disc brake options

[vwo60]

The rotors are the same diameter as standard, just vented, i have 16" fuch's but 15" wheels would work as the caliper is very low profile, even the wheel mounting face is above the outside caliper face, plenty of options at the wrecker's, my early beetle runs a set of mazda RX7 series 5 calipers on 20MM thick rotors, the larger brakes are not over kill but provide very good modulation and stopping power withuot fade

[Chris V]

That's pretty darn cool, does the kit also maintain a stock trackwidth, and any idea of an overall weight gain?

I was thinking more along the lines of this OEM Porsche 6-pot setup that features much larger diameter rotors also:

http://vdubengineering.com/products/bra ... j-spindle/

While I really do enjoy the braking balance of the combination of OEM VW front solid discs and the 944 N/A rear vented discs for everyday driving - there's something bothering aesthetically about the rear rotors being larger in diameter than those up front and I haven't seen an attractive alternative front setup yet. Around here we have a hard enough time getting correct pads/rotors for cars still in production

[vwo60]

I have a friend that runs the complete porsche set up on his ghia, great brakes, i have had heaps of problems with fade on any solid disc's that i have run, the problem i have is the comparison to my other cars brakes, i fabricated/machined these myself, they work so well, repeated stops from 140 KLm with no fade and excellent control and modulation, it has the same size disc's back and front but run's the 4 spot mazda caliper on the front and a large ford caliper on the back, standard master cylinder, the engineer approved the build and tested them without any changes required to the bias, on the rear of the ghia it has a set of cb performance rotohubs, average performance, cannot get the pads in Australia so i have purchased a set for CB and will have a softer material fitted to them to improve the rear braking, the track remains the same on a ball joint car but will increase slightly when fitted to a link pin car, on the ghia in already had a CB front disc kit so the track is the same, 10MM increase in the rotor thickness is accomodated in each direction so the center line of the rotor is the same as standard, the caliper is very light and i should imagine this would offset any gain in weight that the rotor has picked up. I Australia i should imaging the rear rotor being larger that the fronts they would not pass inspection and could posibly cause a bias problem, some photo's of the beetle brake's early in there development.,

[Chris V]

... I Australia i should imaging the rear rotor being larger that the fronts they would not pass inspection and could posibly cause a bias problem...

That's the exact reason I'm partial to the power from the stock 2-piston calipers - even on the smaller VW rotor they perform excellently, even when combined with the OEM rear brakes from a much heavier/powerful sports car (though, w/the engine on the other-end)...

The 924T/944 N/A brakes were chosen as they're simple to source, rebuild, and install - they're essentially a bolt-on that allows for a parking brake using the orginal Beetle cables by a simple adapter and spacer (VdubEng)- but you have to have the wheel well/wheel package for them to work as they do widen the track significantly. The two sets I've installed came with used rotors that are still in service, and seem to wear astonishingly slowly - I think one set are fitted with cheapo metallics.


http://img.photobucket.com/albums/v212/ ... 180001.jpg
http://img.photobucket.com/albums/v212/ ... 130029.jpg

[helowrench]

I want some more info on the sameasstockbutvented rotors you mentioned.....
got a part number by chance?

[vwo60]

i have no part number but they are available from Heritage vw in the UK.

[vwo60]

Just found the invoice, rotor part number is AC612708KS, this drilled and tapped for a porsche stud pattern.

[helowrench]

You are wonderful.
now my hunt is tonsee if I can get them in 5x112

[whiteboyspooky]

Can you put those on a cb perf spindle?

[vwo60]

Yes you can, that is what they are fitted to in the photo, you can order these in any stud pattern, just takes time.
http://www.csp-shop.de/cgi-bin/cshop2/f ... ort=0&all=
These are from CSP, the wonders of a google search.

[Bruce2]

(914 rear calipers are NOT self adjusting BTW, PITA)

Yes they are. Every time you pull up on the e-brake, they self adjust. I've installed pads, set the venting clearance, then ran them for years without touching them.