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Thread: How much PSI do I need to run to make 550s act like 510s.

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    How much PSI do I need to run to make 550s act like 510s.

    How much do I need to drop from stock to do this. PMs

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    1st ever COTM and COTY verified Feedback Score 9 (100%) green-lantern's Avatar
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    Are you talking fuel pressure? What are you using to tune?

    Quote Originally Posted by HilbillyHomeboy View Post
    I bet she smells of old mustard and sawdust.
    Jeremy

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    Member Not Verified Feedback Score 4 (100%) dpartinvr4's Avatar
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    Yes fuel pressure.

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    Thank U dpartinvr4.

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    whats the stock fuel pressure of the 3s? if its 43.5 (3 bar) then you need to set the fuel pressure to 37.5 to get 510cc

    Fuel Injector Calculator from WitchHunter Performance

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    Member Not Verified Feedback Score 4 (100%) dpartinvr4's Avatar
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    Quote Originally Posted by 1grick View Post
    thank u dpartinvr4.
    np

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    LW fears my posts Not Verified Feedback Score 1 (100%)
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    Yes, you'll need about 38 psi. I'm not sure why you'd do this though, 40cc is very easily accounted for by pretty much every AFC made.

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