An easy bypass of the ABS, VDC, etc.... - Nissan 350Z Forum, Nissan 370Z Tech Forums
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post #1 of 6 (permalink) Old 04-28-2009, 09:39 AM Thread Starter
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I switch my pads from street to race for track days....I coach with HOD HPDE's.... and HATE when the ABS kicks in to easy with track pads. I haven't tried it yet but, I was told you can unplug the grey wire in the brake compartment (in the engine bay) and it will eliminate all the electronic nannies from the brake and handling system. My Z is at the shop to fix a camber issue (think I hit a rumble strip too hard at the track) but when I get it back I am going to give this a go.
Someone else give it shot in the meantime and post the results. This is HUGE for we track junkies if it works

Factory Five Cobra Levy Racing Built
Stage 3 Levy racing 347
Baer racing brakes
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Halibrand wheels
0 to 60 3.5 sec, 160 MPH Top End.

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2003 350Z-6 spd Chrome Silver Touring
GTM built forged motor, STS Single turbo
Willwood BBK (6 pot & 4 pot) Hotchkis Swaybars
Eibach Pro's & Koni's Probuilt Flywheel & 6 puck clutch
AEM & Autometer gauges 350Z source bumber
BCR harness bar /impact racing 6 point harness
Carbon Fiber TS rear diffuser
Mahadi 19's 245Frnt, 275Rear T1R's (street)
ROTA 18's 265Frnt, 285Rear BFG R1's (Track)

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post #2 of 6 (permalink) Old 04-28-2009, 10:23 AM
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Unplug the ABS unit, and it kills the ABS/TCS (and your speedo and odo). I already do this. Bear in mind I have no idea what it does to the EBD, so I'm not sure how good it would be to do. You may have a really bad brake bias as a result, but not one I've noticed commuting.

On the TCS-only models if you pop open the brake compartment cover, in the corner where the ABS motor sits there's a big plug. It's not just a single wire, but a big rectangular plug. It has a lever to lock the plug into place, and putting that lever into the unlocked position is all you need to do. It plugs into the black thing at the top of this ABS pump:



On the VDC models there are 2/3 plugs going into the unit, so your required actions may vary.

"I swear, officer, its all factory options!"


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Understeer is when you hit the tree with the front wheel.
Oversteer is when you hit it with the back.
Horsepower is how hard you hit the tree...
Torque is how far you drag it...
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post #3 of 6 (permalink) Old 04-28-2009, 12:00 PM Thread Starter
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QUOTE (scathing @ Apr 28 2009, 05:23 AM)
Quote:
Unplug the ABS unit, and it kills the ABS/TCS (and your speedo and odo). I already do this. Bear in mind I have no idea what it does to the EBD, so I'm not sure how good it would be to do. You may have a really bad brake bias as a result, but not one I've noticed commuting.

On the TCS-only models if you pop open the brake compartment cover, in the corner where the ABS motor sits there's a big plug. It's not just a single wire, but a big rectangular plug. It has a lever to lock the plug into place, and putting that lever into the unlocked position is all you need to do. It plugs into the black thing at the top of this ABS pump:



On the VDC models there are 2/3 plugs going into the unit, so your required actions may vary.

Good input...thanks. I am going to play around with this once I get my car back. Anybody else out there have an opinion???

Factory Five Cobra Levy Racing Built
Stage 3 Levy racing 347
Baer racing brakes
Four corner coil overs
Halibrand wheels
0 to 60 3.5 sec, 160 MPH Top End.

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2003 350Z-6 spd Chrome Silver Touring
GTM built forged motor, STS Single turbo
Willwood BBK (6 pot & 4 pot) Hotchkis Swaybars
Eibach Pro's & Koni's Probuilt Flywheel & 6 puck clutch
AEM & Autometer gauges 350Z source bumber
BCR harness bar /impact racing 6 point harness
Carbon Fiber TS rear diffuser
Mahadi 19's 245Frnt, 275Rear T1R's (street)
ROTA 18's 265Frnt, 285Rear BFG R1's (Track)

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post #4 of 6 (permalink) Old 04-29-2009, 09:35 AM Thread Starter
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OK...I tried this out and it works very well. Just unplug the connector running to the aluminum block with all of the brake lines going into and this will bypass ABS, VDC, and SLIP only. Nothing else is elminated or is out of wack.....use some caution and the tires will now lock up under full brake. Dash light come on (ABS, VDC off, SLIP) however when the wire is plugged in and the key off for 15 secs everything is reset. My Z is an 03 touring with virtually nothing stock for suspension, brakes or power. Give it try for yourself.- Jim

Factory Five Cobra Levy Racing Built
Stage 3 Levy racing 347
Baer racing brakes
Four corner coil overs
Halibrand wheels
0 to 60 3.5 sec, 160 MPH Top End.

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2003 350Z-6 spd Chrome Silver Touring
GTM built forged motor, STS Single turbo
Willwood BBK (6 pot & 4 pot) Hotchkis Swaybars
Eibach Pro's & Koni's Probuilt Flywheel & 6 puck clutch
AEM & Autometer gauges 350Z source bumber
BCR harness bar /impact racing 6 point harness
Carbon Fiber TS rear diffuser
Mahadi 19's 245Frnt, 275Rear T1R's (street)
ROTA 18's 265Frnt, 285Rear BFG R1's (Track)

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post #5 of 6 (permalink) Old 04-29-2009, 12:49 PM
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QUOTE (JimZ350 @ Apr 29 2009, 09:35 PM)
Quote:
OK...I tried this out and it works very well. Just unplug the connector running to the aluminum block with all of the brake lines going into and this will bypass ABS, VDC, and SLIP only. Nothing else is elminated or is out of wack.....
Your speedo and odo still work?

"I swear, officer, its all factory options!"


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Understeer is when you hit the tree with the front wheel.
Oversteer is when you hit it with the back.
Horsepower is how hard you hit the tree...
Torque is how far you drag it...
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post #6 of 6 (permalink) Old 04-29-2009, 03:51 PM Thread Starter
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QUOTE (scathing @ Apr 29 2009, 07:49 AM)
Quote:
Your speedo and odo still work?
Everything worked just fine.

Factory Five Cobra Levy Racing Built
Stage 3 Levy racing 347
Baer racing brakes
Four corner coil overs
Halibrand wheels
0 to 60 3.5 sec, 160 MPH Top End.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


2003 350Z-6 spd Chrome Silver Touring
GTM built forged motor, STS Single turbo
Willwood BBK (6 pot & 4 pot) Hotchkis Swaybars
Eibach Pro's & Koni's Probuilt Flywheel & 6 puck clutch
AEM & Autometer gauges 350Z source bumber
BCR harness bar /impact racing 6 point harness
Carbon Fiber TS rear diffuser
Mahadi 19's 245Frnt, 275Rear T1R's (street)
ROTA 18's 265Frnt, 285Rear BFG R1's (Track)

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