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FMU pressure ratio..too much?

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Old Aug 10, 2004
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FMU pressure ratio..too much?

is 12:1 too much for low 7 psi? or should i buy a 8:1 or 6:1? i dont plan on ever boosting more than 9psi...
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Old Aug 11, 2004
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anyone?
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Old Aug 11, 2004
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i am running 10:1 and i am running a little rich. When i get the E-manage i am gonna cut the fuel back a little.
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Old Aug 11, 2004
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At 8:1 you could probaby boost 20psi if everything is set up right, for 7psi go with around 10:1 incase you overboost. you could go with a higher compression, but the lower the safer.
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Old Aug 11, 2004
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cool.
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Old Aug 11, 2004
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running rich is better than lean..............although running lean makes more power

if you are gonna tune with a piggyback, then 8:1 or 10:1 is fine.
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