Results 1 to 5 of 5

Thread: spark advance question

  1. #1

    spark advance question

    is it ok to elevate spark advance table as long as no knock occurs?
    i have raised timing in cruising area by 9 degrees without a knock,, is that the right way to do it?
    09 CTS-V A6

  2. #2
    Senior Tuner SultanHassanMasTuning's Avatar
    Join Date
    Nov 2009
    Location
    All Around
    Posts
    3,149
    when it comes to timing where you want to reach MTBT especially in cruise areas it is best to be on a loaded dyno, yet with the E38/E67 PCM you can not adjust timing on the fly.

  3. #3
    Quote Originally Posted by SultanHassanMasTuning View Post
    when it comes to timing where you want to reach MTBT especially in cruise areas it is best to be on a loaded dyno, yet with the E38/E67 PCM you can not adjust timing on the fly.
    MTBT?
    what would a loaded dyno give over street cruising?
    09 CTS-V A6

  4. #4
    Senior Tuner mowton's Avatar
    Join Date
    Mar 2007
    Location
    Florida
    Posts
    3,773
    Maximum Brake Torgue... timing that provides the most efficiency and burn. The actual torque reported by the dyno will indicate that timing level.

    Ed M
    2004 Vette Coupe, LS2, MN6, Vararam, ARH/CATs, Ti's, 4:10, Trickflow 215, 30# SVO, Vette Doctors Cam, Fast 90/90, DD McLeod, DTE Brace, Hurst shifter, Bilsteins etc. 480/430

    ERM Performance Tuning -- Interactive Learning ..from tuning software training to custom tunes
    HP Tuners Dealer- VCM Suite (free 2hr training session with purchase), credits and new Version 2.0 turtorial available
    http://www.ermperformancetuning.com
    http://www.facebook.com/ERMPerformanceTuning

    [email protected]

  5. #5
    Tuner 4evervette's Avatar
    Join Date
    Jan 2008
    Location
    dyno room
    Posts
    169
    On loaded dyno you simulate a crusing condtion, with load , see how much tourqe ur getting for each rpm range , then increase ur timing to see if u gain much ,,,doing that you will find ur Min spark for best torque

    Not having knock does not mean for sure you gain any house power ....
    specialize in: V8 Conversion & Tuning (UAE- DUBAI)
    supercharge installation
    Salah clutches for Nissan, Toyota and GM car