Has Anyone Done An ABS Delete? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Pure Automotive · 11-16-2014, 02:53 PM

Hey guys, just trying to get some feedback here if anyone has tried an ABS delete. Due to having engine swaps and drag race setups our ABS is always off anyways so we're planning to just delete it. I can't find a lot of literature on the plumbing of the stock ABS setup. I will be going with a new master cylinder and all new lines from there.

My questions are:
Does the ABS unit have any control over F/R bias ?
Where is the factory prop valve?
Has this been done successfully?
Which line coming off the stock master cylinder does what?

Thanks in advance for any help!

Calum · 11-16-2014, 05:25 PM

You might want to take a look through this thread. I don't know if it'll answer your questions or just raise more questions, but it might be relevant.

D'oh

http://www.ft86club.com/forums/showthread.php?t=75598

raven1231 · 11-16-2014, 05:29 PM

Quote:

Originally Posted by Calum

You might want to take a look through this thread. I don't know if it'll answer your questions or just raise more questions, but it might be relevant.

Might help to post the thread

Ultramaroon · 11-16-2014, 05:45 PM

puma · 11-16-2014, 05:51 PM

F/R bias is elecronically controlled Inside the ABS i beleive

prop valve is in the abs

I have bypassed the abs on our race car and it works much better than just having it without any power.

So yes, it can be done. We kept the abs electronic to still have the wheels speed sensor.

raven1231 · 11-16-2014, 05:54 PM

If for some reason those threads don't help, check out this one as well.

Pure Automotive · 11-16-2014, 07:41 PM

Quote:

Originally Posted by puma

F/R bias is elecronically controlled Inside the ABS i beleive

prop valve is in the abs

I have bypassed the abs on our race car and it works much better than just having it without any power.

So yes, it can be done. We kept the abs electronic to still have the wheels speed sensor.

That's great to know.

But you raised a point I didn't even think about, the wheel speed...

Pure Automotive · 11-16-2014, 07:43 PM

@puma, do you have anything controlling the bias now?

puma · 11-17-2014, 11:24 PM

no because it was just for testing, but we used different compound front and back and it worked nice.

Car is still under development but we are either changing for a balance bar or we will just put an adjustable proportionning valve for the rear

M23 · 11-18-2014, 04:21 AM

Just remove the fuse for good.. They didn't have abs in the 50s. Old school dawg.

puma · 11-18-2014, 08:43 AM

just taking out fuse of the abs is a bad idea because you get almost no rear brake whatsoever, the bias is all f?&ed uo when you do that.

either keep it or bypass it completly

M23 · 11-18-2014, 02:35 PM

Just remove the rear brake hardware too then dawg..rotorz, padz n 3veryth@ng. Saves dat weight and no need foh brakes anywayz dawg. ..jus keep the pedal to da metal dawg and run from da po-po after dat street race! No need foh breaks mah nig. Nah meen?

irax · 11-20-2014, 11:10 AM

The guys over at Part Shop Max are developing an ABS delete kit. You can se pics on their Facebook page.

executivekoala · 11-22-2014, 05:42 PM

^ I rode in Dan's car from PBM yesterday, felt way sick. Hydro e brake is linear and stops the abs kicking in. Even with tcs off I get abs pushing at my fronts all the time. I was going to get it done but I want to learn to drive without abs before I take the permanent plunge.

11-16-2014, 02:53 PM	#1
Pure Automotive Join Date: Nov 2012 Drives: 2013 FRS Whiteout Location: Millersville, MD Posts: 2,035 Thanks: 735 Thanked 1,952 Times in 650 Posts Mentioned: 147 Post(s) Tagged: 0 Thread(s)	Has Anyone Done An ABS Delete? Hey guys, just trying to get some feedback here if anyone has tried an ABS delete. Due to having engine swaps and drag race setups our ABS is always off anyways so we're planning to just delete it. I can't find a lot of literature on the plumbing of the stock ABS setup. I will be going with a new master cylinder and all new lines from there. My questions are: Does the ABS unit have any control over F/R bias ? Where is the factory prop valve? Has this been done successfully? Which line coming off the stock master cylinder does what? Thanks in advance for any help!

11-16-2014, 05:25 PM	#2
Calum That Guy Join Date: Dec 2011 Drives: 2013 asphalt FRS MT Location: Halifax, Nova Scotia Posts: 4,865 Thanks: 5,058 Thanked 2,868 Times in 1,499 Posts Mentioned: 82 Post(s) Tagged: 1 Thread(s)	You might want to take a look through this thread. I don't know if it'll answer your questions or just raise more questions, but it might be relevant. D'oh http://www.ft86club.com/forums/showthread.php?t=75598 Last edited by Calum; 11-16-2014 at 06:03 PM.

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Ultramaroon not playing cards Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 32,396 Thanks: 53,053 Thanked 37,225 Times in 19,308 Posts Mentioned: 1117 Post(s) Tagged: 9 Thread(s)

11-16-2014, 05:51 PM	#5
puma crew chief Join Date: Mar 2014 Drives: Race car FR-S Location: Quebec Posts: 378 Thanks: 6 Thanked 189 Times in 82 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	F/R bias is elecronically controlled Inside the ABS i beleive prop valve is in the abs I have bypassed the abs on our race car and it works much better than just having it without any power. So yes, it can be done. We kept the abs electronic to still have the wheels speed sensor.

11-16-2014, 05:54 PM	#6
raven1231 Senior Member Join Date: Aug 2013 Drives: 2013 Firestorm FR-S, 2016 DGM WRX Location: Cincinnati, Ohio Posts: 4,580 Thanks: 8,264 Thanked 3,118 Times in 1,667 Posts Mentioned: 24 Post(s) Tagged: 1 Thread(s)	If for some reason those threads don't help, check out this one as well.

11-16-2014, 07:43 PM	#8
Pure Automotive Join Date: Nov 2012 Drives: 2013 FRS Whiteout Location: Millersville, MD Posts: 2,035 Thanks: 735 Thanked 1,952 Times in 650 Posts Mentioned: 147 Post(s) Tagged: 0 Thread(s)	@puma, do you have anything controlling the bias now?

11-17-2014, 11:24 PM	#9
puma crew chief Join Date: Mar 2014 Drives: Race car FR-S Location: Quebec Posts: 378 Thanks: 6 Thanked 189 Times in 82 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	no because it was just for testing, but we used different compound front and back and it worked nice. Car is still under development but we are either changing for a balance bar or we will just put an adjustable proportionning valve for the rear

11-18-2014, 04:21 AM	#10
M23 Banned Join Date: Sep 2014 Drives: 86 Location: Penisville SoCal Posts: 344 Thanks: 197 Thanked 88 Times in 58 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Just remove the fuse for good.. They didn't have abs in the 50s. Old school dawg.

11-18-2014, 08:43 AM	#11
puma crew chief Join Date: Mar 2014 Drives: Race car FR-S Location: Quebec Posts: 378 Thanks: 6 Thanked 189 Times in 82 Posts Mentioned: 14 Post(s) Tagged: 0 Thread(s)	just taking out fuse of the abs is a bad idea because you get almost no rear brake whatsoever, the bias is all f?&ed uo when you do that. either keep it or bypass it completly

11-18-2014, 02:35 PM	#12
M23 Banned Join Date: Sep 2014 Drives: 86 Location: Penisville SoCal Posts: 344 Thanks: 197 Thanked 88 Times in 58 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	Just remove the rear brake hardware too then dawg..rotorz, padz n 3veryth@ng. Saves dat weight and no need foh brakes anywayz dawg. ..jus keep the pedal to da metal dawg and run from da po-po after dat street race! No need foh breaks mah nig. Nah meen?

11-20-2014, 11:10 AM	#13
irax Senior Member Join Date: Aug 2013 Drives: 2015 Subaru BRZ WRB Location: Pflugerville Posts: 249 Thanks: 37 Thanked 127 Times in 69 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	The guys over at Part Shop Max are developing an ABS delete kit. You can se pics on their Facebook page.

11-22-2014, 05:42 PM	#14
executivekoala Senior Member Join Date: Mar 2013 Drives: fr-s Location: san diego Posts: 284 Thanks: 7 Thanked 96 Times in 62 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	^ I rode in Dan's car from PBM yesterday, felt way sick. Hydro e brake is linear and stops the abs kicking in. Even with tcs off I get abs pushing at my fronts all the time. I was going to get it done but I want to learn to drive without abs before I take the permanent plunge.

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