So i have a performance model with VDC. I went to the track once and I didn't know if to use with or without. I've been told having off works better but when I ran it I spun them a lot and got kinda sideways. So i'm wondering you guys with VDC do you run with or without? What RPM do you launch at? What kind of tires or mods? Do you drop the clutch or let it out slowly?

Thanks... I need the help so I can hit better times next time I got to the track.

 

i def turn mine my VDC off i launch at 1-2 rpm (car still spins) i normally drop the clutch but from what i hear letting it go slow is better.
I have the performance version everything else is bone stock

 

sounds close to me.. I think I will start running w/o VDC..

 

I always run without the VDC. Only in the rain do I leave that button alone. Otherwise, when I start my car, it is the first thing I do after I have taken the car out of gear and let it warm up in neutral, I immediately reach for the VDC button and shut it off. The way the VDC on this car is designed, before you actually notice it on and it is cutting off power, the VDC has already begun tailing off power. Only when you notice the breaking in power, the VDC is in full force cutting power. But when you accelerate hard and you are on the verge of your tires breaking loose, the VDC is already interupting. Therefore, shut that bugger off and wear out those crappy stock tires if you still have them. With the slippage of the clutch on a launch, you will maximize the power to the ground.

 

alright thanks man, cause I was asking my friend why he always had his off (he has TCS) and so I was wondering... I bought new tires (BF G-FORCE KDW) and i'm putting them on wed. and im doing some races this wkend so I was wondering what I should do cause I do feel the VDC cut off the power.

 

I turn off VDC and turn it on if I am going through turns or it is raining. I notice a bid difference in power with VDC off. On it feels like 4WD and pulls power to all four wheels. Use VDC in mountain roads, it is great you stick to the road. Also use VDC if you get in a race. I found this out racing a bike last weekend. When I shifted into fifth, I had a minor fishtail at 85 mph, a little scary. Start the car, let it warm up, turn off VDC just remember there are times it comes in handy.

 

so you say you run w/o VDC on. whats your RPM (what do you launch at)? mods? tires? thanks.

 

defiently NO VDC. At the track when you switch gears really fast your tires will spin a little bit and if you have your VDC on when you spin it will cut the power out (or atleast it feels like) and you will get a slower time. I always have mine off inless its raining or snowing jsut in case i get sassed and have to get the spinning past somebody!

 

18 inches with Brembo's, got the GT ZR. Only mod is grounding, it made a big difference, smooth up to Redline. Shift at about 5000-5500 unless on a commute(freeway). Anyone else skip gears on freeway, ie, 2nd to 4th, 4th to 6th?

 

Is it just me or did you all noticed that If you cut VDC off, our car tends to guzzle a lot more gas than leaving VDC on?

 

I am getting about 17 mpg.

 

Hmm . . . it could be your lead foot

Back to the topic, definitely launch with VDC off, but try like hell to slip the clutch to avoid wheel spin. When street racing (rare), I typically will do a slightly aggressive launch until I confirm traction, then I pounce on it through the gears. Having TT makes shifting (and avoiding redline) fun

G

 

I heard it was bad for the cincros (spelling) to not go into each gear like 1,3,5, instead of 1,2,3,4,5,6? My friends with a VR-4 ruined his 3rd gear cincro and the shop said it was because of that.

 

thats bs....

 

so not just droping the clutch with VDC off works better at the track? just try not to spin the tires as much i'am i correct?

 

Every 10th of a second you spin tires = a slow 0-60 and less-than-optimal 1/4mi times.

 

Greetings,

Don't have my Z yet (within 30 days?), deciding between Enth. and Perf.
6MT model...just a few questions please...

Does the VDC in effect "include" TCS in its operation? Just one button
will turn both on/off?

When the VDC is "on" at launch, it prevents wheelspin (TCS function)?
And also prevents lateral sliding (VDC function)?

I understand the VDC/TCS uses throttle retarding and individual wheel
brake application...does this wear the brake pads somewhat faster if it
is used a lot?

Thankz!

 

VDC does include TCS in its operation and it does use a one button operation . . . as for the brake pads, I suppose, in theory, it does wear them a little faster, but I believe its a moot point. The only thing that annoys me is that the stock pads create quite a bit of brake dust. I switched out to the project mu pads and it cut down the dust drastically and still performs as well as the stocks. Hope that helps.

Gary

 

What do you guys launch at with the VDC off? and how much wheel spin you get?

 

I've heard of people doing semi-aggressive launches at 2500 (slight clutch slip) . . . after all, a TT (even stock for that matter) climbs the RPMs rather quickly. It made a huge difference to get the tire pressure correct. I run 285s and at one time, they were over inflated, which equates to skating on ice

G