jus got a 2004 sport sedan and planning on racing it on the track this weekend.
should i race with the vdc on or off? ive read on a couple threads that with the vdc off, the rev limits to 4,500 rpms. and that it turns back on after 20 sec.
dont know, i didnt experiment these things yet.

 

Unless you lose traction....it makes no difference.

However odd are you will spin a tire...so turn it off.

 

I've never encountered a 4500rpm rev limit on my car with VDC on or off. The VDC kicks in way too early on our cars. Normally I would say to turn it off for any type of enthusiast driving, but if you have to ask, maybe you should keep it on. You don't say what kind of track you are going to (drag or road course). If it is the latter, be sure to flush the brakes before you go.

 

if you are on a track, turn VDC off. you will have wheel spin at some point and don't want VDC shutting you down.

 

So you just got the car & are going to track it already? How many miles have you driven it and have you tested it's limits yet? Who knows, maybe you're a pro, not sure, but could be an accident waiting to happen (no pun intended) if you're not very experienced with a RWD car, haven't driven it much & if you don't use VDC. Just my $0.02. Good luck & be safe.

 

always turn VDC off, it will hurt your launch. Theres no such thing as a 4500 rpm limit with VDC off.

You should also race in manual mode.

 

Off! Unless it is raining or snowing.

 

VDC off. When VDC kicks in at the "TRACK" it will bog your car down. I say "TRACK", because we all know your not doing this on the street!

 

off without a doubt regardless of what your doing. The only time it should ever be on is snow or rain imo

 

even in certain situations in the rain, it should be off.. certain pavements allow too much slip and then it totally bogs down

 

Of course when I raced my awd at the track...it didn't make a difference since I had zero wheelspin. I ran the same et with vdc off and when I forgot and left it on accidentally.


To be honest....only time I have ever turned my vdc off....was during my 10 drag passes with the car. Other than that it stays on

 

What he said!

 

Maybe the 4500 limit is for LAUNCHES only. My dad's 04 AT doesn't rev past somewhere around 4500 from a stop. Not sure if this has anything to do with VDC or not.

Here's how leaving VDC on or turning it off was explained to me...
Sooner or later you will reach you limits of traction. when this happens, you don't want the computer deciding how to apply the brakes and cut the engine. YOU want to be in control of that. For instance, you will likely lose grip mid corner, and brakes during mid corner = spin out/crash.

With that said, I assume no liability for an accidents or losses that occur as a result of any words in this post. Racing is always dangerous, and only you and professionals can decide how to set-up or run your car.

 

ON while learning the track. That's extra insurance against a learner's mistake.

OFF after enough laps to have learned the course.

 

What he said^^^^ but I don't see the point in racing it at all...

But you all shouldn't turn VDC off in the rain, or probably even on the street for that matter. It's not just traction control, but also yaw control and will re-orient the car given your inputs to avoid an accident.