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Thread: C5 Corvette Fuel Filter/Regulator

  1. #1

    Default C5 Corvette Fuel Filter/Regulator

    I'm considering using a C5 Corvette Fuel Filter/Regulator with a Terminator TBI system. I understand the C5 unit regulates the pressure to about 50 psi instead of the Terminator's recommended 43 psi.

    What effect will the higher pressure have on the TBI injectors? Does it have a notable effect on the spray pattern or atomization?

  2. #2
    Join Date
    Dec 2009


    Plenty of Terminator EFI users have done this successfully.
    Holley EFI states the Terminator's fuel pressure can be safely increased to 60 psi (from 43 psi).
    Increasing the fuel pressure is only an option, if the injector pulse-width isn't too low to idle well.
    May God's grace bless you in the Lord Jesus Christ.
    '92 Ford Mustang GT: 385" SBF, Dart SHP 8.2 block, TFS TW 11R 205 heads, 11.8:1 comp, TFS R-Series intake, Dominator MPFI & DIS, 36-1 crank trigger/1x cam sync, 160A 3G alternator, Optima Red battery, A/C, 100HP progressive dry direct-port NOS, Spal dual 12" fans/3-core Frostbite aluminum radiator, Pypes dual 2.5" exhaust/off-road X-pipe/shorty headers, S&W subframe connectors, LenTech Strip Terminator wide-ratio AOD/2800 RPM converter, M4602G aluminum driveshaft, FRPP 3.31 gears, Cobra Trac-Lok differential, Moser 31 spline axles, '04 Cobra 4-disc brakes, '93 Cobra booster & M/C, 5-lug Bullitt wheels & 245/45R17 tires.

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