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Deleted ABS; AST and overlfow tank in one in it's place.

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Old Dec 25, 2013 | 02:10 AM
  #1  
Jacobs_RX7's Avatar
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Deleted ABS; AST and overlfow tank in one in it's place.

I deleted my ABS and found that spot to be a good place for a coolant pressure tank. I built it out of 3/16" 6061 and copied the outlet size that Mazda used for the AST (small .083" hole limiting flow). I used weld on 6AN fittings with push on fittings and a weld on pressure cap. Seems to work well and really simplified the whole system.

The filler neck is an S7 (no bolt on cap mount) I plugged the forward nipple and utilized the 3/8" NPT plug for a 6AN 90.

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Old Dec 26, 2013 | 08:42 PM
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Nice job! can you build me one too?
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Old Dec 27, 2013 | 12:06 AM
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Very good use of space, well done. I'm still trying to figure out a way to use the stock ABS to my advantage however if I can't build a map that does what I want I'm totally stealing your idea.
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Old Dec 27, 2013 | 01:03 AM
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Very clean. Very nice. But I always question why people are removing the ABS? Are they able to outbrake (threshold braking) the ABS system?
Surely tire lockup is not an improvement?
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Old Dec 27, 2013 | 02:15 AM
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Haha, thanks- steal away I was surprised not to see a similar idea done. Most German cars run a pressure tank similar to this that's where I got the idea from.

There are lots of loooong threads debating ABS removal, I'm not here to debate that-

For me the ABS pump was leaking all over, I've had cars in the past without ABS and much prefered the feel. I've also removed the a/s and p/s and am building somewhat of a simplified car for nice weather/track driving only. I mounted a odyssey PC925 in place of the a/c and p/s too.

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