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May 24th, 2008, 10:02 PM
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#1 |
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Hardcore Enthusiast
1989 Mustang GT 5.0
Join Date: Oct 2007
Location: CT
Posts: 2,186
 iTrader: 0 reviews
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stock 5.0l (89 gt) compression ratio
what is the compression ratio for a stock 89 gt 5.0
if ima boost it i need to lower the comp ratio so im thinking of getting a very thick head gasket to just take .5 off or something... |
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May 24th, 2008, 10:35 PM
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#2 |
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Enthusiast
1983 mustang lx
Join Date: Apr 2008
Posts: 504
iTrader: 0 reviews
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or you can get dished pistons too
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May 24th, 2008, 10:38 PM
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#3 |
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I Post Entirely Way Too Much
1987 ford mustang gt
well see when shes done
Join Date: May 2007
Location: mascot, tn
Posts: 5,020
iTrader: 0 reviews
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you will be fine with the factory pistons and c/r it is 9.1
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May 24th, 2008, 10:52 PM
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#4 |
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Enthusiast
1983 mustang lx
Join Date: Apr 2008
Posts: 504
iTrader: 0 reviews
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what are you planning for boost? if youre running 6-10 psi you should be safe. any more than that and you will need to do some modification.
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May 24th, 2008, 10:58 PM
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#5 |
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I Post Entirely Way Too Much
1987 ford mustang gt
well see when shes done
Join Date: May 2007
Location: mascot, tn
Posts: 5,020
iTrader: 0 reviews
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really you could even go up to 12lbs but i would not go with more than that. I WOULD also suggest a set of good head gaskets
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May 24th, 2008, 11:07 PM
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#6 |
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Enthusiast
1983 mustang lx
Join Date: Apr 2008
Posts: 504
iTrader: 0 reviews
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12 psi depending on the mileage of the motor and shape of the stock head gaskets. +1 on the good head gaskets, its embarassing to be in a car thats trying to show off and all of the sudden the motor pisses itself.
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May 25th, 2008, 05:25 PM
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#7 |
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Hardcore Enthusiast
1989 Mustang GT 5.0
Join Date: Oct 2007
Location: CT
Posts: 2,186
iTrader: 0 reviews
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MLS head gasket
multi layered steel... |
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