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Thread: Adding a fuel pressure gauge inline?

  1. #11

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    What is the operating PSI for these units? Book says 58-60, but is it more like 58-68 maybe?
    Like I said, the line pressure is a steady 64 psi. Should I be concerned? It ran & idled fine.

  2. #12
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    18,698

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    The Sniper EFI fuel pressure should be 58.5-60 psi, but I've read a lot of users with slightly more than that.
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

  3. #13

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    Every sensor & gauge will have a + or - rating. Over the years, I've used 5% rule. So 60 PSI on gauge could be (60 x .05 = 3) 57-63 PSI.

  4. #14
    Join Date
    Dec 2009
    Location
    Connecticut
    Posts
    18,698

    Default

    Yes, I agree.
    https://aeromotiveinc.com/frequently...fi-regulators/ (Aeromotive EFI Fuel Pressure Regulator FAQs - Read Questions #7 & #8!)
    http://aeromotiveinc.com/wp-content/..._Gauges_01.pdf (Aeromotive Tech Bulletin 903 - Liquid Filled vs Dry, The Problem & Solution)
    May God's grace bless you in the Lord Jesus Christ.

    '78 BRONCO: 508" stroker, TFS heads, 11:1 comp ratio, Dominator MPFI & DIS, cold air induction, Spal dual 12" fans/aluminum radiator, dual 3" exhaust/Magnaflow mufflers, Moroso vacuum pump, Accusump, engine oil & trans fluid coolers, 100HP progressive dry direct-port NOS, A/C, LenTech Strip Terminator wide-ratio AOD/2500 RPM converter, 3:1 Atlas II, modified Dana 44/60-lockers-4.10s, hydroboost/4-disc brakes, ram-assist/heim joint steering, Cage long radius arms, traction bars, 4" Skyjacker lift, 35" mud tires

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