a little better! Gears are a great swap but can get pricey because of the IRS. Good luck with it!
Drifting
Joined: Dec 2004
Posts: 1,706
Likes: 5
From: Toronto Ontario
How much is he willing to spend to go faster?
It's easy to say something like a supercharger or a heads and cam package would be a great way to go, but the cost on doing so if high. I just did a Yank SS3200 converter, a 3.42 diff and AR LT headers with a tune and couldn't be happier. Totally different beast now!
It's easy to say something like a supercharger or a heads and cam package would be a great way to go, but the cost on doing so if high. I just did a Yank SS3200 converter, a 3.42 diff and AR LT headers with a tune and couldn't be happier. Totally different beast now!
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Drifting
Joined: Nov 2001
Posts: 1,319
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From: Lincoln Nebraska
If it has the 2.72 diff you NEED to change it! That's what I had stock and I went to a 3.42 and converter, big change. Watch for a used 3.42 diff, they come up in the used parts section often. It will make a huge difference but if funds permitting do the converter at the same time to save on the labor later!
Racer
Joined: May 2009
Posts: 399
Likes: 3
From: jacksonville fla
If it has the 2.72 diff you NEED to change it! That's what I had stock and I went to a 3.42 and converter, big change. Watch for a used 3.42 diff, they come up in the used parts section often. It will make a huge difference but if funds permitting do the converter at the same time to save on the labor later!
Could not agree more. Excluding NOS, a converter like the Yank SS3200 or SS3600 and 3.42 or 3.73 gears are the best bang for the buck on an A4 hands down. A high stall converter allows your engine to instantly spool up higher in the RPM band were your engine is making much more HP. It will also give you higher shift extentions. The Yank SS series converters have excellent street manners. BTW what 1/4 mile times did you and your dad run in the video. You spanked him pretty good LOL
Last edited by mitchell c; Jul 16, 2010 at 12:11 AM.
Racer
Joined: May 2009
Posts: 399
Likes: 3
From: jacksonville fla
With a best of 13.9 I think your dads car has 2.73 gears and definately needs a gear swap and a hi stall T/C. With a good converter and gears, your dads car should run mid 12s and be more than a match for you. If he does T/C and gears he will need a tune to tweak shift points & shift firmness & drag radials to control wheel spin.
Last edited by mitchell c; Jul 17, 2010 at 08:10 AM.
Team Owner
Joined: Sep 2007
Posts: 21,915
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From: Miami Beach FL
Racer
Joined: May 2009
Posts: 399
Likes: 3
From: jacksonville fla
Call Horsepower Sales in Pompano Beach ask for Roger. Or if you're closer to N Fla. call Mike Norris at Next Level performace. Or you can go the mail order tune route. Send your computer to Carmen at the Vette Doctors or Cartek.
Last edited by mitchell c; Jul 18, 2010 at 06:13 AM.
