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Old 06-21-2008, 01:46 PM   #1
SL,UT_STI
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Member#: 161458
Join Date: Oct 2007
Chapter/Region: RMIC
Location: Draper
Vehicle:
1999 BLK 2.5RS
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Default wondering what my compression ratio will be

i know this is a really over done question but i am very new to building a motor... i blew the ringlands on my motor and now need to buy in pistons. im going with JE pistons/eagle rods which i believe have a 8:5:1 compression ratio but i will be using stock STI heads with crower stage 2 cams and a 1mm thick HG.. will my compression be to high to run adiquet boost or should i be fine.. i know most people will say to get head work done but i dont have the funds for that . i was not planning on building my motor just yet

any advise would be great to know

thanks
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Old 06-22-2008, 02:03 AM   #2
tplumsti
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thicker head gasket = lower compression
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Old 06-22-2008, 07:22 PM   #3
SL,UT_STI
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ya i was told that by some people but i also thought that stock sti's CR is 8:2:1

so im just wondering if my setup will be safe to run high boost 20psi or so (gt4088r)
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