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964 ABS delete?

Old 07-07-2010, 01:24 PM
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I drove a friend's 964 with no abs and still have the small rear calipers with no issues or wheel locking. may be I should disable it first and try it before making my mind up. when budget allows will do the tilton.
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Old 07-07-2010, 03:34 PM
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I hate how abs works in a spin or backwards, very unsafe.
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Old 07-07-2010, 03:41 PM
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Originally Posted by analogmike View Post
I hate how abs works in a spin or backwards, very unsafe.
Which is why the push thru switch is nice...push the pedal harder and the ABS turns off
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Old 07-07-2010, 06:10 PM
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Originally Posted by 38D View Post
Which is why the push thru switch is nice...push the pedal harder and the ABS turns off
that thar is a gooden idea. Is this a Porsche device or aftermarket.
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Old 07-07-2010, 07:45 PM
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Originally Posted by kurt M View Post
that thar is a gooden idea. Is this a Porsche device or aftermarket.
Surely it is something that you could fabricate.

I had an ABS shut off button (push to kill) on my dash. Had the presence of mind to use it a couple of times.
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Old 07-07-2010, 07:50 PM
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I would DE/Race the car with the ABS disabled (pull the relay or fuse to see if you miss it), before making the decision to yank it out.

It is a crutch, but a nice one to have. I went the other way and installed ABS on a track car that did not come with the option. Would do it again w/o hesitation. On a 944, the ABS brain and pump are only 4-5 lbs tops.

Not sure what is done on recent cars, or what was used on 964s, but the 87 944 Turbo Cups came with an ABS shutoff/reset switch and also with a pressure override switch on the master cylinder. If brake pressure hit 180 bar, it shut off the ABS system for an intentional lockup situation (in a spin). This switch was never used on later Turbo Cup cars, so apparently the factory determined it unnecessary.
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Old 07-07-2010, 11:18 PM
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Sometimes you don't have a choice because the ABS just doesn't always work. My race class requires 23.5" slicks in the front and 25" in the rear. The 964 ABS did not like the size difference and did not work well. It took about 2 events to get comfortable to no power assist and no ABS, but since then it's been fine.
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Old 04-15-2013, 12:36 AM
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Can anyone verify that removal of the ABS and wiring on a 91 964 turbo will interfere with the speedo?
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Old 01-20-2015, 05:34 PM
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Originally Posted by 38D View Post
I raced 964s for a while, so I know the feeling you're talking about. However, you eventually do learn to work with this and you'll be faster with abs than without. If you are in the abs frequently, then the braking technique is flawed. There is an abs push thru switch that was used on the cups (mine has one). It allowed you to turn off the abs in panic situations by applying more pedal pressure.
Does anyone have information on how and where this "push through" switch on the ABS system was installed, and any idea if it's a part still available from the factory? Maybe a racing equipment specialist? I'm interested in doing this to an 89 944 S2 rather than a 964 but might possibly be able to adapt a "stock" part if one's available.

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