02' C5 Z06 788 rwhp / 649 rwtq
08-17-2007, 11:34 PM
#1
9 Second Club
Thread Starter
Join Date: Nov 2001
Location: Bay Area, CA
Posts: 1,445
Likes: 0
Received 0 Likes
on
0 Posts
02' C5 Z06 788 rwhp / 649 rwtq Basic run down of the car.
Iron 402 -18 CC pistons
ET LS7 4.0" heads
custom cam
LG headers 1-3/4 (choking)
magnaflow catback 2.5" (choking)
Vortech YSI ~15psi
pump gas 91 octane.
SD two bar tune.
twin fuel pumps that barely supplied enough fuel.
I was expecting a little more out of this setup, but I feel the exhaust is holding us back quite a bit, as there is some boost stacking going on. Notice the power increase flatten out at 6200, this is where IATs sky rocket 40 over ambient.
Iron 402 -18 CC pistons
ET LS7 4.0" heads
custom cam
LG headers 1-3/4 (choking)
magnaflow catback 2.5" (choking)
Vortech YSI ~15psi
pump gas 91 octane.
SD two bar tune.
twin fuel pumps that barely supplied enough fuel.
I was expecting a little more out of this setup, but I feel the exhaust is holding us back quite a bit, as there is some boost stacking going on. Notice the power increase flatten out at 6200, this is where IATs sky rocket 40 over ambient.
08-18-2007, 10:26 AM
#4
08-18-2007, 07:11 PM
#6
9 Second Club
Thread Starter
Join Date: Nov 2001
Location: Bay Area, CA
Posts: 1,445
Likes: 0
Received 0 Likes
on
0 Posts
Its a LS7 intake manifold.
I'd like to see at least 1-7/8s headers in this car with 3" all the way out, I'd like to see this car lose 2 psi and gain 50 rwhp.
I'd like to see at least 1-7/8s headers in this car with 3" all the way out, I'd like to see this car lose 2 psi and gain 50 rwhp.
Trending Topics
08-20-2007, 09:41 AM
#10
Staging Lane
iTrader: (1)
Join Date: Jul 2003
Location: San Ramon, ca
Posts: 76
Likes: 0
Received 0 Likes
on
0 Posts
The cam is a hydraulic roller. It was spec'd by nick and ETP. The car runs very hard and drives GREAT! We are talking about going with some 1 7/8 headers to breathe easier and drop the boost a little.
-matt
-matt
08-21-2007, 09:24 AM
#14
8 Second Club
iTrader: (18)
Join Date: Oct 2002
Location: Waterloo, Ontario
Posts: 2,609
Likes: 0
Received 0 Likes
on
0 Posts
I wonder what's killing power-no offense but those kind of #'s are what most people make out of 346's with stock ported heads. I run the Factory Ti's on my car to keep the noise down so I'm sure the magnaflows outlfow them? I would of thought that the torque would of been much higher? What size pulley is on the head unit? Something must be off-maybe the cam specs?
