HP estimate
Thread Starter
Burning Brakes
Joined: Aug 2008
Posts: 802
Likes: 6
From: Oro Valley AZ
HP estimate
I have a 2007 LS2 with a Halltech CAI. I had a mild tune that gave me 347 RWHP. Since, I have added a ported & polished TB, 1’ TB spacer and ZO6 NPP mufflers. What’s a best estimate of RWHP from you gurus out there? Also, what would be the next logical mod to try?
Safety Car
Joined: Sep 2006
Posts: 3,922
Likes: 4
From: Cheektowaga NY
St. Jude Donor '08
3-5rwhp with the throttle body.
I would go headers next. Kooks 1 3/4 with 3' x-pipe is what i would choose.
|441rwhp & 386rwtq|Cartek 3X cam|Vig stall|Bolt ons|Stock 2.56 gears|
|Stock compression|Cartek dyno tuned| HPTuners pro|
60ft 1.65 - 11.132@125.03mph
60ft 1.64 - 11.133@124.84mph
http://s261.photobucket.com/albums/i..._converted.flv
I would go headers next. Kooks 1 3/4 with 3' x-pipe is what i would choose.
|441rwhp & 386rwtq|Cartek 3X cam|Vig stall|Bolt ons|Stock 2.56 gears|
|Stock compression|Cartek dyno tuned| HPTuners pro|
60ft 1.65 - 11.132@125.03mph
60ft 1.64 - 11.133@124.84mph
http://s261.photobucket.com/albums/i..._converted.flv
Last edited by Tony B4; Jan 26, 2009 at 11:49 PM.
Burning Brakes
Joined: Jan 2008
Posts: 905
Likes: 0
From: BURTON MI
I'm not a gurue, the ported and polished t/b maybe 2-3 hp, the t/b spacer 0, the npp muflers 6. That should give you 355-356 rwhp. That will be pretty close. Next mod I'd consider gears or headers. Depends on your future use of the car, 1/4 mile or daily driver or whatever. Popular opinion here is mostly divided between the two. I personally have both plus h/c package.
