How to completely disable the VDC

Vegitto-kun · 03-18-2010, 02:21 PM

Quote:

Originally Posted by Modshack

Yeah, but we haven't had a good "I crashed my Z, friend turned off the VDC" story in a few weeks...

my VDC is odd

if its on and I floor it the tires squeel and the back end tends to step out

I tried turning it off once.

floored it. ZERO tire noise. ZERO wonky back end.

odd car mine is

Jamesb1 · 11-02-2013, 03:09 PM

I drive my 2013 6 speed 370z very aggressively. With the VDC off I have noticed that the car does correct itself when doing a burn out. It stays nice and straight without any effort. I suspected that the VDC was still partially ON. It seems I was right. I think it works perfect because you can spin the rear tires but you can feel the car correcting itself when it drifts left or right.

6MT · 11-02-2013, 03:19 PM

Quote:

Originally Posted by Modshack

Yeah, but we haven't had a good "I crashed my Z, friend turned off the VDC" story in a few weeks...

I need some laughs

ElVee · 11-02-2013, 03:35 PM

Quote:

Originally Posted by earwicker7

Every once in a while I think about disabling the VDC, then I ask myself what I'm trying to prove and just leave it alone.

I can't +Like this enough!

Until I learn how to drive the car properly at the limits and I'm on a closed track, I have to agree. Drive with it off, and this car will put you in your place at some point.

wstar · 11-02-2013, 04:09 PM

Every performance car (hell, even a minivan) will eventually put you in your place at some point, with or without traction control disabled. The solution is more driver training. Even if you're not going to make a serious hobby of it in the long term, it would help a ton if everyone who buys a sporty car would at least do 1-3 weekends of instructor-led HPDE stuff. It's not that expensive and doesn't require a lot of crazy car mods at that level, and it really does teach you a lot about traction and suspension management via your inputs.

DrivenSoul · 01-15-2014, 03:43 PM

I helped my friend who has a 370Z disable his VDC. It was difficult to find much info on how to do it, but I helped a friend with a 350Z do it before and figured it should be pretty similar.

You can ALMOST reach it if you take off the cupholder, but removing the center console seems to be the only way to go. The VDC controller will come into plain view as soon as the console comes off. I wanted to make a switch to deactivate it anytime without going through the whole console removal again, so I had to pick a wire to cut and test.. There is a black wire which I assume is ground and it works well for what I intended.

When you use the switch, the sliding car symbol will light up steadily but the VDC light will not. I do not know if it affects anything, but we also disengage the normal traction control button in conjunction, lighting up the "VDC off" light. That light does not turn on when we use our new switch.

Perceived differences:

With the 350Z, it seems like throttle response for some reason is much more touchy with the full disengagement of VDC. It's difficult to rev-match because just slightly touching the gas pedal will shoot revs up instantly and abundantly. For the 370, I didn't see the same results.

Fast cornering was pretty scary with the 370Z before. It's like you "think" everything is off because you push the switch, but the car doesn't feel normal. It never sinks into oversteer or understeer, it feels like it just keeps turning. While this sounds like a good thing, it made me feel nervous because I didn't know how the car would react if I ever went past that threshold.

I've had a couple instances of trying to play past the car's grip level and the car in return gave me awkward responses, for example I would try to get the car to start sliding, but a lot of times power is cut and I end up losing all momentum, or I get it to begin sliding and then suddenly the VDC kicks in and my correct amount of countersteer suddenly becomes me directing the car WAY off-line. With VDC fully off, the car does what I expect it to, it has power if I press down on the throttle and naturally slides if I provoke the rear end enough. It actually feels more confident and easy to drive with everything turned off. If I make a mistake, the car will show me instead of brushing it under the rug.

Anyways I just wanted to give my input and experience with it because I'm sure some people are curious about doing it. Don't worry... You're not going to crash unless you're doing something really really wrong!

1slow370 · 01-15-2014, 03:51 PM

Its not a vdc controller its the yaw sensor, and its nothing new This was brought up back in 09. also a momentary interupt button in the yaw sensors power wire is all you need. just have to cut its power until the car decides its "faulty" and it will be off until you turn the car on again.

DrivenSoul · 01-15-2014, 04:05 PM

I couldn't find all the info in one place on how to do it or a review about how it changed the car, so I just wanted to inform my findings

JWillis72 · 01-15-2014, 04:06 PM

Quote:

Originally Posted by 1slow370

Its not a vdc controller its the yaw sensor, and its nothing new This was brought up back in 09. also a momentary interupt button in the yaw sensors power wire is all you need. just have to cut its power until the car decides its "faulty" and it will be off until you turn the car on again.

Thank you both! I didn't realize this but my car is going to get a new button! My car cuts power on me all the time because of this and I thought it was the VDC but it makes since now that I realize it has a yaw sensor! One of my biggest dislikes about the 370Z has been that you can't hang out the back without it cutting power.

wstar · 01-15-2014, 06:37 PM

The major difference between "VDC Off" and "Unplug the Yaw Sensor" is TCS (the really basic traction control that doesn't do as much as VDC) and ABLS (Antilock Brake Limited Slip). I think both are still active when you just turn off VDC with the button (but are dead dead dead when the yaw sensor is gone). ABLS in particular can really screw up a corner. It lightly taps individual rear brakes to try to assist the LSD with the rear wheel speed differentials. If you're trying to corner at the limit, those random brake taps can really screw with you.

Rusty · 01-15-2014, 09:13 PM

I've had a driving instructor yell at me for hitting the brakes in a turn. Told him I didn't. Reviewing my GoPro, it shows that I didn't. The car was doing it, itself.

1slow370 · 01-15-2014, 10:06 PM

parts of the traction control you normal can't shut off include the electronic rear differential brake assist which will brake the inside wheel in a turn to send power to the outside wheel, the abs(which has no sport mode), and the accel/brake interlock(anti-burnout function)

Z&I · 01-15-2014, 10:25 PM

Quote:

Originally Posted by 1slow370

parts of the traction control you normal can't shut off include the electronic rear differential brake assist which will brake the inside wheel in a turn to send power to the outside wheel, the abs(which has no sport mode), and the accel/brake interlock(anti-burnout function)

who's drivin' who ???

1slow370 · 01-15-2014, 10:57 PM

In Soviet russia Z drives you, In capatalist america if you don't like it unplug that ****

Z&I · 01-15-2014, 11:08 PM

Quote:

Originally Posted by 1slow370

In Soviet russia Z drives you, In capatalist america if you don't like it unplug that ****

Hey Slo ... got a kick out of your reply ... VDC/NG

!!!

11-02-2013, 04:09 PM	#20 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	Every performance car (hell, even a minivan) will eventually put you in your place at some point, with or without traction control disabled. The solution is more driver training. Even if you're not going to make a serious hobby of it in the long term, it would help a ton if everyone who buys a sporty car would at least do 1-3 weekends of instructor-led HPDE stuff. It's not that expensive and doesn't require a lot of crazy car mods at that level, and it really does teach you a lot about traction and suspension management via your inputs. Jamesb1 likes this. __________________ 7AT Track Car! Journal thread / Car setup details

01-15-2014, 03:43 PM	#21 (permalink)
DrivenSoul Base Member Join Date: Jan 2014 Location: Garden Grove Posts: 3 Drives: Fit-Turbo IS350 RX-7 Rep Power: 11	I helped my friend who has a 370Z disable his VDC. It was difficult to find much info on how to do it, but I helped a friend with a 350Z do it before and figured it should be pretty similar. You can ALMOST reach it if you take off the cupholder, but removing the center console seems to be the only way to go. The VDC controller will come into plain view as soon as the console comes off. I wanted to make a switch to deactivate it anytime without going through the whole console removal again, so I had to pick a wire to cut and test.. There is a black wire which I assume is ground and it works well for what I intended. When you use the switch, the sliding car symbol will light up steadily but the VDC light will not. I do not know if it affects anything, but we also disengage the normal traction control button in conjunction, lighting up the "VDC off" light. That light does not turn on when we use our new switch. Perceived differences: With the 350Z, it seems like throttle response for some reason is much more touchy with the full disengagement of VDC. It's difficult to rev-match because just slightly touching the gas pedal will shoot revs up instantly and abundantly. For the 370, I didn't see the same results. Fast cornering was pretty scary with the 370Z before. It's like you "think" everything is off because you push the switch, but the car doesn't feel normal. It never sinks into oversteer or understeer, it feels like it just keeps turning. While this sounds like a good thing, it made me feel nervous because I didn't know how the car would react if I ever went past that threshold. I've had a couple instances of trying to play past the car's grip level and the car in return gave me awkward responses, for example I would try to get the car to start sliding, but a lot of times power is cut and I end up losing all momentum, or I get it to begin sliding and then suddenly the VDC kicks in and my correct amount of countersteer suddenly becomes me directing the car WAY off-line. With VDC fully off, the car does what I expect it to, it has power if I press down on the throttle and naturally slides if I provoke the rear end enough. It actually feels more confident and easy to drive with everything turned off. If I make a mistake, the car will show me instead of brushing it under the rug. Anyways I just wanted to give my input and experience with it because I'm sure some people are curious about doing it. Don't worry... You're not going to crash unless you're doing something really really wrong! Last edited by DrivenSoul; 01-15-2014 at 03:47 PM.

01-15-2014, 03:51 PM	#22 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	Its not a vdc controller its the yaw sensor, and its nothing new This was brought up back in 09. also a momentary interupt button in the yaw sensors power wire is all you need. just have to cut its power until the car decides its "faulty" and it will be off until you turn the car on again. SPOHN likes this. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50 Last edited by 1slow370; 01-15-2014 at 03:53 PM.

01-15-2014, 06:37 PM	#25 (permalink)
wstar A True Z Fanatic Join Date: Mar 2009 Location: Houston, TX Posts: 4,024 Drives: too slow Rep Power: 3594	The major difference between "VDC Off" and "Unplug the Yaw Sensor" is TCS (the really basic traction control that doesn't do as much as VDC) and ABLS (Antilock Brake Limited Slip). I think both are still active when you just turn off VDC with the button (but are dead dead dead when the yaw sensor is gone). ABLS in particular can really screw up a corner. It lightly taps individual rear brakes to try to assist the LSD with the rear wheel speed differentials. If you're trying to corner at the limit, those random brake taps can really screw with you. Rusty, JWillis72 and DrivenSoul like this. __________________ 7AT Track Car! Journal thread / Car setup details

01-15-2014, 09:13 PM	#26 (permalink)
Rusty Ronin Samurai - Assassin Join Date: Dec 2011 Location: Fayettenam,Pennsyltucky Age: 68 Posts: 35,186 Drives: 2011 Nismo GM 6M Rep Power: 2684437	I've had a driving instructor yell at me for hitting the brakes in a turn. Told him I didn't. Reviewing my GoPro, it shows that I didn't. The car was doing it, itself. JWillis72 and G37Some like this. __________________ 浪人 - 殺し屋 "The Difficult Anytime, The Impossible By Appointment Only" http://www.the370z.com/members-370z-...o-journal.html

11-02-2013, 03:09 PM	#17 (permalink)
Jamesb1 Base Member Join Date: Mar 2013 Location: Las Vegas, NV Posts: 11 Drives: Black 370z Rep Power: 12	I drive my 2013 6 speed 370z very aggressively. With the VDC off I have noticed that the car does correct itself when doing a burn out. It stays nice and straight without any effort. I suspected that the VDC was still partially ON. It seems I was right. I think it works perfect because you can spin the rear tires but you can feel the car correcting itself when it drifts left or right.

01-15-2014, 04:05 PM	#23 (permalink)
DrivenSoul Base Member Join Date: Jan 2014 Location: Garden Grove Posts: 3 Drives: Fit-Turbo IS350 RX-7 Rep Power: 11	I couldn't find all the info in one place on how to do it or a review about how it changed the car, so I just wanted to inform my findings

01-15-2014, 10:06 PM	#27 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	parts of the traction control you normal can't shut off include the electronic rear differential brake assist which will brake the inside wheel in a turn to send power to the outside wheel, the abs(which has no sport mode), and the accel/brake interlock(anti-burnout function) Z&I likes this. __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

01-15-2014, 10:57 PM	#29 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7251	In Soviet russia Z drives you, In capatalist america if you don't like it unplug that ** __________________ ANSWER PRICE LIST** Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

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