RWHP gains from headers?
Thread Starter
Intermediate
Joined: Oct 2004
Posts: 40
Likes: 0
From: WA
RWHP gains from headers?
Hey guys and gals, I'm new to the forum. . . originally from fbody.com and domestic-street-scenes.com (IROC2fast4u for any who may know me). So, I've got a couple questions on headers. . .
As you can see, they'll be for an '00 FRC. The car's moderately modified as is, but I'm wondering what kind of RWHP gains I could expect to see from LTs, mids, or shorties. . . and how much work needs to be done to accomodate them.
My Dad tried to tell me not to mess with headers because the stock ehxaust manifolds on the C5 were 'almost like headers anyway, so I wouldn't see a gain.'
I don't buy it. What do you think?
Thanks for the input,
Mikey
--
'00 black FRC: Blackwing intake, GMS MAF, HPPIII, 160* stat, hi-flo water pump, borla titanium, hi-flo cats, *CAGS, *runflats, smooth air coupler, nology plug wires. G-tech say 12.3 @ 116, but we all know how accurate those are
As you can see, they'll be for an '00 FRC. The car's moderately modified as is, but I'm wondering what kind of RWHP gains I could expect to see from LTs, mids, or shorties. . . and how much work needs to be done to accomodate them.
My Dad tried to tell me not to mess with headers because the stock ehxaust manifolds on the C5 were 'almost like headers anyway, so I wouldn't see a gain.'
I don't buy it. What do you think? Thanks for the input,
Mikey
--
'00 black FRC: Blackwing intake, GMS MAF, HPPIII, 160* stat, hi-flo water pump, borla titanium, hi-flo cats, *CAGS, *runflats, smooth air coupler, nology plug wires. G-tech say 12.3 @ 116, but we all know how accurate those are
Last edited by NOZ06; Oct 2, 2004 at 07:38 PM.
Melting Slicks
Joined: Aug 2000
Posts: 2,304
Likes: 154
From: Green Bay WI
Since you already have high-flow cats, I would say conservatively 10-15 RWHP with the LT, maybe 5 with the shorties. I picked up more torque than HP with the SuperMaxx.
Are you still running the stock tune? A dyno tune would help you maximize your mods.
Are you still running the stock tune? A dyno tune would help you maximize your mods.
Pro
Joined: May 2004
Posts: 744
Likes: 0
From: St. Peters MO.
Well your Dad was correct if you only look at the stockers but there's big power gains waiting. Change to a long tube header with free flow cats and the cat back of your liking.When I did this as my first mod the increase in power was a huge sotp change.
Tech Contributor
Joined: Dec 1999
Posts: 32,910
Likes: 2,402
From: Anthony TX
CI 6,7,8,9,11 Vet
St. Jude Donor '08
I just added Stainlessworks LT headers, random tec Cat's, 3" X pipe and 3" stainlessworks mufflers. Lots more power, more torque and the sound Ohhhhhhhh Yaaaaaaaaaaaaaaaaaaaa!! 
Dyno soon!
Seat of the pants meter says 25+
I can already feel the need for the Heads and cam treatment!
BC
Dyno soon!
Seat of the pants meter says 25+
I can already feel the need for the Heads and cam treatment!
BC
Thread Starter
Intermediate
Joined: Oct 2004
Posts: 40
Likes: 0
From: WA
Thanks for the input, guys. I'm still on the stock tune (unless you count a HPPIII, but it hasn't been dyno-tuned or anything. . .). After hearing this, he's agreed that LTs are a decent investment.
The car is his and I'm helping him modify it to go through is mid-life crisis
so we'll see how it goes.
We've had some fun times/impressive kills with it since it was new, but I think he really wants a little more power. He got pretty tweaked when a lightly modded Z06 edged him out (he got a stock one by about a car 60-130 a while back) and the mod bug has bit him again
Anyways, I've heard Kooks are good. . . they're also ridiculously expensive. Any less expensive options that will still show the same gains? Any input = much appreciated!
The car is his and I'm helping him modify it to go through is mid-life crisis
so we'll see how it goes.We've had some fun times/impressive kills with it since it was new, but I think he really wants a little more power. He got pretty tweaked when a lightly modded Z06 edged him out (he got a stock one by about a car 60-130 a while back) and the mod bug has bit him again
Anyways, I've heard Kooks are good. . . they're also ridiculously expensive. Any less expensive options that will still show the same gains? Any input = much appreciated!
Team Owner
Joined: Aug 2003
Posts: 38,314
Likes: 35
Originally Posted by NOZ06
Anyways, I've heard Kooks are good. . . they're also ridiculously expensive. Any less expensive options that will still show the same gains? Any input = much appreciated!
I disagree. Kooks are very reasonably priced. You may be thinking of the LGs.
Le Mans Master
Joined: Sep 2004
Posts: 7,027
Likes: 6
From: Shiloh Ohio
Anyways, I've heard Kooks are good. . . they're also ridiculously expensive. Any less expensive options that will still show the same gains? Any input = much appreciated! [/QUOTE]
Hi here is a good deal on long tube headers $679.00, I have mine but have not installed yet, they look great.
http://ls1performanceparts.com/
[/QUOTE]Hi here is a good deal on long tube headers $679.00, I have mine but have not installed yet, they look great.
http://ls1performanceparts.com/
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Advanced
Joined: Jul 2004
Posts: 84
Likes: 0
From: Marietta GA
Originally Posted by shurite44
Hi here is a good deal on long tube headers $679.00, I have mine but have not installed yet, they look great.
http://ls1performanceparts.com/
http://ls1performanceparts.com/
Le Mans Master
Joined: Sep 2004
Posts: 7,027
Likes: 6
From: Shiloh Ohio
Sure will
Originally Posted by abailey269
I have not heard of these. Please let us know how well the install goes.
