What gains should I see?
Thread Starter
11 Second Club
Joined: May 2002
Posts: 710
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From: Peoria, AZ
What gains should I see? Well, I'm getting the PRC 2.5, 5.3 heads amd installing a built tranny with a YANK Extreme 3600 stall.
What rwhp should I see over my old setup. I'm hoping for 400 rwhp
What rwhp should I see over my old setup. I'm hoping for 400 rwhp
11 Second Club
Joined: Nov 2001
Posts: 215
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From: Cave Springs, GA
Your numbers should be close to mine:
https://ls1tech.com/forums/dynamometer-results-comparisons/335231-a4-3500-stall-12-bolt-w-prc-heads-230-232-cam.html
Before the heads mine made 365 rwhp unlocked. After the heads it made 402 rwhp & 419 rwtq unlocked and 430/391 locked.
I have the same heads, a little more cam & crank pulley, but also have a 12 bolt, very inefficient converter & midlength headers... Since you have true longtubes & less drivetrain loss from the stock 10 bolt your numbers should be pretty close. I'll guess 390-400 rwhp unlocked.
https://ls1tech.com/forums/dynamometer-results-comparisons/335231-a4-3500-stall-12-bolt-w-prc-heads-230-232-cam.html
Before the heads mine made 365 rwhp unlocked. After the heads it made 402 rwhp & 419 rwtq unlocked and 430/391 locked.
I have the same heads, a little more cam & crank pulley, but also have a 12 bolt, very inefficient converter & midlength headers... Since you have true longtubes & less drivetrain loss from the stock 10 bolt your numbers should be pretty close. I'll guess 390-400 rwhp unlocked.
Last edited by EvilLS1; Jun 23, 2005 at 04:19 PM.
Thread Starter
11 Second Club
Joined: May 2002
Posts: 710
Likes: 0
From: Peoria, AZ
Originally Posted by EvilLS1
Your numbers should be close to mine:
https://ls1tech.com/forums/showthread.php?t=335231
Before the heads mine made 365 rwhp unlocked. After the heads it made 402 rwhp & 419 rwtq unlocked and 430/391 locked.
I have the same heads & a little more cam, but since you have true longtubes & less drivetrain loss from the stock 10 bolt your numbers should be pretty close. I'll guess 390-400 rwhp unlocked.
https://ls1tech.com/forums/showthread.php?t=335231
Before the heads mine made 365 rwhp unlocked. After the heads it made 402 rwhp & 419 rwtq unlocked and 430/391 locked.
I have the same heads & a little more cam, but since you have true longtubes & less drivetrain loss from the stock 10 bolt your numbers should be pretty close. I'll guess 390-400 rwhp unlocked.
Yeah, I did my 362 rwhp with a shot tranny and some say an extra 10 to 15 rwhp if the old tranny was good.
11 Second Club
Joined: Nov 2001
Posts: 215
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From: Cave Springs, GA
Originally Posted by camaro98z28
Yeah, I did my 362 rwhp with a shot tranny and some say an extra 10 to 15 rwhp if the old tranny was good.
