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Need to bump up compression a little more

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Old 09-29-2005, 11:13 PM   #1
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Its currently at 11:1

jdm b16a2 stock block
jdm b16a1 head
1 layer oem head gasket
jdm p30 pistons
skunk2 stage2 cams
toda 4-2-1
apexi ws2
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stock tb/manifold
aem cai

I wanna raise the comp up maybe .5 (only have 91 octane in cali). Should i get the head milled? new pistons?
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Old 09-29-2005, 11:15 PM   #2
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yikes...in cali i wouldnt go over 11:1 personally. Milling the head might net you a bit, but i couldnt ive you any figures.
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Old 09-29-2005, 11:31 PM   #3
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You should be fine as long as you get it tuned. A thinner head gasket might be the cheapest solution. Anthing over 11.5 on 91 is kinda risky.
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Old 09-29-2005, 11:58 PM   #4
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thinner gasket? im running a one layer oem. So is my compression right now high enough for stage 2's? i havent tuned it yet.
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Old 09-29-2005, 11:59 PM   #5
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milling head and thinner gasket = bad ways to gain compression.
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Old 09-30-2005, 12:10 AM   #6
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probably gonna have to bore it to do it safely
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Old 09-30-2005, 12:15 AM   #7
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Tune it. That will get you more gains than bumping up your compression by a few tenths.
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Old 09-30-2005, 12:18 AM   #8
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<div class='quotetop'>QUOTE(swanny @ Sep 29 2005, 11:15 PM) Quoted post</div><div class='quotemain'>
Tune it. That will get you more gains than bumping up your compression by a few tenths.
[/b][/quote]

Good input. I dunno why that wasnt my first response. Its like that dude who was trying to put his cable tranny in his 99 si when he had a hydro tranny in his other car.

The obvious answer didnt come immediately to mind.
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Old 09-30-2005, 05:47 PM   #9
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<div class='quotetop'>QUOTE(swanny @ Sep 29 2005, 09:15 PM) Quoted post</div><div class='quotemain'>
Tune it. That will get you more gains than bumping up your compression by a few tenths.
[/b][/quote]

Best advice. I'd invest in some sort of stand alone system. I'm finishing my 11.5:1 ls, and wouldn't dream of driving without a good tune. A wideband, a tablet pc, turboedit, an ostrich, a socketed pm6 and a dyno will be my car's best friends in about 2 weeks. Try tuning it and running a little more ignition advance; you'll get the power you are looking for, but look out for the smog demons.
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