402 LS2 in Z06 finally finished
402 LS2 in Z06 finally finished Finally have finished my 402 LS2 build in my '01 Z06. Specs as follows:
AFR 225's
eagle/diamond bottom
11.2 static comp
Cam-239/248 .649/.615 110LSA +1
1 3/4 LG headers, no cats
Morel lifters
Stock rockers
Fast 90/LS2 TB unported
1 3/4 LG headers, no cats
Longblock built by Dave Deluca,"Sled28"
Select help/tuning by Phil "Roadrebel"
Installed by myself
These guys were great to work with and I would do it all over again! Car is a brute, plain and simple, the cold prevents much traction, but is a great step up from my previous H/C setup. The 110 cam was a bit tough to get idling, perhaps a 111 would be better. In the coming cold months, the FAST 90 intake will be ported and an electric water pumphopefully as well (new MT 18" DRs when they come out, too)
Perhaps a stage or two of spray later!!
AFR 225's
eagle/diamond bottom
11.2 static comp
Cam-239/248 .649/.615 110LSA +1
1 3/4 LG headers, no cats
Morel lifters
Stock rockers
Fast 90/LS2 TB unported
1 3/4 LG headers, no cats
Longblock built by Dave Deluca,"Sled28"
Select help/tuning by Phil "Roadrebel"
Installed by myself
These guys were great to work with and I would do it all over again! Car is a brute, plain and simple, the cold prevents much traction, but is a great step up from my previous H/C setup. The 110 cam was a bit tough to get idling, perhaps a 111 would be better. In the coming cold months, the FAST 90 intake will be ported and an electric water pumphopefully as well (new MT 18" DRs when they come out, too)
Perhaps a stage or two of spray later!!
congrats man cant wait till i get mine
on a side note check out the afr at 5200 its is 12:1 and 13:1 but the graph shows like no HP diffrence......
weird why is this???
on a side note check out the afr at 5200 its is 12:1 and 13:1 but the graph shows like no HP diffrence......
weird why is this??? Last edited by camarokid94; Nov 18, 2006 at 10:33 PM.
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I've never seen back to back tests on 1 3/4 vs 1 7/8 on 400+ cubes. Anyone know of such a test? It would have to be at least 12hp for me to consider going to 1 7/8. I also am keeping the stocker Ti Muffs, could consider cut-outs though...
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From: NC, Charlotte / SC, RockHill
Originally Posted by Ionize
I've never seen back to back tests on 1 3/4 vs 1 7/8 on 400+ cubes. Anyone know of such a test? It would have to be at least 12hp for me to consider going to 1 7/8. I also am keeping the stocker Ti Muffs, could consider cut-outs though...
Originally Posted by Ionize
I've never seen back to back tests on 1 3/4 vs 1 7/8 on 400+ cubes. Anyone know of such a test? It would have to be at least 12hp for me to consider going to 1 7/8. I also am keeping the stocker Ti Muffs, could consider cut-outs though...
it was on my 408. it picked up 5rwhp peak but pulled about another 500rpm before dropping off. it lost a lot of tq down low. about 30ftlbs.
1 7/8's are a waste on a street car. no way would I recommend them unless your spraying and racing a lot.
Thats about what I figured the gain would be--not too much unless it was a solid roller w/ spray, 7300+ rpms, etc. The LG Pro longtubes w/o cats are one of the best 1 3/4 set of pipes out there I think, not getting rid of them for now. The last semi-easy gains on motor I think I'll find are with the FAST 90 and TB to be ported over the winter, along with an electric water pump, and cutouts perhaps. Then to put it to the ground in a Z06, the toughest thing of all....
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Joined: Jul 2005
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From: NJ
Originally Posted by Ionize
I've never seen back to back tests on 1 3/4 vs 1 7/8 on 400+ cubes. Anyone know of such a test? It would have to be at least 12hp for me to consider going to 1 7/8. .
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iTrader: (11)
Joined: Jan 2005
Posts: 1,191
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From: NC, Charlotte / SC, RockHill
Originally Posted by prostock_bigblock
I've seen couple of dynos before and after. and all i can say that the minimum gain i saw was 9rwhp and the max was 30rwhp.
Originally Posted by Ionize
I've never seen back to back tests on 1 3/4 vs 1 7/8 on 400+ cubes. Anyone know of such a test? It would have to be at least 12hp for me to consider going to 1 7/8. I also am keeping the stocker Ti Muffs, could consider cut-outs though...
