H Potter Posted October 8, 2009 Share Posted October 8, 2009 Hey guys Does anyone know how to disable the ABS? Want a way where it can be disabled for trackdays/general debauchery and switched back on again quickly. Was speaking to a local mechanic who specialises in Jap tuners. Says that generally theres a fuse you can just take out and pop back in again. Then he had a look at my Datsun - apparently the ABS fuse is linked to the ECU so diabling ABS disables the car! Anyone know a way around this??? Cheers H Quote Link to comment Share on other sites More sharing options...
Mark@Abbey m/s Posted October 9, 2009 Share Posted October 9, 2009 Cant be done I am afraid. Turning the ABS off on a 350z puts a load of stuff into limp home. Just turn the traction ( which is rubbish) off , cars are proepr fun then. Quote Link to comment Share on other sites More sharing options...
Chris`I Posted October 9, 2009 Share Posted October 9, 2009 Really annoying you cant kill stuff properly on a Zed. Even when disabling TC, it doesnt turn off ESP as far I am aware, so you still get some "help" from the car! Quote Link to comment Share on other sites More sharing options...
andlid Posted October 9, 2009 Share Posted October 9, 2009 get a full replacement ECU http://www.motec.com/ Heard from a youtube dude running around the ring that you can turn off the ESP stuff even more... not sure thats true now but hey... The ABS stuff is obviously a safety feature? Quote Link to comment Share on other sites More sharing options...
H Potter Posted October 9, 2009 Author Share Posted October 9, 2009 get a full replacement ECU http://www.motec.com/ HAHA I knew that was coming!!! Turning off ESP turns off TC AND the skid control element of ESP. I've done a couple of car control courses with the car and it offers help somewhere between the region of zero and f%$k all! So no need to "turn it off further". I have it off all time now anyway. I really dont mind health and safety as long as you can turn it off (actually thats bull54!t health and safety's gone far too far and I hate it as a result!) - on a car like this we should be able to turn off ABS for track days etc I'll check out the link, look into the cost of a new ECU and no doubt decide that it's not worth it and just to save my money for a new car that doesn't try to double up as my grandma...probably a Caterham H Quote Link to comment Share on other sites More sharing options...
CARBON FORZA Posted October 9, 2009 Share Posted October 9, 2009 hold on few minutes boys, i'll explain how it's done Quote Link to comment Share on other sites More sharing options...
Greekman Posted October 9, 2009 Share Posted October 9, 2009 I cant see why you want the ABS off....especially when it works so well on the Zed.... I am not aware how the JDM ones are but when i deactivate the ESP on my 08 Z there is no help at all!!! Tested...more than a few times....on a track only that is!!! Quote Link to comment Share on other sites More sharing options...
CARBON FORZA Posted October 9, 2009 Share Posted October 9, 2009 right, here's what you do: * switch the car off - obvious * in the engine compartment find fuses - next to the battery * locate the ABS and TC fuse - big, multi-fuse thing in PINK * if you take the whole thing out your car won't star * in that multi-fuse there's 3 large ones and 2 small ones - you need to disable the outer large one * job done I suggest you do that by running wires and switch to the dashboard so you can switch it on and off whenever you wish. To activate ABS and TC again you need to switch the car off, connect the fuse and then start the engine I don't need to tell you it's not a good idea to do it on public roads right? For track use only Quote Link to comment Share on other sites More sharing options...
andlid Posted October 9, 2009 Share Posted October 9, 2009 right, here's what you do: * switch the car off - obvious * in the engine compartment find fuses - next to the battery * locate the ABS and TC fuse - big, multi-fuse thing in PINK * if you take the whole thing out your car won't star * in that multi-fuse there's 3 large ones and 2 small ones - you need to disable the outer large one * job done I suggest you do that by running wires and switch to the dashboard so you can switch it on and off whenever you wish. To activate ABS and TC again you need to switch the car off, connect the fuse and then start the engine I don't need to tell you it's not a good idea to do it on public roads right? For track use only h.potter. take photos and post in guides welldone Quote Link to comment Share on other sites More sharing options...
Ekona Posted October 10, 2009 Share Posted October 10, 2009 I cant see why you want the ABS off....especially when it works so well on the Zed.... How would you know?! Quote Link to comment Share on other sites More sharing options...
Chris`I Posted October 10, 2009 Share Posted October 10, 2009 I cant see why you want the ABS off....especially when it works so well on the Zed.... How would you know?! Doesnt stop him cooking the brakes, thats the upgrade Greekman needs Quote Link to comment Share on other sites More sharing options...
Greekman Posted October 10, 2009 Share Posted October 10, 2009 ??? tell me!!! is it better for the brakes??? wouldnt i ruin the tyres then???? i can smell tyre locks everywhere now!!! Quote Link to comment Share on other sites More sharing options...
CARBON FORZA Posted October 11, 2009 Share Posted October 11, 2009 in case if anyone wanders what fuse I was talking about... and the fuse itself: crappy phone so excuse the close-up but at least you'll have the idea. you can just see the wire across the fuse - it's connected to the original ESP switch in the car - that way when I flick it the entire thing shuts down Quote Link to comment Share on other sites More sharing options...
trackpig Posted June 19, 2010 Share Posted June 19, 2010 Can I confirm that removing this fuse will deactivate all ABS, TC and ESP functions without throwing up engine management lights? Cheers. Quote Link to comment Share on other sites More sharing options...
GT4 Zed Posted June 19, 2010 Share Posted June 19, 2010 Why would you want to disable ABS anyway in does not interfere with track work Its the TC/ESP you want to fully disable to get predictable control or am i wrong? I posted this way back on how to disable ESP and i know this chap well and he is qualified to give feedback. He does a consistent 08:10 BTG on the Ring. To totally cut the ESP, I added a switch to cut the ground wire on the yaw sensor harness. As soon as i push the switch, the 2 ESP indicators on the dashboard indicate a default and the ESP is totally off.ABS remains active. When you cut the power with the key and turn it back on you have the ESP back. I installed the switch in the little glove box in the center console behind the gear stick. http://www.notre350z.com/forum/files/up ... sp-off.jpg The thing with the red button is a LANC remote to trigger my video recorder installed in the glove box behind the passenger seat. So it's invisible for the ring marshalls :-) I dont remember the color of the ground wire (white and green ?...) but you can easily find it with an ohm-meter : 0 ohm with the chassis. Some prefer to cut the power wire (orange, N°3 on the plug). Quote Link to comment Share on other sites More sharing options...
trackpig Posted June 19, 2010 Share Posted June 19, 2010 Why would you want to disable ABS anyway in does not interfere with track work Its the TC/ESP you want to fully disable to get predictable control or am i wrong? I posted this way back on how to disable ESP and i know this chap well and he is qualified to give feedback. He does a consistent 08:10 BTG on the Ring. To totally cut the ESP, I added a switch to cut the ground wire on the yaw sensor harness. As soon as i push the switch, the 2 ESP indicators on the dashboard indicate a default and the ESP is totally off.ABS remains active. When you cut the power with the key and turn it back on you have the ESP back. I installed the switch in the little glove box in the center console behind the gear stick. http://www.notre350z.com/forum/files/up ... sp-off.jpg The thing with the red button is a LANC remote to trigger my video recorder installed in the glove box behind the passenger seat. So it's invisible for the ring marshalls :-) I dont remember the color of the ground wire (white and green ?...) but you can easily find it with an ohm-meter : 0 ohm with the chassis. Some prefer to cut the power wire (orange, N°3 on the plug). Thanks for the post Its not that I want to cut the ABS but I do want to be able to fully turn off the ESP and TC. I thought that removing the fuse would turn everything off in one go. If there is a way to only turn off the ESP (as you have mentioned) then thats very interesting. Do you have any more info on the wiring harness location and which wire a switch needs to be added? Thanks Quote Link to comment Share on other sites More sharing options...
GT4 Zed Posted June 19, 2010 Share Posted June 19, 2010 Its behing the center console when you remove the whole unit. There full guide with pics is in www.notre350.com and this chap's user name is Taurim. I registered so i could copy the guide with pics but was unable to do it for some tech reason and I have since lost access due to inactivity You may be luckier than me if you are IT savvy;) Quote Link to comment Share on other sites More sharing options...
trackpig Posted June 20, 2010 Share Posted June 20, 2010 Arh.. I was going to ask if was Taurim. I was watching his videos of the nurburgring yesterday! (I have a 8.31 min lap at the ring so 8.10 scares me!) I will register over there and see what I can find. I'll post it here if there is anything of note. Cheers. Quote Link to comment Share on other sites More sharing options...
andlid Posted June 20, 2010 Share Posted June 20, 2010 Reason to disable ABS: you can't brake as hard due to the ABS cutting in... mate of mine did some testing on the BMW race bike and just told them to take the ABS off! (all of the test drivers said...) and they did, It made braking very dodgy to say the least... I'd rather have it off to be honest. Quote Link to comment Share on other sites More sharing options...
GT4 Zed Posted June 20, 2010 Share Posted June 20, 2010 Reason to disable ABS: you can't brake as hard due to the ABS cutting in... mate of mine did some testing on the BMW race bike and just told them to take the ABS off! (all of the test drivers said...) and they did, It made braking very dodgy to say the least... I'd rather have it off to be honest. That is not a reason mate just anecdotal evidence and based on a bike ABS on its own prevents locking wheels under hard braking so you have control since a skidding wheel does eff all and this is a proven fact and has been used for decades successfully As such apart from improving braking control it reduces stopping distance. But i agree that this does not work on all surfaces eg gravel and ice but on the usual tarmac dry or wet it works. The issue is that modern ABS is linked with EBD,TCS, ESP, ASR, CBC or whatever accroym they come up with which electronically control the front-to-rear brake bias etc by usage of sensors on the wheels, steering wheel, brakes hydraulics, gyroscopic sensors etc and all under ECU control. These advanced systems are what we percieve as a hindrance sometimes when the ECU cuts in power or assist braking in anyway to prevent loss of control. But in this case unhelpful to you the driver assuming you know what you are doing even on track or on the road Personally, I would prefer a system like a switchdial which decreases electronic control in steps until all control is to the driver. eg race logic is decent aftermarket sytem.But such systems are expensive as OEM and will only be found in more expensive cars. The ESP button on the zed when pressed off reduces some electronic control but pure ABS remains and i have had no issues with this except in a few corners where you feel interuption but for a second or so. Even with the ESP on it hardly comes on if you are driving properly eg braking in straight line , using the right speed/ gear for a given corner, smooth steering inputs and together with good tires, right pressures and decent brakes etc:P The guide that my chap posted is the next best thing as it cuts off all electronic control except ABS. Carbon Forza guide is more extreme and cuts everything as far as i understand and i think that is plain dangerous even on track and even you are blessed with car control. Race cars can afford to do away with most sytems because they have better braking, handling, grip and aero and yet most racing drivers will prefer to have some sort of assistance but one that can be modulated to your style, track or conditions Quote Link to comment Share on other sites More sharing options...
andlid Posted June 20, 2010 Share Posted June 20, 2010 Maybe we can get some of the dudes that track cars to have their say? I'm merly stating from my own experience (on a bike more then car) that I prefer full control on the brakes, you shouldn't jam on the brakes so you lock them either way... the feel I got in the car was that (might been due to them boiling) it was hitting on and off when it really shouldn't... personal vote is OFF and if you lock your wheels you've misscalculated where you're braking SHOULD have started Braking point, entry point, apex, exit... vroom vroom Maybe MRLizard can point some input in here? Or someone else that has race track experience / training etc... Quote Link to comment Share on other sites More sharing options...
IanS16 Posted June 20, 2010 Share Posted June 20, 2010 There is a much better/easier way of tripping the ESP/TC off, just brake to a slow crawl and lightly apply the handbrake until the car comes to a halt. Should trip both leaving the lights on permanantly until key turn. Quote Link to comment Share on other sites More sharing options...
trackpig Posted June 20, 2010 Share Posted June 20, 2010 There is a much better/easier way of tripping the ESP/TC off, just brake to a slow crawl and lightly apply the handbrake until the car comes to a halt. Should trip both leaving the lights on permanantly until key turn. This is the kind of tip I am talking about! I will test it next time out. Cheers. I currently run a GSXR750 and a MNR R1 kit car on track so am used to driving without ABS or other driver aids. I still like my road cars to have ABS, TC and ESP. I just like to have the option to turn it off when I want. Quote Link to comment Share on other sites More sharing options...
Ekona Posted June 21, 2010 Share Posted June 21, 2010 If you're braking so hard that you're activating the ABS then you're either pressing the pedal too hard or your approach speed is too high IMHO. Disabling ABS really won't make you any quicker, being smoother will. Sometimes I find the Zed brakes a little over-servo'd and I wonder if it's this that people would like reduced, rather than the actual ABS control itself. Quote Link to comment Share on other sites More sharing options...
andlid Posted June 21, 2010 Share Posted June 21, 2010 If you're braking so hard that you're activating the ABS then you're either pressing the pedal too hard or your approach speed is too high IMHO. Disabling ABS really won't make you any quicker, being smoother will. Sometimes I find the Zed brakes a little over-servo'd and I wonder if it's this that people would like reduced, rather than the actual ABS control itself. IMO the ABS kicks in sooner then you would lock up your tires under hard braking on trackwork... I know I'm leaning back towards bikes but when you break on a bike if it had ABS you'd be fubar... Sometimes you hit the front brake so hard that the rear went up in the air! Anyhu, I'm going to ask the ABS questions on another place and see what they come back with Quote Link to comment Share on other sites More sharing options...
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