pedroosan

iTrader: (1)

http://video.google.com/videoplay?do...q=350z&pl=true

They basically confirm that switching VDC off allows for drifts as long as you don't use the brakes. When braking the EBD or ALBS or VDC or whatever you want to call it, will cause understeer.

350dgrz

Nice find!

Amiricanmade

iTrader: (6)

what is this VDC?

MustGoFastR

iTrader: (13)

Sweet. This looks exactly like the proof that was needed to justify all the VDC disable threads. So it truly ISN'T off when you hit the button, after all...

PDX_Racer

iTrader: (2)

Not on my '05 Track model...

VDC off means "VDC IS OFF" -- confirmed today by two 360 spins in the wet.

P.S. -- Yes, I do left-foot brake, and it didn't enable EBD or VDC.

pedroosan

iTrader: (1)

maybe it did, but since it was wet what ever you did to cause the spin was just stronger? 360 is a bit extreme to expect VDC to be able to counter that.

Probably if you take your car to the track and do subtle braking in a turn and expect to have the rear come out a little to help you with getting the car around, you may find that you get understeer after all.

seanlaw

iTrader: (4)

hmmm interesting

phile

I agree with that last post, you can't expect VDC to counter that.

davidv

iTrader: (2)

Braking in a turn with or without VDC will exaggerate under steer by shifting the weight to the front tires. That's just common sense.

phile

That's not the point, most of us know that. Did you even watch the video?!

Havok_RLS2

iTrader: (9)

OLD!

If you guys haven't taped into the Best Motoring DVD's then you've been missing out on a lot of information.

Everone should have a copy of BMI (Best motoring International) Z Shock.

pedroosan

iTrader: (1)

@Havok:

Thanks for the hint, no I haven't watched the DVD yet.
BUT although maybe OLD for you... it's not a REPOST
I searched the forum for that video link before I posted it.


@davidv:
I am amazed, you always have poignant, accurate and very concise posts right to the point, but this time sorry to say, you are off

If you take a skid car course and listen to the instructor or read any book, weight increase in the front due to braking will increase traction in the front and reduce understeer.

There are basically 2 different things:
1.) weight distribution: The correct thing to do when you get understeer is to brake/slow down to move weight to the front. If done too much in a turn you should get oversteer, which is also the danger of trail braking into a turn.

2.) brake bias: Those tires that get braked more, get closer to their traction limit. By adjusting the brake bias towards the front, you can increase understeer, adjusting to the rear, you can increase oversteer.

Basically VDC uses the second effect to avoid oversteer as much as possible, which takes the fun out of driving RWD.

taurran

iTrader: (18)

I installed a VDC kill switch on my car. I can do burnouts no problem, but haven't used it to actually attempt to drift. I can't tell any difference in normal straight line acceleration with the kill switch off or engaged.

phile

You feel like posting some instuctions?

NismoNitsuj

iTrader: (1)

All I know is that the drifting that is done in the new F&F is done with a SEVERELY modified Z. Same with the GT-R's and Evo's. Not that this is anything new.