what are the average gains reguarding adding long tube headers?? im thinking about getting some pacesetters with ory. Do all headers gain the same power, or are there some brands that seem to achieve more power?? thanx

 

a stock or close to stock car, 15-20 hp would be the average gains.
for the most part, all headers will give equal gains, but some are built better then others.

 

I don't care what you hear from anyone else. I have dona alot of research on here & other sites to find this out myself. All LT's make right at about the same amount of power & torque. They differ by less then 10hp. Many might try to argue, but I don't care. These gains are based off of STOCK LS1 motors. Now if you have any motor mods you could easily see better gains. This is where people leave out the important information. I have had guys argue that they got 40+hp out of a header install. Then after arguing the point was brought up that they had other supporting mods. This will indead effect your gains. In the end the decision is all on you. Either get a good coated set from Pacesetter(for quality & fitment reasons) or go stainless & get QTP or KOOKS. Granted some of the other smaller named brands have had comlaints of crappy flanges, exhaust leaks, & so forth. Your best bet is to decide your current goals for the motor & car. Then just research whatever brands you think you would like to go with. Good Luck in your decision.

 

I am satisfied with my Pacesetter LT's so far

 

BIG_MIKE2005 said it best. I have the pasecetter, like them but they will end up rusting in the long run. either get the pasecetters because of cost or get the kooks or qtp's as they will last longer

 

Well, I suppose it won't hurt to mentioned that LT headers were the first mod I put on my ZO6, a month after I bought it, March 2002. I got a lot more than 10 Hp by measurement.

I put a set of Lingenfelter long tube headers 1 3/4 inch diamter tubes (these are made by Billy Boat but available only through Lingenfelter -- much longer than the B&B short tubes avaialble everywhere).

After tuning the PCM, the engine picked up 15 SAE-adjusted standard temp & humid HP (372 vs 357 RWHP). More important though it picked up a lot of low end torque, a max increase of nearly 25 ft lb at 2800 RPM.

Now that I have a 427 in the car I have 1-7/8 inch Kooks LT on it and have never run the car without them so i have no idea how much difference they make.

 

Not all headers are created equal. All have different designs and materials. SOme have more than others. A turbulance spike, ported flanges, cleaner welds, merge collectors and primary tube size. Then there is the y pipe. Is it crushed and how it merges. When you add up the differences you will seen noticable gains. So IMO the high end ones will make more power.

 

In my sig are the gains I got going from completely stock exhaust to Pacesetter longtubes, TSP ORY, and the Hooker catback. This is without a tune though, which is needed to reach the full potential.

Pretty much I gained 15.53rwhp and 17.75rwtq. The gain was across the board though, I would post the before/after graph, but it's too large. I can email it to someone that can make it smaller though....

 

I went from stock exhaust to Pacesetter lt's, ORY and Hooker catback. Gained 25rwhp and 24rwtq, that is untuned.

 

i went from i gained a bit. I never baselined before the headers, but headers with no tune was 311, after tune i hit 331. And tq hit 345, i dont remember what it was prior.

 

-in a "GM Hightech Performance" article they put on headers and a cat back, i forgot what brands but they dynoed around 350-355 rwhp, i cant remember the tq either, do a search

 

with my Jet Hot Headers, ORY and a lid after LS1 edit tune I made 335 rwhp / 350 rwtq. Mine is a '98 so I dont' have LS6 intake.

 

i dont think the power gains are important.
what do they do at the track is what i look at.
2-3 tenths is pretty common without cats.

 

I gained 25hp/25tq at the wheels from my Flowtech's.

 

any one have any gains with bbk 1 3/4 shorties?

 

"cough" Longtubes "cough"

We can do them in my garage. I can con Gary into helping & you buy the Pizza.

I gained 23rwhp & 15rwtq from kooks lt headers.

 

303/325 stock....Pacesetters, ORYP and pulley went to 335/349 with stock cat back. Added lid and and S3 and picked up 1hp/1tq

 

lol, I gained 2rwhp & 2rwtq from the lid and nothing from my TSP ported TB.

 

wow, so are lids only good with no other mods? I always thought that they were good for up to 15rwhp. Also, I thought ported TB's were usually worth at least 6rwhp.

Were the dyno pulls done under the same conditions?

 

My car ran 13.0@108 with bolt-ons/nittos/4.10's/no LS6 intake.After kooks/ORY/Magnaflow catback I got it down to 12.5@111.Learning to drive the car better may have accounted for a tenth or two.