VDC off I almost crashed!!

shadow85

I have a quaife diff and a TT setup

The other night, I tried a WOT pull for the first time with VDC off.

In the middle of the 3rd gear pull the car violently and suddenly spun to the right and then to the left before I made it come to a halt. It scared the **** out of me!

Why did that happen? I have Pilot Super sports 275/35 on the rears and I was going in a straight line under WOT, then around the 4000RPM mark it almost felt like someone grabbed my steering wheel and threw it to the right and then to the left!! There was no gradual loss of control sliding etc, it just happend so suddenly out of nowhere.

Anyone else experience this before?

stricha

Bro, your car lost traction. The rear was coming around. I will keep the rest of my comments to myself.

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A car is only as good as it's driver

shadow85

Yeah but I didnt know it would throw me around like that, like it happend really quickly. There was no gradual loss or indication at all, it was farked!

Do i need bigger tyres, and or just turn down the boost?

stricha

Wider tires help, more rubber helps, better suspension helps, boost DOESN'T help. This is why a lot of people don't care for TT. When it boosts, it BOOSTS and you very well are going to lose traction. Gotta learn how to feather the gas and control it.

Before doing a pull, try heating the tires. That helps too

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A car is only as good as it's driver

shadow85

Well I am removing the EBC this week. It was throwing me upto 14psi from 8 psi even switched off. That is prolly the cause of the huge traction loss.

I just hope it doesnt spin out of control like that again.

I do have alot of suspension mode aswell

Chuck33079

You hit full boost and the tires broke loose. That's not a bug, it's a feature. Fix your right foot, not the car.

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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

NorthStyle

As he and everyone else said: You have to crawl before you can walk. Throttle control will do you wonders instead of just burying the pedal and hoping for the best. Hope this was a learning experience.

scope22

Yep, once in my 1985 trans am NA V8 305, not much HP but i had upgraded gears in the diff, once both wheels loose traction you're so ******. Between gear changes is most dangerous, also small changes in steering will throw power off to one side and if both wheels dont have traction at that moment you're ******, you're much safer with open diff. you need to take the car to the track to practice WOT pulls so you know what the car will do.

Geoff-AU

you mean running out of talent?

no.. I prefer to drive within my abilities...

FPenvy

fixes for this issue:

a. throttle control
b. more time learning the cars power....gradually.
c. wider tires
d. stickier tires

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Chuck33079

It's just a and b. A TT Z will blow the tires off at will. Throttle control can quite literally save your life. Hell, didn't some other guy just wad up a boosted Z because he didn't respect the right pedal? These cars are a lot of fun with 500whp, but respect the power AT ALL TIMES or leave the road backwards.

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2011 MB Touring-Sport-6sp-Nav/GTM TT/FI TT TDX/JTran/Kosmic/Eibach/Hotchkis/SPC/CSF/RPS/SoThatsWhereAllMyMoneyWent

FPenvy

100%

i had mine accidentally kick out a bit with just 325whp and 305 RE-11 last week when there was a bit of water in an uphill turn lol

but 7 years with the car i know it very well and control it.

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324whp/258wtq AAM Tuned |F.I. NonRes CF CBE/NonRes TestPipes #373|UpRev Tuner|Akuma Motorsports Intakes|Z1 34 Row Oil Cooler

6mt370

C. is about the last thing you should care about. Z people need to stop chasing the widest tire they can fit and focus more about how sticky the tire is. A 255mm drag radial will be a hell of a lot better than a 305mm Pilot sport.

PharmDZ

THIS! Stop worshiping those damn pilot super sports. They're really not THAT good, just okay. Look at the Toyo R888R or Nitto NT01 if you want something that holds traction better in dry weather and still can handle well. Hell, even the Bridgestone RE-71R is fantastic and still keeps 200 treadwear (okay, barely, and just on paper). Drag radials if you're that desperate for traction, but don't expect them to handle turns all too well. Compound > tire size

Rusty

PSS are a lot better on the street for every day driving then drag radials. Like you said. They don't handle turns too well. This will get him killed. R Comp tires NEED heat in them to work properly. You would have to drive at least at 80% level to keep some heat in them. All you are doing is heat cycling the tire too much on the street. Too much cycling and the tires become hard. R Comp tires don't work well in the rain either.

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