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| Engine Tech Technical discussion related to all relevant engines such as KA, SR, RB, CA, 2JZ , L24/26/28, VG, VQ, and LSx series. |
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07-15-2012, 09:25 PM
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#1 |
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Leaky Injector
 Join Date: Jul 2012
Location: Minneapolis
Age: 31
Posts: 143
Trader Rating: (10)
 Feedback Score: 10 reviews
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Compression Question
On a brand new rebuilt motor (SR20) that hasn't been broken in or had the rings seated... what would be an acceptable compression? How much do compression numbers go up once everything is broken in and seated?
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07-15-2012, 09:51 PM
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#2 |
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Post Whore!
 
Join Date: Dec 2006
Location: Misawa, Japan
Posts: 6,815
Trader Rating: (8)
 Feedback Score: 8 reviews
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Most ppl dont do compression tests on fresh rebuilds until broken in.
A fresh broken in engine will be around 150psi with 8.5:1 CR
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 後輪駆動車１番1989 Built SR GT2871R -363whp 1998 S14 W/RB25- 250ish (For Now) 1986 SR86 - 200ish 1990 R32 GTR - 320hp Don't Buy Engines from JDM-Online http://zilvia.net/f/businesses/207457-jdm-online.html Don't Buy XS-Power or SSAC Shit |
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