Author
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Topic: New compression,,needs tuning?
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Hater
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Member # 3085
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posted
Theres a contest this weekend, With my new engine Im runing 9.2:1 of compression and stock computer,,if I enter the contest,,is there a chance I damage something in the engine?
Posts: 168 | Registered: Jul 2003
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GOT 50
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Member # 1960
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posted
nope
Posts: 2139 | From: SF/DALY CITY/MILLBRAE | Registered: Oct 2002
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BlackNGold
CaliforniaFords.com Moderator
Member # 655
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posted
What kind of contest?....
NEED MORE INFO
-------------------- -SLOWER TRAFFIC KEEP RIGHT-
Posts: 5132 | From: Bay Area, CA | Registered: Dec 2001
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88gt
Custom
Member # 579
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posted
quote: Originally posted by GOT 50: nope
Of course you could be putting your engine at risk, but most likely it's not because of the compression ratio. If you put a new engine together and you haven't tuned it at all (it sounds like you haven't) then if the contest is a race of some sort I wouldn't reccomend doing it. What exactly did you replace? Just the short block? You might be able to get away with it.
Posts: 1482 | From: Santa Clara/Bay area | Registered: Nov 2001
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Hungry Hippo
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Member # 537
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posted
is it a compression contest? you'll lose with 9.2 to 1. that is stock
-------------------- 05 S4 Avant(wagon) 09 C6 H/C/I
Posts: 2959 | From: east bay | Registered: Nov 2001
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Hater
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Member # 3085
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posted
9.2:1 is not the stock compression for 99+gts,,and nope,,I havent tuned the engine,,Since its basically the same engine, but with stronger internals, I'm just using the stock computer program,, The contest is a racing contest,,1/8 mile..but Its in brakets so I would be in the 9s bracket.
Posts: 168 | Registered: Jul 2003
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Stimson
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Member # 51
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posted
What was your old compression ratio? All motor or power adder? I'm going to assume all motor. If its only half a point more/less or so, I wouldn't worry about it. If you increased your compression ratio a point or so, maybe you need to back off on the timing a degree or two, or use octane booster.
Posts: 2373 | Registered: Jun 2000
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