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Thread: E67 RPM limiter acting funky

  1. #1
    Senior Tuner
    Join Date
    Jun 2004
    Location
    Baltimore, Md
    Posts
    1,204

    E67 RPM limiter acting funky

    Hitting it earlier than expected. First run hit RPM Lim status at 7850 when it was set at 7900 in gear, not too funky. Hysteresis is set to 50 rpm coincidence but thats supposed to mean how far it has to drop before resuming. Raised it higher, and it hit it earlier the next run (run6 & upmore3 file)

    Heard someone mention if you dont let it do TPS it can make it act wonky. I dont want it cutting spark in a cylinder full of 1500hp worth of fuel, and didnt really like the idea of it shutting TB blade at 30 psi boost either?

    Any ideas - were trying to party over here
    Attached Files Attached Files
    Factory Stock 97 SS M6 13.51 @ 104.3 mph
    Stock Longblock LS1 w/ 233/238 P.S.I. Cam
    10.81 @ 126.9 Full interior, six speed on 275 radials, a decade ago

    '99 TA trunk mounted 76mm 6 Liter
    9.0s in '09 @ 153 MPH

    Turbo 5.3 Volvo 740 Wagon
    32psi and still winding out 5th on the highway somewhere

  2. #2
    Advanced Tuner jsllc's Avatar
    Join Date
    Sep 2015
    Location
    Bozeman, MT
    Posts
    701
    might try this
    Attached Files Attached Files
    2012 ZL1 - Maggie Heartbeat, Port & Polish Heads, Custom Cam, Custom rotating assembly, steel sleeved LS9, No NOS and No water meth. 16psi
    810rwhp and 820rwtq 91 Octane 6400 rpm
    948rwhp and 951rwtq 105 Octane 6400 rpm
    999rwhp and 997rwtq on 60% Ethanol 6400 rpm