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Thread: 1998 402 Forced Induction

  1. #1
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    Default 1998 402 Forced Induction

    Tuned sd 7 psi will soon increase boost to 20 psi after break in. currently using MAF. I would like to upgrade OS to 2 bar MAP. C5 6 speed 402 procharger. What os should i use ? os not listed.

  2. #2
    EFILive Reseller ringram's Avatar
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    98 PCM is a sad story, no custom OS available. Ross had plans, but they are on the back burner.
    Get EFILive in europe (http://www.efilive.eu).
    2007 Escalade ESV L92 6.2L VVT.
    2014 VF SV LS3 Maloo.

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    Quote Originally Posted by MPDYNO
    Tuned sd 7 psi will soon increase boost to 20 psi after break in. currently using MAF. I would like to upgrade OS to 2 bar MAP. C5 6 speed 402 procharger. What os should i use ? os not listed.
    What is the max maf frequency you are seeing @ 7 psi?
    99 FRC 402 Twin Turbo

  4. #4
    EFILive Reseller ringram's Avatar
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    You can play with the stock OS in open loop and use PE to kick in post 105kpa for extra enrichment. Not sure on the spark front though, you might have to talk to the stock OS FI guys.
    Get EFILive in europe (http://www.efilive.eu).
    2007 Escalade ESV L92 6.2L VVT.
    2014 VF SV LS3 Maloo.

  5. #5
    Senior Member Chuck L.'s Avatar
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    Question ????????

    Quote Originally Posted by MPDYNO
    Tuned sd 7 psi will soon increase boost to 20 psi after break in. currently using MAF. I would like to upgrade OS to 2 bar MAP. C5 6 speed 402 procharger. What os should i use ? os not listed.
    What are you going to use for injectors at 20psi??
    Chuck L.
    CODY Motorsports
    Fuel Injector Service
    Madison, GA.
    706-342-3152
    770-265-5144 [C]

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