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#1
04-05-2005, 11:29 PM
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lower compression ratio?
I apologize in advance if this question has already been answered, I couldn't find it. I saw the Hahn turbo kit for the N/A GS and it said that the boost is 8. How can I lower my compression ratio so that I can run a higher boost? My 420A engine has a 9.5 ratio and I am hoping to get it closer to 8.5. A friend told me that is a good number to run a lot of boost. Or is this all just one bad idea? Thanks guys.
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1996 Eclipse GS 5 spd. - stick shift = more fun AEM V2 intake Chrome headers Magnaflow tail pipe Tails 
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#2
04-06-2005, 12:03 AM
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Re: lower compression ratio?
You need to rebuild with lower comp pistons.
__________________
Blowing motors since 2005.  1995 Eclipse GS 5 Speed(White) 1995 Eclipse GSX 5 Speed(Silver) Need a file hosted? IM me. For Sale:Fidanza Flywheel, 7 Bolt AWD $120 Will take trades too.Quote:
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#3
04-06-2005, 03:43 AM
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Re: lower compression ratio?
If you need more power than a basic Hahn kit, you are looking into an engine rebuild, where you can make lower compression happen. Consider the cost of buying a turbo DSM before spending $5000 on a non-turbo, also.
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