Brake and clutch issues for the new racer platform

[belgiumbarry]

who needs ABS ...that's only alot dead weight....

[mark kibort]

the 928 abs is almost useless on the track, and if you try and use it, you could be in BIG trouble. . However,what I have found it to be good for, is an early warning system for lockup, especially in those hard transission corners that also have threashold braking. Ive driven the car both ways over the years. basically, you get the same feeling as locking up the No-ABS system, but with more of it when a tire does start to lock up. basicallly, just a flat spot protector, no more. at a cost of 10lbs or so, and no requirement to change the lines to a non-abs system, its worth it.

mk

Originally Posted by belgiumbarry

who needs ABS ...that's only alot dead weight....

[mark kibort]

Saturday sounds good. I dont want to bury your saturday, but maybe we can just do something quick to see if we can get the ABS to free up the one line.

thanks

Mk

Originally Posted by SharkSkin

The PDF that I mentioned above has a nice schematic of the ABS unit. The solenoids are just that -- they directly act on the shuttle valves that first block off pressure from the MC to the caliper, then as the current to the solenoid increases a passage is opened that allows the ABS pump to relieve pressure on the caliper. The problem here seems to bee that the DS solenoid is not returning fully to its "at rest" position.

I can be there by 11:30 or so Sat.

Do you have a loose battery? If you do we can use that to bypass the car's electrical system so we are working with just the ABS unit. I'll bring my control box and the spare pump.

[SharkSkin]

We looked into this yesterday, and managed to get flow out of the DS ine by cycling the ABS solenoid on that side. However, we're not real confident in the outcome -- the flow stopped a few times, we got it going then it stopped again.... not real confidence-inspiring. The two ABS units that I have also seem to have dead/stuck solenoids; I'll be looking into whether that is electrical or mechanical later on today. Anyone know of a place where these units can be reconditioned?