Halltec + Corsa = Nothing...
Thread Starter
Drifting
Joined: Aug 2004
Posts: 1,915
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From: Alton/Godfrey IL
Halltec + Corsa = Nothing...
Istalled the Corsa indy's a while back on my 00 and raced my bud's 99 on a closed road and we were dead even. Added the halltech and still dead even. Anyone that thinks the exhaust and the air intake gives you anything performance wise is crazy. So not true. Just wanted the people that are thinking about buying these mods for performance know. Don't waste your money if that's what you are looking for. Headers would have been a much better option.
Race Director
Joined: Dec 2000
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From: San Diego CA
Check my sig. I gained 12+ RWHP with the combo. Granted, the extra HP is probably best experienced at the drag strip or on a top-speed run, but the HP gain is real. I'll bet if you add cold air, you'd see another boost in the 1/4-mile.
Pro
Joined: Jul 2004
Posts: 650
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From: Southern California CA
Stock C5's, sans Z06's, are not very fast cars IMO. The exhaust does little, while the air intake does do a bit more. A 15 rwhp increase is not anything to write home about. My best performance mod that made a very noticeable difference, and is about the same cost as a cat back/intake system, was gears. Otherwise, get ready to spend money on H/C, SC, N20, etc. The Z06 is the best way to go stock.
Team Owner
Joined: Mar 2002
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From: Queens, New York Life begins at 183 mph....
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Dyno numbers don't lie but then again, 10-12 hp gains can hardly be felt in everyday driving and will only slightly decrease your 1/4 mile times. Weather or track conditions could probably the same results. The stock exhaust is as good as any aftermarket, dyno hp wise, its the sound that you pay for. If you want a dramatic difference, headers or a cam package are the way to go but it costs $$$$. If you want to spend under 500 bucks, an air filter is the way to go.
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Joined: Aug 2002
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From: Addison TX
Originally Posted by LiquidDI
Istalled the Corsa indy's a while back on my 00 and raced my bud's 99 on a closed road and we were dead even. Added the halltech and still dead even. Anyone that thinks the exhaust and the air intake gives you anything performance wise is crazy. So not true. Just wanted the people that are thinking about buying these mods for performance know. Don't waste your money if that's what you are looking for. Headers would have been a much better option.
The GM computer typically richens the car when you start moving more air, resulting in a much richer AF ratio that can cost you HP.
I would bet if the cars AF ratio was brought back to 12.8-13 you would see a nice increase.
We recently had a out of state Z06 with headers, cold air intake and exhaust that only made 342 RWHP before it was tuned, the AF ratio was low 10s.
The best bamg for the buck mod on these cars is a QUALITY dyno tune.
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Melting Slicks
Joined: Jun 2004
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From: NC
Originally Posted by LiquidDI
Istalled the Corsa indy's a while back on my 00 and raced my bud's 99 on a closed road and we were dead even. Added the halltech and still dead even. Anyone that thinks the exhaust and the air intake gives you anything performance wise is crazy. So not true. Just wanted the people that are thinking about buying these mods for performance know. Don't waste your money if that's what you are looking for. Headers would have been a much better option.
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From: Schaumburg IL
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Originally Posted by nextphasemarko
Cold air intake and exhuast are not going to put you a car length in front of a similar powered car. Especially when you are talkin' about an M6. The intake and exhaust will help as you add more mods to the equation. But i do agree, some gears or headers will give you more performance.
and most important, a good tune to get the most out of the mods.
Instructor
Joined: Jul 2004
Posts: 108
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From: Utah
If you can't find a tuner you like then the Predator is an option. Ive got Halltech (Cold-air), Corsa pace car, and they changed the sound more than the SOP feel from the car. But the Predator re-flash that made a difference.
Le Mans Master
Joined: Sep 2003
Posts: 5,374
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From: Jacksonville Florida
Adding mods without having it tuned and expecting results just doesn't compute. It's the combination of mods plus the tuning to maximize what is on your car that provides the performance gains.
A good tuner can improve a stock car's performance even without any mods.
A good tuner can improve a stock car's performance even without any mods.
Safety Car
Joined: Jan 2004
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From: Dallas TX
Originally Posted by CAJUNY2KC5
Adding mods without having it tuned and expecting results just doesn't compute. It's the combination of mods plus the tuning to maximize what is on your car that provides the performance gains.
A good tuner can improve a stock car's performance even without any mods.
A good tuner can improve a stock car's performance even without any mods.
Thread Starter
Drifting
Joined: Aug 2004
Posts: 1,915
Likes: 2
From: Alton/Godfrey IL
Originally Posted by CAJUNY2KC5
Adding mods without having it tuned and expecting results just doesn't compute. It's the combination of mods plus the tuning to maximize what is on your car that provides the performance gains.
A good tuner can improve a stock car's performance even without any mods.
A good tuner can improve a stock car's performance even without any mods.
Tune it is then! I need to get on the phone. Thansk guys
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Bolt-on gains. With tuning and dyno....
Read 'em and weep
http://forums.corvetteforum.com/showthread.php?t=948656
Read 'em and weep
http://forums.corvetteforum.com/showthread.php?t=948656
Last edited by WellAdjusted; Nov 23, 2004 at 06:28 PM.
Team Owner
Joined: Aug 2003
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Originally Posted by yellow viking
Stock C5's, sans Z06's, are not very fast cars IMO. The exhaust does little, while the air intake does do a bit more. A 15 rwhp increase is not anything to write home about. My best performance mod that made a very noticeable difference, and is about the same cost as a cat back/intake system, was gears. Otherwise, get ready to spend money on H/C, SC, N20, etc. The Z06 is the best way to go stock.
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You have made some gains in HP, just not enough to make it a difference between the two cars. Like others have said, get the tune and/or put a set of headers on, and you should pull him.