To accelerate the fastest on the highway is it best to turn the tracton control off and OD off at the same time?

 

OD should be off but TC doesn't really matter unless you are getting wheel slip

 

I figured OD should be off, and I was told that from a start to turn traction control off so the wheels aren't fighting each other and more power is being deliverd to the ground. Is this true??

 

When do you expect to be entering a highway from a dead stop? Even some of those 'signaled onramps' are often rolling stops at best.

In general, no. What TCS does is limit overall power to the drive wheels until slip (either environmental or torque related) is reduced/eliminated. It does not referee a fight between the wheels. Under a non-slip launch, TCS SHOULD deliver just as much power to the wheels as with it off, I said SHOULD.

 

when one or more of the wheels slip, similar to ABS.
If you have no tire slippage it's just as if it were off.

A bit of advise: whomever told you this is a baaaad source of information, I would be very leery of any further opinions from him/her.

 

Definitely!!

 

 

Often, apparently yes!

However, I guess we do have to give a few extra credit points since the guy did ask the question to double check this information.

 

I intended it...I meant the comment to the guy who gave our noob the info, not him...agree, kudos to 00seSoonToBee for asking

 

Thanks guy's. I was told this, and now I know it's not true. I also remember reading a thread not too long ago about a member who had raced his friend in an Alero and another member had told him to leave TC off when red-light racing(or from a roll). I guess I must be mistaken. Since this is my first car with TC (and alittle power to boot ) I figured it woulden't hurt to ask a couple questions

 

from a standing start, yes, you indeed do want to turn it off, for the same reasons jjs & I outlined above. It's very possible to induce wheelspin from a standing start and if the TC is on, it will sense the wheelspin and activate, retarding fuel and spark advance and essentially killing your run.

rule of thumb: if wheelspin is expected, turn it off!

 

Cool, I got ya

 

im not sure if anyone else experiences this or not but when i accelerate with o/d off around 70 i hit a dead spot. ive found that if i leave o/d off til around 70 then click it back on that it actually pulls harder. blubyu2k2 and i were riding around testing it one night and it does make a difference. the rpms jump around 500 when its clicked back and it seems to overcome the dead spot. after 80, it just pulls nicely.

 

that is the torque converter unlocking...