turbo compression
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Joined: Jan 2002
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From: garage
Engine: 3xx ci tubo
Transmission: 4L60E & 4L80E
Do a search on google for ray hall calculator. It will give the comp. ratio.
That sounds like a big motor & big turbo for a first time turbo app.
The comp. ratio depends on gas, intercooler, water injection, etc. You probably need to post more info on the setup to get a reasonable answer.
That sounds like a big motor & big turbo for a first time turbo app.
The comp. ratio depends on gas, intercooler, water injection, etc. You probably need to post more info on the setup to get a reasonable answer.
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iTrader: (3)
Joined: Oct 2004
Posts: 805
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From: Charleston, SC
Car: '85 TA
Engine: 350 turbo
Transmission: T56
Axle/Gears: 3.70 posi 9bolt
A good compression ratio that everyone seems to agree on is 8.5 for boost. A thread debating it is on the turbomustangs forum and is pretty good.
http://www.turbomustangs.com/smf/ind...63.0;topicseen
http://www.turbomustangs.com/smf/ind...63.0;topicseen
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Joined: Jul 1999
Posts: 578
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From: Cincinnati
Car: 1987 GTA
Engine: PT88 Turbo DART 406
Transmission: th400
Axle/Gears: 9" ford
Im ~8 to 1 before the turbo kicks in... However When I run low boost(street setting) I have to run a hotter plug than when Im in race mode..
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