gsr compression / hp
#1
09-11-2007, 06:24 AM
gsr compression / hp
i know that the CR in a stock gsr is 10:1. i'm looking forprobably about 300whp out of this engine in my lil del slow. what would be the HP gain from dropping a set of 12.5:1 cr pistons in there along w/ a moderatly built head (3 angle valve job, new high reving springs and cams.)?
#3
09-11-2007, 09:50 AM
RE: gsr compression / hp
aight i know you aren't a human dyno but let me just run this by you and see what you can come up w/...
street built head w/ 1mm oversized ferra lightweight valves, very very nice springs and retainers for high reving, set of 272's, 3 angle valve job, and a set of ITB's up top.
2.26l stroked bottom end w/ 12.5:1 compression, lightweight and knifeedged crank and a lightweight flywheel.
completely dyno tuned (probably w/ aem ems). basically as nice of a street all motor warrior you could want.
i was thinking 260-290 area?
street built head w/ 1mm oversized ferra lightweight valves, very very nice springs and retainers for high reving, set of 272's, 3 angle valve job, and a set of ITB's up top.
2.26l stroked bottom end w/ 12.5:1 compression, lightweight and knifeedged crank and a lightweight flywheel.
completely dyno tuned (probably w/ aem ems). basically as nice of a street all motor warrior you could want.
i was thinking 260-290 area?
#4
09-11-2007, 10:39 AM
RE: gsr compression / hp
Or just run a little boost, save money and hit the HP mark. Why do you want 300hp? You know what a 250whp del sol will do? GSR Swap and like 5psi on a larger turbo will give more power than you need.
#5
09-11-2007, 10:50 AM
RE: gsr compression / hp
ORIGINAL: RCJr9186
aight i know you aren't a human dyno but let me just run this by you and see what you can come up w/...
street built head w/ 1mm oversized ferra lightweight valves, very very nice springs and retainers for high reving, set of 272's, 3 angle valve job, and a set of ITB's up top.
2.26l stroked bottom end w/ 12.5:1 compression, lightweight and knifeedged crank and a lightweight flywheel.
completely dyno tuned (probably w/ aem ems). basically as nice of a street all motor warrior you could want.
i was thinking 260-290 area?
aight i know you aren't a human dyno but let me just run this by you and see what you can come up w/...
street built head w/ 1mm oversized ferra lightweight valves, very very nice springs and retainers for high reving, set of 272's, 3 angle valve job, and a set of ITB's up top.
2.26l stroked bottom end w/ 12.5:1 compression, lightweight and knifeedged crank and a lightweight flywheel.
completely dyno tuned (probably w/ aem ems). basically as nice of a street all motor warrior you could want.
i was thinking 260-290 area?
#6
09-12-2007, 07:45 AM
RE: gsr compression / hp
alrighty. Thanks for the help Marty. that's pretty much what i was looking for. so building an all motor b18 is basically just a waste unless you only want 250'ish whp. alrighty, well turbo it is. and since it's gonna be turbo'd... gotta run something decent sized 
something along the lines of a gt30r. yea, that oughta do it 
something along the lines of a gt30r. yea, that oughta do it
#7
09-12-2007, 07:52 AM
RE: gsr compression / hp
oh and Pete, i've always wanted a bad @$$ all motor car... i duno why but when i see a nice looking b-series or k20 all motor sittin in a car w/ ITB's, built and can out run an EVO.... there's just something about that that is just BADD!!!! i duno. but a turbo will do the job just fine.
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