Opinions on my 402 setup...
03-03-2007, 10:48 AM
#1
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Opinions on my 402 setup... Hey guys, I was looking to get a widespread opinion on the 402 setup that is in the process of being built for my Z06 streetcar....
TSP 402 -12cc Mahle's, Callies crank/rods
(SCR:11.56 DCR:8.67)
ETP 215's at 59cc with .040 Cometics
Vengeance Ported Fast 90/ported LS2
240/244 .609/.612 111+3 cam
EWP
LG LT's (no cats)
Vararam/Haltech airbridge
My car has a clutch, and a slightly beefed up rear with the stock 3.42's. It will be mainly driven on the street with 10-12 tripsto the strip per year. The heads, and intake, etc.. are off my 346 that broke a ring land unexpectedly.
Jake Fusion liked the combo but reccomended the cam be a 111+1 to carry power past 6,300rpm...
Thoughts gentlemen?
Alan
TSP 402 -12cc Mahle's, Callies crank/rods
(SCR:11.56 DCR:8.67)
ETP 215's at 59cc with .040 Cometics
Vengeance Ported Fast 90/ported LS2
240/244 .609/.612 111+3 cam
EWP
LG LT's (no cats)
Vararam/Haltech airbridge
My car has a clutch, and a slightly beefed up rear with the stock 3.42's. It will be mainly driven on the street with 10-12 tripsto the strip per year. The heads, and intake, etc.. are off my 346 that broke a ring land unexpectedly.
Jake Fusion liked the combo but reccomended the cam be a 111+1 to carry power past 6,300rpm...
Thoughts gentlemen?
Alan
Last edited by wavrdr; 03-03-2007 at 08:35 PM.
03-03-2007, 08:34 PM
#4
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Power goals?
I'm not really sure...I'm trying to play it on the pesimistic side, but I am hopeful being that I have quality parts to back up the cubes....My heads flow similiar intake #'s to box stock L92's and my exhaust numbers outflow them all on a 3.9 bore with much smaller valves/chambers so my velocity should be great!
I'm hoping for 500whp with a fat area under curve, thus why I'm not going with a big stick in the 402...Basically I'm hoping the car will go solid tens with a not so great 60'.....
With my old combo I had just begun to get the bugs worked out...The car was making 470/420 on a not so friendly dyno and went 11.31 on a 1.74 60' time at nearly 1000+DA..
I'm not really sure...I'm trying to play it on the pesimistic side, but I am hopeful being that I have quality parts to back up the cubes....My heads flow similiar intake #'s to box stock L92's and my exhaust numbers outflow them all on a 3.9 bore with much smaller valves/chambers so my velocity should be great!
I'm hoping for 500whp with a fat area under curve, thus why I'm not going with a big stick in the 402...Basically I'm hoping the car will go solid tens with a not so great 60'.....
With my old combo I had just begun to get the bugs worked out...The car was making 470/420 on a not so friendly dyno and went 11.31 on a 1.74 60' time at nearly 1000+DA..
03-03-2007, 08:46 PM
#6
Originally Posted by Brian Tooley
I would try to sell the heads and buy a set of heads made for a 4.00" bore, the few hundred dollars difference it might cost will be worth it in the long run.
If you are interested in getting more power than you should level up to where it will make more power. Match that CID up with appropriate sized heads. 
03-03-2007, 09:11 PM
#7
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I did consider selling the heads but seeing as I just bought them in November I decided to run them, not to mention there are a few running AFR 205's and making great power...
I think the setup will have a great power under curve, yet not be a history making power setup...Only time will tell.
Thanks for the thoughts guys!
I think the setup will have a great power under curve, yet not be a history making power setup...Only time will tell.
Thanks for the thoughts guys!
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03-04-2007, 10:13 AM
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I really don't think that the 4.0 bore heads will yield that much more power over my 3.9 bore heads...Not to mention my "slightly" smaller runners should yield some great velocity....
