2bridges

....... airbags too!

333pg333

Yeah, and we should take off brake boosters too!

333pg333

Is it the same ABS unit though John?

JET951

same ABS unit. superseded part number though and same abs control brain, again superseded part number

gt37vgt

the only problem i could imagine may arise is that after the conversion you might have to sit down to **** .
do a ballace bar conversion and then you can **** with deadly accuracy for 20 feet

333pg333

You guys are very funny....no really....

The brake bias idea is a good one, but even then, don't cars with all those Tilton setups and balance bars etc still have ABS nowdays?

Oh, and another thing. I am quite possibly going to be trying to use the traction control unit from the LINK at some stage. My thoughts were to plug into the ABS sensors which would be another reason to do the swap, however there may be another way. Also feel free to discuss.

gt37vgt

well i have spent a little time on rough sea's so i am practiced at sitting down to **** so have got a set of 968 brake sensors currently being set up .
I herd they dropped abs for the 997gt3 cup cars .
I'm really not that against ABS I just feel there is many better ways to spend 100 man hrs and a few bucks to improve braking ..

Darwantae951

Patrick, did something happen to your car?

mattipuh

pls tell me more - what abs does in fault mode - doesn't work properly? had some issues with abs one day at track, and this might be the culprit?

late 80's abs tends to be rather slow - does it's trick on icy or very slippery road conditions, but on dry asphalt it could be better. In track where you usually know how you're braking in each corner, so you can anticipate your car's actions and such. on street it's different game, because things came up more suddenly.

if you didn't have abs, you could be able to balance brakes more to the limit than with abs.

btw, guess that bosch units that porsche has used for abs are used generally in other vehicles aswell. I would seek newest abs unit available (with low cost), and put it to the car. newer abs are way better than the old ones there is in our cars. it is of course different story if you already have all bits and pieces available.

333pg333

Bottom of page 3 Darwin...
https://rennlist.com/forums/944-turb...ight=halloween

Sure it's acknowledged that there is better ABS than the one from our cars, and I would be happy to entertain that if it was 1) A reasonable option 2) A rea$onable option. If Tony G comes back with any real data on the Boxter concept then it might be do able.

Be interesting to know if they did drop ABS from the GT3. Anyone know for sure? The only reason I am considering this is because I am used to ABS even though I can't remember feeling it activate on the track. I have felt it at the end of our Auto X when you have to stop really quickly.
I have seen the brakes lock at a minor level on Sean's / JET951's '86 at the end of Oran Park straight and it occurred to me that not having mine lock is better. That being said, Sean is bloody quick as it is so maybe it's not such a disadvantage...I dunno....

gt37vgt

I think on todays tires good adjustable brake set up is far superior to 1980's ABS.
there was talk of dropping the abs for carrera cup but just to make it better to watch not to make it faster ..On modern cars ABS and PSM and similar systems are awesome.but that is modern stuff with modern prices .

Duke

It's not dropped on the regular GT3! The GT3's and GT2's even have ESP and all kinds of electronic safety net's nowadys.

Some of the GT3 race cars don't have ABS but that mainly comes down to rules in different classes etc.

If you don't have experienced the abs on the track you must be braking too soft?
If you have enough braking power you will lock up the tires if you use them 100%. If you brake less you're not stopping as fast as you could IMHO. I have logs of braking 200-100 km/h in 2.9 sek in my car, without ABS my tires would have been trash

thingo

I have seen enough people ruin their day flat spotting tyres to know that being 'old school' is being slower, even with the 951 you can trail brake further into the corner.

gt37vgt

data logging and experimenting with set up will yield better results than an 80's ABS conversion

fast951

Every now and then, on the track, you can trigger a error in the ABS system. I noticed this when you hit a rumble strip (usually at the Apex), or when you get one wheel off the ground. The ABS wheel signals can go out of sync, which causes the ABS to operate in failure mode (meaning no ABS, but the brake system still operational). To get ABS back, you have to reset it. Resetting the ABS is done by powering OFF the ABS brain. You can switch ignition key OFF/ON (not recommended while moving for the obvious reason), or you can disrupt power to the ABS brain via a toggle switch on the power supply to the ABS brain. You can do this while the car is moving.
When the ABS is in fault mode, you will get the ABS light on the dash, and your braking system remains operational but now ABS.