Any difference in performance......?
Thread Starter
Le Mans Master
Joined: Jun 2004
Posts: 7,155
Likes: 154
From: The Arid Sunny Desert
Any difference in performance......?
Going From:
1) TPIS Headers, X-Pipe & Stock Cats to Kooks LT's with their high flow cats & X-Pipe.
2) LS6 intake manifold & stock TB to FAST 90mm intake & NW 90mm TB.
3) 3.42's to 3.90's.
All on A4 heads/cam car with close to 400 peak RWHP before changes. I'm hoping that I will feel a "real world" change in performance in the seat of my pants but that will also translate into better timeslips as well. Best ever run prior to these changes was 12.20 @ 115.5 mph on sstreet tires. Don't know if I'll ever see that time on street tires again, unless maybe when they're brand new.
Vette Doctors doing all the work including custom PCM tuning.
1) TPIS Headers, X-Pipe & Stock Cats to Kooks LT's with their high flow cats & X-Pipe.
2) LS6 intake manifold & stock TB to FAST 90mm intake & NW 90mm TB.
3) 3.42's to 3.90's.
All on A4 heads/cam car with close to 400 peak RWHP before changes. I'm hoping that I will feel a "real world" change in performance in the seat of my pants but that will also translate into better timeslips as well. Best ever run prior to these changes was 12.20 @ 115.5 mph on sstreet tires. Don't know if I'll ever see that time on street tires again, unless maybe when they're brand new.
Vette Doctors doing all the work including custom PCM tuning.
Last edited by Laguna Blu; Sep 11, 2004 at 10:13 PM.
Thread Starter
Le Mans Master
Joined: Jun 2004
Posts: 7,155
Likes: 154
From: The Arid Sunny Desert
Carmen at Vette Doctors said that I will notice a big difference in the gear change. The intake & exhaust is about as free-flowing as you can get on a car with cats, so to me that is justified. I like a 2400 stall converter since I like throttle response at low RPM's. I don't want to have to be at 3000+ RPM's before the car will move since most of my cruising is done at below 2000 RPM's. I believe that the car will be as modified as it can get without going with a supercharger or nitrous.
Le Mans Master
Joined: Aug 2000
Posts: 5,294
Likes: 2
From: Suffolk, Long Island NY
Originally Posted by Pewtavert
Carmen at Vette Doctors said that I will notice a big difference in the gear change. The intake & exhaust is about as free-flowing as you can get on a car with cats, so to me that is justified. I like a 2400 stall converter since I like throttle response at low RPM's. I don't want to have to be at 3000+ RPM's before the car will move since most of my cruising is done at below 2000 RPM's. I believe that the car will be as modified as it can get without going with a supercharger or nitrous.
