Pulling the ABS fuse
09-03-2017, 02:33 PM
#11
Correct, although maybe I shouldn't expand due to competitive advantage...
Kidding.
Before I go further, please realize this is based on a generalization of how EBD works. I don't have knowledge of how the S2000 is setup specifically and this goes out the window if you alter the braking system (pads, caliper piston size, rotor diameter, etc.).
The S2000 doesn't have an old-school proportioning valve but instead relies on the ABS system to modulate rear brake pressure (EBD) to achieve max decel. Without this, the rears will lock prematurely and you will not get as much decel as you would with working EBD.
YMMV
Kidding.
Before I go further, please realize this is based on a generalization of how EBD works. I don't have knowledge of how the S2000 is setup specifically and this goes out the window if you alter the braking system (pads, caliper piston size, rotor diameter, etc.).The S2000 doesn't have an old-school proportioning valve but instead relies on the ABS system to modulate rear brake pressure (EBD) to achieve max decel. Without this, the rears will lock prematurely and you will not get as much decel as you would with working EBD.
YMMV
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09-03-2017, 02:40 PM
#12
I think everybody should do a few dozen sessions on track without ABS at a minimum. I've found most people now cannot threshold brake at all in advanced DE groups, whereas ABS wasn't super common in track cars in the late 90s to early 2000's(cars from late 80s to early 90s mostly), so everybody could threshold brake.
Most now just seem to mash the middle pedal way too hard and let the computer sort it out. If you engage ABS more than a few times a session you're using it as a crutch, and an S2000 totally stops better without getting into ABS. So I don't see how it will increase stopping distances unless you cannot threshold brake.
Most now just seem to mash the middle pedal way too hard and let the computer sort it out. If you engage ABS more than a few times a session you're using it as a crutch, and an S2000 totally stops better without getting into ABS. So I don't see how it will increase stopping distances unless you cannot threshold brake.
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The following 3 users liked this post by SakeBomb Garage:
09-03-2017, 04:43 PM
#13
I never turned it off, brakes worked really well and I had enough on my hands really getting comfortable with them. Even 3 days on the track and I still felt like I was learning/getting more comfortable with the new setup. I not once locked wheels or engaged ABS. I will start ratcheting things up a bit and possibly look into pulling the fuse at some point.
09-04-2017, 02:35 PM
#14
Another layer to the issue is that the brake system is designed around the ABS unit being part of the brake distribution. Modern cars rely on the electronics to expand the performance envelop and as a result turning them off can cause that envelope to shrink. EBD is able to do more advanced things with brake bias than the proportioning valves on 80s and 90s cars. Its not a given than the brake bias without EBD is remotely correct on modern cars as the foundation brake hardware is designed knowing that EBD will be there. Turning EBD off is like removing the prop valve on a 80s car, the brakes will be far to rear biased and the performance will suffer greatly.
09-04-2017, 10:27 PM
#15
You forgot to add "on flat smooth dry asphalt while going in a straight line". Of course there are times where you can outperform ABS but in general thats only going to be in laboratory conditions, as soon as you add in bumps, turns, rain etc. you will be much better with ABS on. And on DBW cars without a prop valve you must leave it on to have reasonable brake distribution.
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Check some of our most popular products for the S2000:
- Ohlins DFV Billet Lower Mount
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Check some of our most popular products for the S2000:
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- Rear BBK RX-8 Caliper Conversion
- Front BBK AP Competition
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Last edited by SakeBomb Garage; 09-04-2017 at 10:36 PM.
09-05-2017, 05:17 PM
#16
I just messed around with it a bit on the streets and it most definitely locks the rear brakes. Even with the BBK, I was easily locking the rears, which is shocking how I can go from riding the front ABS "semi locking" the fronts to straight locking the rears, simply by pulling the fuse. I will say that it may not be a great idea unless you have $ for new tires.
09-05-2017, 09:12 PM
#17
I just messed around with it a bit on the streets and it most definitely locks the rear brakes. Even with the BBK, I was easily locking the rears, which is shocking how I can go from riding the front ABS "semi locking" the fronts to straight locking the rears, simply by pulling the fuse. I will say that it may not be a great idea unless you have $ for new tires.
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Check some of our most popular products for the S2000:
- Ohlins DFV Billet Lower Mount
- Rear BBK RX-8 Caliper Conversion
- Front BBK AP Competition
- Setrab Oil Cooler Kit
SAKEBOMB GARAGE > Click here to contact Us
Check some of our most popular products for the S2000:
- Ohlins DFV Billet Lower Mount
- Rear BBK RX-8 Caliper Conversion
- Front BBK AP Competition
- Setrab Oil Cooler Kit
