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TRACS Repeat Question[850/97R] posted by Kyle Dorr on
Thursday, 30 November 2000, at 9:01 p.m.
A question was posted a little while ago about the function of TRACS. I'm also curious to see what the general consensus is about it's effectiveness in full-throttle starts.
I have a 97R and tried a full-throttle acceleration the other night to see what it would do (just curious). All my car did was to smoke the right front wheel (as far as I could tell). I tend to agree with the other post that it may not work well with the full-throttle trial I did, but at the same time it bugs me.
Before we get farther, I already had the ABS/TRACS off light come on this summer, and the dealer replaced the ABS unit under warranty. Until snow falls here in any significant amount, I won't be able to test it with slow starts.
Should TRACS activate with a full-throttle start?
Thanks,
Kyle
Re: TRACS Repeat Question[850/97R] posted by abe crombie on
Thursday, 30 November 2000, at 9:57 p.m.
TRACS doesn't have the capacity to handle a full throttle start.
If you nail it, the momentum you have already built in tire/wheel/hub/axle is too great for the caliper to retard with the capacity of the hyd pump of the ABS.
Read the owner's manual and you will see the text on the TRACS speaks of it as a starting traction aid for foul weather and not a boy-racer device for wheel spin prevention for heavy feet.
STC that came out on 99's with electronic throttle uses the TRACS and the systems' ability to reduce engine power via throttle manipulation to control wheelspin on take off very effectively. The effective part of the STC in the nailing the throttle situation is the throttle modulation and not the TRACS retarding the wheelspin.