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Thread: Header Primary Diameter?

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  1. #1
    Join Date
    Apr 2003
    Location
    Mansfield, Texas, USA
    Posts
    2,462

    Thumbs up

    At what appx power level does the 1.75" primary become a restriction?
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


  2. #2
    Join Date
    May 2007
    Posts
    17
    It depends on the size and RPM of the motor.
    2002 Silverado 2wd ecsb 5.3 4L60E 3.73 Headers, 160* thermostat, TBS, Redneck RamAir, Descreened MAF, Coolant Bypass, Air Gap, Dumped exhaust, LS1 fans,Wheatley tune mid 14.'s...


    http://www.dragtimes.com/Chevrolet-CK1500-...slip-11744.html

  3. #3
    Join Date
    Apr 2003
    Location
    Mansfield, Texas, USA
    Posts
    2,462

    Cool

    6500rpm 420" stroker.
    The superior man is modest in his speech, but exceeds in his actions. - Confucius

    "He who asks of life nothing but the improvement of his own nature, is less liable than anyone else to miss and waste life."- Henri Frederic Amiel

    '01 Chev Z71 LT - '85 BMW 745i TURBO - '88 BMW 750iL - '88 Ford F150 XLT Lariat - '79 MB 240D - '79 MB 280S Euro
    '80 MB 380SE-5.0 Euro - '85 MB 300SD - '87 MB 300SDL - 1990 MB 300SEL - '91 MB 300SE - '91 MB 560SEL

    Let's face it, the red hair... makes 'em wet.


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