VDC off

Snakes709 · 05-18-2010, 09:24 PM

I read a mag artical while i was in the field with the army. It was about compairing a supercharged 350 vs twin turbo 370z. In the artical it said one of the things that were a PITA was the VDC on the 370z. They turned it off but like we all know it still has abit of control. They pulled fuses and everything and it still kicked in during heavy loads and tight turns. They mentioned there is a wire or something by the handbreak (under the center console) that has to be unplugged to kill the VDC 100%. I dont feel like going out and looking but does anyone know what wire or device they are talking about, im trying to find the artical now to post it.

Edit: Before anyone starts flaming me about having VDC off, i only turn it off when i race...really sucks when you take off and it cuts abit of power.

shabarivas · 05-18-2010, 09:27 PM

Are you sure you are not experiencing fuel cut when taking turns? I have tracked my car and with it off have not really felt it kick in...

Snakes709 · 05-18-2010, 09:29 PM

Quote:

Originally Posted by shabarivas

Are you sure you are not experiencing fuel cut when taking turns? I have tracked my car and with it off have not really felt it kick in...

no its the VDC, the display comes up even though i have VDC off. It usally kicks in during my burnouts, launches and shifts when i race at the drag strip, i want the system off 100% so i have full control.

Edit:

Quote:

Originally Posted by Xan

There is a Bosch modulator just in front of the e-brake, you need to unplug that one.

thank you, thats what it was.

shabarivas · 05-18-2010, 09:39 PM

Quote:

Originally Posted by Snakes709

no its the VDC, the display comes up even though i have VDC off. It usally kicks in during my burnouts, launches and shifts when i race at the drag strip, i want the system off 100% so i have full control.

Edit:

thank you, thats what it was.

It does not matter that the lines come up - they will no matter what if the car detects slip - if its kicking on / off is up to you the driver to determine

Xan · 05-18-2010, 09:43 PM

Quote:

Originally Posted by shabarivas

It does not matter that the lines come up - they will no matter what if the car detects slip - if its kicking on / off is up to you the driver to determine

Read the post in the other thread.

Better yet I'll copy two of them here:

Quote:

Originally Posted by Xan

How does RTFM help here?

The FM says:
The VDC OFF switch is used to turn off the VDC system. The VDC off indicator illuminates to indicate the VDC system is off. When the VDC switch is used to turn off the system, the VDC system still operates to prevent one drive wheel from slipping by transferring power to a non slipping drive wheel.

He said he knows how to turn off VDC, but traction control stays on.
To kill the traction control you have to open up your mid-console and rip out a Bosch modulator. That's not in the FM...

Quote:

Originally Posted by ChrisSlicks

This is correct. Traction control is still on even with VDC off.

However with street tires and LSD it doesn't really seem to be an issue at the auto-x. There typically isn't enough traction to lift the inside wheel to the point that it will spin freely so instead both wheels spin when you juice it in a corner. With sticky race tires it is a different story, and I've had the traction control intervene when trying to accelerate out of a corner. It's a little annoying but the intervention isn't that painful.

So yes, traction control is still on partially, but it only intervenes if there is a large differential in speed between the 2 rear wheels. You can still do burnouts and donuts to your hearts content if that is your thing.

Xan · 05-18-2010, 09:28 PM

There is a Bosch modulator just in front of the e-brake, you need to unplug that one.

Xan · 05-18-2010, 09:31 PM

Additionally similar question shutting off traction control

Snakes709 · 05-18-2010, 10:16 PM

Thanks Xan, and everyone else.

shabarivas · 05-18-2010, 11:56 PM

Oh yea - that makes sense... thanks for pointing it out - silly of nissan. We should really wire up a bypass that is linked to the VDC button...

1slow370 · 05-19-2010, 02:40 AM

modulator = yaw sensor just wanted to throw that out there

Push370zzz · 05-19-2010, 03:17 AM

I want to do this as well, just wire a switch in to turn off the yaw module. Anybody know of a DIY for this? I am assuming I can just wire a switch directly into the power source cable for the BOSCH device...

05-18-2010, 09:24 PM	#1 (permalink)
Snakes709 A True Z Fanatic Join Date: Aug 2009 Location: Edmonton Posts: 1,205 Drives: 2011 Evo-X GSR Rep Power: 17	VDC off I read a mag artical while i was in the field with the army. It was about compairing a supercharged 350 vs twin turbo 370z. In the artical it said one of the things that were a PITA was the VDC on the 370z. They turned it off but like we all know it still has abit of control. They pulled fuses and everything and it still kicked in during heavy loads and tight turns. They mentioned there is a wire or something by the handbreak (under the center console) that has to be unplugged to kill the VDC 100%. I dont feel like going out and looking but does anyone know what wire or device they are talking about, im trying to find the artical now to post it. Edit: Before anyone starts flaming me about having VDC off, i only turn it off when i race...really sucks when you take off and it cuts abit of power. __________________ 2011 Evo-GSR AMS 2.4 stroker/ bore, FP Black build in progress. Sponsor: DSG Performance

05-18-2010, 09:28 PM	#6 (permalink)
Xan A True Z Fanatic Join Date: Jan 2010 Location: MA Posts:99999999999999 Posts: 3,301 Drives: 370Z 40th Aniversary Rep Power: 24	There is a Bosch modulator just in front of the e-brake, you need to unplug that one. __________________

05-18-2010, 09:31 PM	#7 (permalink)
Xan A True Z Fanatic Join Date: Jan 2010 Location: MA Posts:99999999999999 Posts: 3,301 Drives: 370Z 40th Aniversary Rep Power: 24	Additionally similar question shutting off traction control __________________

05-18-2010, 10:16 PM	#8 (permalink)
Snakes709 A True Z Fanatic Join Date: Aug 2009 Location: Edmonton Posts: 1,205 Drives: 2011 Evo-X GSR Rep Power: 17	Thanks Xan, and everyone else. __________________ 2011 Evo-GSR AMS 2.4 stroker/ bore, FP Black build in progress. Sponsor: DSG Performance

05-19-2010, 02:40 AM	#10 (permalink)
1slow370 A True Z Fanatic Join Date: Aug 2009 Location: In the D Posts: 3,732 Drives: v8 74 260z ;) Rep Power: 7250	modulator = yaw sensor just wanted to throw that out there __________________ ANSWER PRICE LIST Answers - - - - - - - - - - - - - - - - $0.75 Answers (requiring thought) - - - - $1.25 Answers (correct) - - - - - - - - - - $12.50

05-18-2010, 09:27 PM	#2 (permalink)
shabarivas A True Z Fanatic Join Date: Apr 2009 Location: Sacramento, CA Posts: 2,188 Drives: 370z MB 6mt Rep Power: 914	Are you sure you are not experiencing fuel cut when taking turns? I have tracked my car and with it off have not really felt it kick in...

05-18-2010, 11:56 PM	#9 (permalink)
shabarivas A True Z Fanatic Join Date: Apr 2009 Location: Sacramento, CA Posts: 2,188 Drives: 370z MB 6mt Rep Power: 914	Oh yea - that makes sense... thanks for pointing it out - silly of nissan. We should really wire up a bypass that is linked to the VDC button...

05-19-2010, 03:17 AM	#11 (permalink)
Push370zzz Track Member Join Date: Jul 2009 Location: NE Age: 39 Posts: 649 Drives: cars Rep Power: 16	I want to do this as well, just wire a switch in to turn off the yaw module. Anybody know of a DIY for this? I am assuming I can just wire a switch directly into the power source cable for the BOSCH device... __________________ Range Rover Sport Supercharged Nissan 370z Touring + Sport