electrical gremlins

Discussion in 'PSI Superchargers Tech Questions' started by overkill69, Oct 19, 2014.

  1. overkill69

    overkill69 Member

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    Looks like this was our season of an electrical beatdown. We ran good in the spring but broke one blower belt. After that, every race we have broken belts and sometimes had the car shutoff and come back on. We thought we had it fixed after changing out the whole ignition system but it came back big time at Tulsa. You name it...missing that you can hear in the burnout, car shutting off dead after launch, misfires that you can see on the rpm graph, sometimes the car wouldn't fire on the crank trigger....We changed out everything including the battery. Then ran it on the mag trigger instead of the crank trigger.It seemed to be getting better but i'm not convinced we fixed it. We're installing a powergrid and rewiring the whole car this winter.
    I have 2 8973 boxes to sell. One only has 6 hits since new. Cheap.
     
    #1
    overkill69, Oct 19, 2014
  2. jay70cuda

    jay70cuda Well-Known Member

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    Mag kill switch was mine. The vibration made it short out. Switche'd it out and miss was gone. Fought it for two races. Like you changed out every single part of the ignition system and timjng mgmt as well
     
    #2
    jay70cuda, Oct 19, 2014
  3. Will Hanna

    Will Hanna We put the 'inside' in Top Alcohol
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    kill switch

    With today's converter cars needing a big timing curve to get down the track, a kill switch is kind of a redundant part. A clutch car can go make a run on the mag trigger with no retard box, so you need a kill switch to shut the car off. A PX style converter car really can't. So you have to have a retard box to run. Kill power to the retard box and the car shuts off. There's your kill switch.
     
    #3
    Will Hanna, Oct 20, 2014

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