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macBdog

So after nearly hitting some drunk guy wandering about on the road at 4am, I decided to spend some money and effort on my braking system. The plan was also to increase performance when hitting the track. Heres how it panned out. First things was to pull off the calipers in order to rebuild them and take the lines to the hose place which makes up the steel braided ones:

The brake lines in the rear are little tiny things that fit up near the torsion bar. Hard line then runs to the rear calipers so its a little different from the setup at the front. Next the calipers were stripped and pistons pulled out of the cylinders. Here you can see the condition of the old seals and bores and also the fluid that came out of them. Yuck!

Caliper frames were wire brushed and painted red. The special red paint attracts positive ions which are transfered to the rotors and decrease rotational friction so you get an extra 20hp on the dyno.

A before and after shot of the cylinders and pistons.

New Zimmerman rotors came back from the machinists who did the slotting at this point and were installed. Home made tool from a 35mm socket welded to a big heavy piece of scrap steel was used to remove the castelated axle nuts. 5 hits with the hammer and off they came.

Calipers going back together with new seal kits and red rubber grease to keep them moving. All bearings were re packed with fresh clay based high temp grease.

Rears were installed first, then the fronts.

Overall the result is very positive. Pedal feel has increased substantially, there is no dead point in the travel of the pedal, nor is there a point where the brakes go from "just touching" to "locking up". Its a very smooth, linear feeling. Still gettings used to it. Managed to get it all done in time for my turbo oil seals to give up the ghost on the second lap of the aforementioned track day! Heres the resulting pic of Crunchie57 and Khal doing the "oh dear, glad that wasnt me" look

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1979 931 with a 350 chev
1973 911E with EFI

J1NX3D · Joined: 06 Feb 2003 Posts: 1333 Location: New Zealand

wow, great work! where did u source the rotors. this job is on my to do list *page bookmarked!*
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'86 944

Vince Ponz · Joined: 02 Nov 2002 Posts: 3581 Location: Florida

Beauutiiifuuul
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"Never let them see you sweat"
77.5 924 modified track car
79 931 Euro stock
88 924S SE
87 911 Targa stock

Modoc · Posted: Mon May 30, 2005 1:22 am Post subject:

mind if I ask what the price all said and done was on this?

Llamaguy · Joined: 02 Jul 2003 Posts: 711 Location: Indiana

macBdog · Posted: Mon May 30, 2005 8:50 am Post subject:

Khal · Posted: Mon May 30, 2005 8:56 am Post subject:

Looks even more impressive in the metal. Those rotors really fill up the wheels

Shame about the turbo seal going. Man, did it look expensive

Big black smoke, some flames!
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'80 924 Turbo

Paul · Posted: Mon May 30, 2005 1:05 pm Post subject:

Nice work!

Sorry about the turbo!

Joes924Racer · Posted: Mon May 30, 2005 1:53 pm Post subject:

Good jobman nice upgrade & well documented.
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1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

macBdog · Posted: Mon May 30, 2005 11:17 pm Post subject:

Warwick · Joined: 01 Oct 2003 Posts: 53 Location: Norway

What rim with and offset do you use?
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-78 924 NA
7x17 rims et 35 with 9 mm spacer front 34 mm rear.
Working on 5-bolt swap and supercharger kit.

Joes924Racer · Posted: Wed Jun 01, 2005 2:26 am Post subject:

Funny how calipers clean up black..Hey did you think of
painting them any other color..
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1979 porsche 924 Na
1980 porsche Turbo 931GT Replica
Have u ever driven a turbo.

Codyboy · Joined: 27 Apr 2005 Posts: 74 Location: Edmonton Alberta

Nice job man. It looks very good.
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Go hard or go home

macBdog · Posted: Mon Jun 06, 2005 9:16 am Post subject:

Codyboy · Joined: 27 Apr 2005 Posts: 74 Location: Edmonton Alberta

I would love to do that to my 924 but i never put a calapher togeter in my life

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Go hard or go home