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Thread: DRAC needed?

  1. #1
    Fuel Injected! mmigacz's Avatar
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    DRAC needed?

    I have a 69 Camaro with TBI set up from a 87 chevy pick-up. I'm using a 1227747 ECM. I installed a VSS sensor that installs between the transmission and speedometer cable. I have no need for RWAL or an electronic speedometer. Do I need to use A DRAC if I am only using the speed signal for ECM feedback? If not, how should I wire it into the ECM?
    1986 ski centurion boat, 351W, gt40P heads, edelbrock performer rpm, 1227747 ecm, 72 lb/hr injectors (@18 PSI fuel pressure), .490/.490 lift, intake 278 duration, exhuast 282 duration, 112 lobe separation

    1969 camaro, 355ci, performer RPM intake, camel hump heads, 1227747 ecm, 454 throttle body (@18 PSI fuel pressure),

    2016 Chevy Cruz

    2014 Chevy Silverado

  2. #2
    Fuel Injected! mmigacz's Avatar
    Join Date
    Oct 2013
    Location
    Sheboygan Falls, WI
    Age
    50
    Posts
    161
    I figured it out.
    1986 ski centurion boat, 351W, gt40P heads, edelbrock performer rpm, 1227747 ecm, 72 lb/hr injectors (@18 PSI fuel pressure), .490/.490 lift, intake 278 duration, exhuast 282 duration, 112 lobe separation

    1969 camaro, 355ci, performer RPM intake, camel hump heads, 1227747 ecm, 454 throttle body (@18 PSI fuel pressure),

    2016 Chevy Cruz

    2014 Chevy Silverado

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