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360 variator delete

Discussion in 'Technical Q&A' started by kj2001m5, Jan 17, 2014.

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  1. kj2001m5

    kj2001m5 Karting

    Aug 7, 2009
    121
    #1 kj2001m5, Jan 17, 2014
    Does anyone here have first hand experience replacing the variators on the exhaust cams with the dummy variators/spacers from the intake cams?

    Rebuilding a challenge motor for a project car. 1 variator broke bending valves. I'd just assume to lock the cam timing and tune the variators out of the programming.
     
  2. tazandjan

    tazandjan Three Time F1 World Champ
    Lifetime Rossa Owner

    Jul 19, 2008
    39,161
    Clarksville, Tennessee
    Full Name:
    Terry H Phillips
    #2 tazandjan, Jan 17, 2014
    Are you going to fake variator signals to the Motronic DMEs, too, so the Motronics do not keep looking for it?
     
  3. kj2001m5

    kj2001m5 Karting

    Aug 7, 2009
    121
    #3 kj2001m5, Jan 17, 2014
    I'm just gonna run a stand alone. From what I can find out, you can program it out of the factory ecu though.
     
  4. cwwhk

    cwwhk Formula 3

    Nov 13, 2003
    1,535
    Hong Kong, Tokyo
    Full Name:
    Wayne
    #4 cwwhk, Jan 18, 2014
    I had two race engines from Italy with variator delete, MAF sensor delete, race cams, high compression light pistons, reprogramed ECU, and retuned intake manifold port lengths. For sure a bit more hp at the top end but idle is lumpy and noticeably less lower end torque.
     
  5. Fear.Engineer

    Fear.Engineer Rookie

    Oct 27, 2013
    17
    Poland
    #5 Fear.Engineer, Jan 28, 2014
    Do not even borther with stock ECU, almost any Standalone ecu will work with this engine.

    Best regards

    Kuba
     
  6. Chipwizard

    Chipwizard Rookie

    Feb 4, 2014
    2
    #6 Chipwizard, Feb 4, 2014
    Sort-of. You just set the 'desired-angle' (in the ECU) to be that same as the 'actual-angle' (measured running with a scan-tool) once you've locked the cam position, that way the ECU won't report a cam angle error because 'cam-angle-deviation' will be within limits.

    As for the oily bits, I don't know, I only do the mapping side of things these days.
     

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