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Thread: How does torque limiting work?

  1. #1
    Lifetime Member
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    Default How does torque limiting work?

    Next year I told my daughter she can race my firebird and right now It will be faster then I would like her to be so I was going to do a few things to slow it down.

    I'm also worried about traction and she does not have the experience to feather the throttle on the launch and therefore would be inconsistent and would hurt her chances of winning.

    So I was looking through the tun file and I see the torque limiting section and I was wondering how that works and if I could use it somehow to slow the car down and or reduce the launch torque to keep the spinning to a minimum. How does it activate and what sensors are involved?

    Lee

    230" Dragster - 2000 LS1, 02020003 Speed Density, PRC 2.5 Heads,
    MS3 Cam 237/242 .603/.609, Vic Jr. intake, Holley 1000CFM TB,
    PowerGlide, 5000 stall converter. 8.70@154 MPH

    My Projects Homepage: http://www.horsepowerracing.com

  2. #2
    R.I.P Shawn, 1956-2011 WeathermanShawn's Avatar
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    Hi Dragster:

    Not exactly sure how to remedy your situation, but you could always lower the rev and speed limiter.

    Local friend with a licensed teenager locked in his max speed to 100 mph. The car has over 500RWHP, so that was how he did it.
    Last edited by WeathermanShawn; February 10th, 2010 at 01:08 AM. Reason: Grammer
    2002 Black Camaro Z-28 M6 Hardtop 11.0:1CR 425HP/410TQ SAE (400TQ@3500RPM)
    200cc Heads, 228/232 110+2 Cam, 1 3/4" LT's w/catts, GMMG, Koni Shocks, Hotchkis Springs, 35/21 Sways, 17" ZR1's, 3.90 Gears Roadrunner PCM LM-2 Serial Wideband
    EFILive Closed-Loop MAF/SD Hybrid Tune..


  3. #3
    Lifetime Member johnv's Avatar
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    If you have traction control, you could tune that to suit.

    The torque reduction is more there to save the trans i think.

    you could just detune, pull timing, add fuel.

    or maybe lower shift rpm on 1-2 shift and increase torque reduction on shift to reduce wheelspin.
    Back yard boost
    347+ T76 = 770 rwhp 10.96 @ 135 mph

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