Headers only on a supercharged car?
Thread Starter
Melting Slicks
Joined: Nov 2006
Posts: 2,463
Likes: 2
From: Santa Barbara, CA
Headers only on a supercharged car?
How much horsepower will I gain by going to 1 7/8ths headers with cats no exhaust? Otherwise stock supercharged LS2 490rwhp. I'll also be putting on a slightly smaller pulley to get the boost back to 7lbs.
Melting Slicks
Joined: Mar 2005
Posts: 2,343
Likes: 16
From: las vegas NV
you should get anywhere from 30-50rwhp from the headers. you should have it retuned after the headers. why are you adding more boost? a 7lb pully is a 7lb pully.if you are making the power you want i dont see any reason in adding more heat to the engine with the added boost just to see it actually say 7psi on your gauges
Life Time NCM #2196
Joined: Sep 2004
Posts: 82,599
Likes: 1,717
From: Converse TX
I went from TPIS Headers to AR 1 7/8 as the only change and I only saw 7 rwhp and 9 rwtq, I was expecting more and this was 3" out to the Corsa Tourings and no cats
This was done at Henderson Performance, no major changes to the tune had to be made only tweaks
This was done at Henderson Performance, no major changes to the tune had to be made only tweaks
Melting Slicks
Joined: Mar 2005
Posts: 2,343
Likes: 16
From: las vegas NV
what are TPIS headers? are they longtubes? with him going from stock headers to longtubes he should see at least 30rwhp with FI
