[Z06] WCCH-X/Widow before and after headers/E85 dyno
#1
Racer
Thread Starter
WCCH-X/Widow before and after headers/E85 dyno
Some of you may remember a thread I started a while back about my H/C results:
http://forums.corvetteforum.com/c6-z...x-results.html
Well I finally got some headers on there and had it tuned on E85. Setup now is:
WCCH-X heads milled .030
Widow cam
Halltech MF103
Stainless Works 1 7/8 headers with gutted cats
85lb. injectors
E85
Peak gains after the headers/E85 were 45rwhp and 48rwtq but the gains under the curve were pretty crazy. Down low I picked up almost 100rwtq! The car was dyno'd in 109 degree Phoenix weather so when it cools off outside I'm sure the numbers will come up a little. The dyno numbers don't concern me because the car pulls like a monster now. Now I know what all the fuss is about H/C C6Z's. Moral of the story: Don't do a big *** heads/cam package without headers
Big thanks to Joe and the crew at CPR. Joe has been helpful throughout the entire build and responds almost instantly to whatever questions I've had, and I've had a LOT. If you need LS work done in AZ, I recommend you check them out.
http://forums.corvetteforum.com/c6-z...x-results.html
Well I finally got some headers on there and had it tuned on E85. Setup now is:
WCCH-X heads milled .030
Widow cam
Halltech MF103
Stainless Works 1 7/8 headers with gutted cats
85lb. injectors
E85
Peak gains after the headers/E85 were 45rwhp and 48rwtq but the gains under the curve were pretty crazy. Down low I picked up almost 100rwtq! The car was dyno'd in 109 degree Phoenix weather so when it cools off outside I'm sure the numbers will come up a little. The dyno numbers don't concern me because the car pulls like a monster now. Now I know what all the fuss is about H/C C6Z's. Moral of the story: Don't do a big *** heads/cam package without headers
Big thanks to Joe and the crew at CPR. Joe has been helpful throughout the entire build and responds almost instantly to whatever questions I've had, and I've had a LOT. If you need LS work done in AZ, I recommend you check them out.
Last edited by SlowVet05; 09-07-2013 at 02:46 PM.
#5
Drifting
I just got my WCCH-X heads put on and I have the widow cam/headers/Halltech intake/Bullet exhaust and my car made almost the same numbers as yours. Mine made 550/490. Only have 91 octane here in Oklahoma.
#8
#10
#12
Racer
Thread Starter
#13
Team Owner
That's what matters
#16
Supporting Vendor
at his power level no but around 575 rwhp they start to run out of pump. the walbro 450 is a great replacement.