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Thread: Heat Problems after Marine injectors installed

  1. #1
    Join Date
    Apr 2007

    Default Heat Problems after Marine injectors installed

    About a year ago I installed the fuel mizer injectors and lost 2 mpg from stock, and the truck was weak. After about 6 months after installing 1 begain to leak so i decided to up grade to Marine injectors now I have a heat problem. Do I need to upgrade exhaust to 4" for the Turbo to breathe better and air to flow better.
    Any help will be helpful

  2. #2
    Join Date
    Feb 2007


    Clean the cooling system, first the outside of the radiator and coolers.
    Grant H.
    1995 6.5 turbo GMC K2500 extra cab 4x4 pickup, PMD under bumper, mechanical wastegate, 228,000 miles, rebuilt engine, 4.10 diff, 16 mpg
    1994 6.5 turbo GMC K2500 4x4 suburban #9 resistor, PMD in the bumper, mechanical waste gate, 226,000 miles, new engine, 0 miles. 3.73 diff, 16 mpg
    1982 4x4 shortbed 6.2 Chev 260,000 miles untouched motor 17 MPG 4.27 diff. Best thing I ever owned, since 1992.

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