Lost Time

I'm planning on removing my ABS for various reason but I can't seem to find much info on doing it. Has anyone already done this and exaclty what's involved in removing it? Any info would be great.

Mahjik

iTrader: (1)

PM jspecracer7, he has a HOW-TO:

https://www.rx7club.com/forum/showth...ght=remove+abs

https://www.rx7club.com/forum/showth...ght=remove+abs

Just FYI, as stated in the last thread, it's not recommended if you have the stock rims.

Lost Time

Thank you sir.

851stgen12a

Why would you want to get rid of the ABS??

MtnRacer

When you get good enough at braking, ABS becomes more of a hinderance than a help. It weighs a lot.

Steve

SPOautos

What about for a street car???

There are a lot of guys running on the track with larger wheels and abs and I've never heard any other them mention abs being obsolete and not working on thier cars now that they have larger wheels.

I've only ever heard like one person mention this and is it possible that it wasnt working right due to something other than the larger sized wheels? Maybe it had some mechanical falures to begin with???

STEPHEN

rynberg

That may be true on the track in racing conditions, but not on the street. A car with properly functioning ABS will ALWAYS stop faster and be easier to control on dry or wet pavement than a car without. The only times ABS can be a hindrance is when a)braking on a sandy/gravelly type of surface or b)some ABS systems do get confused by running larger diameter wheels.

And not too many of us can go instantly to threshold braking and STILL concentrate on steering the car, something that ABS allows.

Don't mean to rant but I think it is ridiculous to remove the ABS for street driving. Hell, even Ferraris, Lambos, and finally the Viper use ABS.

MtnRacer

Keep in mind guys, I'm speaking from a 2nd gen viewpoint, I don't know anything about the 3rd gen ABS system, but I'm willing to bet it's far superior than that of the 2nd gen. But as far as removal goes, some people(myself included) prefer the feel of manual brakes. With ABS, you lose total control over the braking system in exchange for marginally faster braking. Call me old school, but I've driven with and without, and I prefer without. For street use however, ABS is always a good idea.

Steve

sbaker25

ABS will *NOT* always stop faster than without. If I'm not mistaken, the FD has a 3 circuit system. One of the rear wheels that is doing a fair share of braking may be released because the other is on a slippery surface resulting in lower net braking force provided by the rear wheels.

That said, I am not suggesting that removing ABS from a street car is a good idea.

Another motivation for track cars that has not been mentioned is that some sanctioning bodies give a weight penalty to cars with ABS.

sbaker25

Removing ABS does not yield a manual braking system. It yields a braking system without ABS. Converting to manual brakes is more involved.

suganuma

Isn't it really saying that it is not improving anything if you have the same rolling diameter (which you should). As others stated, the test was run using tires that increased the rolling diameter almost an inch.

Is it simply a factor of rolling diameter or is it also a factor of the contact patch, i.e. how wide your tires/wheels are?

TIA,

Nic

DamonB

True. But your only choice of modulation without ABS is to modulate all four wheels at the same time, because all you can do is release pedal pressure. The ABS can at least control the two fronts (which generate the far majority of the braking power) individually and that is a big advantage.

Batguano

I am planning to attend a racing school at VIR in Feb. I am told that the instructor will advise to lock wheels in the event of an on track spin rather than try to recover. They recommend not using ABS. Now, if I pull the fuse for the ABS, will that give me a simple braking system?

DamonB

Yes.

Their advice to lock the tires in a spin is to keep your car from going "everywhere". If the tires are locked once the car begins to spin, the car will keep traveling along the trajectory it was going just before the spin. If you try and fight it but don't get it right you could easily spin from one side of the track to the other, back again etc. At least with the brakes locked other drivers know where you are headed and don't get suprised.

eoph

wat is the diff between manual and abs brakes?

DamonB

The FD has power brakes along with ABS. If you disable the ABS you still have power brakes.

Manual brakes do not have the big vacuum assist brake booster behind the master cylinder.

Cheers!

you remove the ABS because the ABS pump starts leaking. Because the engineers at Mazda decided to put the ABS pump right above the glowing red hot turbo so it could cook the **** out hte seals in the ABS pump.

Then it starts leaking and you shop around for a non leaking ABS pump for a 15 year old FC and they all leak because they all got cooked. Then you goto the dealer and they want 1500 USD for a new one and no rebuilt units are offered.

So you have to remove it because brake fluid is gushing out of the damn pump now and ui have no choice.
=)

Gene

iTrader: (1)

That's why I have no abs in mine! I bought a used one for cheap, it started leaking after 2 weeks. I decided I'd had enough of that crap.