good luck on the other mods
Dyno
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
That is really good results for Stock exhaust manifolds and stock cats and H-pipe! and stock LS1 Heads 
Looks like it made 12 PSI of Boost, not to shabby!
On the heads have you changed the springs or plan too?
Since the stock springs on the LS1 (241) heads are really inadequate for high Boost, it looks as if you do change the springs you will not drop off so soon and go beyond the 6350+ or 6400 RPM now!
Either way be careful and enjoy!
Thanks,Matt
Looks like it made 12 PSI of Boost, not to shabby!
On the heads have you changed the springs or plan too?
Since the stock springs on the LS1 (241) heads are really inadequate for high Boost, it looks as if you do change the springs you will not drop off so soon and go beyond the 6350+ or 6400 RPM now!
Either way be careful and enjoy!
Thanks,Matt
Thread Starter
Burning Brakes
Joined: Mar 2013
Posts: 949
Likes: 34
From: La Junta Colorado
It is only 10lbs of boost. If you look close at the boost line you will see it hiccuped.
The dyno dropped tach and miss read the boost at the very end.
Stock manifolds, stock heads, stock cats.
Just borla cat back.
I have not touched the heads. I will not change the springs. If I get into that
I will replace the cam and heads.
I plan to drive it like this for a while and save up for a new clutch then see if it needs more.
I really want over 600 hp. But i kinda hope I am happy with this power level for a while.
I want to work on stereo, breaks and suspension before any more engine upgrades.
Rev limiter is around 6200, and is the cause for the drop off.
The guy doing the tune mentioned that. He thought it was 65 or 6700 not 6200.
The dyno dropped tach and miss read the boost at the very end.
Stock manifolds, stock heads, stock cats.
Just borla cat back.
I have not touched the heads. I will not change the springs. If I get into that
I will replace the cam and heads.
I plan to drive it like this for a while and save up for a new clutch then see if it needs more.
I really want over 600 hp. But i kinda hope I am happy with this power level for a while.
I want to work on stereo, breaks and suspension before any more engine upgrades.
Rev limiter is around 6200, and is the cause for the drop off.
The guy doing the tune mentioned that. He thought it was 65 or 6700 not 6200.
Last edited by 2ooo-C5; May 4, 2013 at 09:49 AM.
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I'd be happy with those numbers on my car. Congrats and enjoy that ride.
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