 Caliper upgrades??, 3" 5 lug or Brad/Mueller Hubs |
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| fiid |
 Jul 9 2004, 05:14 PM
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#1
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Turbo Megasquirted Subaru Member  Group: Members Posts: 2,827 Joined: 7-April 03 From: San Francisco, CA Member No.: 530 Region Association: Northern California  |
So with plenty of cheap older 5 lug suspensions out there, and also Brad/Mueller's new hubs on the horizon, I am starting to wonder what brake upgrades are possible whilst retailing 3" caliper bolt spacing.
I have seen a few kits on the net that use a bolt-on adaptor and 944/964 calipers. Not sure which rotor they run. Has anyone used a setup like this? Is it safe? Good? Happy? Cheap? Do I need a new M/C (they are 4 pot). I have heard mention of 930 calipers too? What are the options? |
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| Mueller |
Jul 9 2004, 05:24 PM
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914 Freak! Group: Members Posts: 17,146 Joined: 4-January 03 From: Antioch, CA Member No.: 87 Region Association: None 
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QUOTE have seen a few kits on the net that use a bolt-on adaptor and 944/964 calipers. Not sure which rotor they run these are converted to 3.5" spacing (they are some oddball spacing of 3.75" or something like that), not sure if they have enough material to go down to 3"......I did read that TimT is having a set modified to change them to radial mount, with this modification, I would tend to think that with the correct adaptor, these could be bolted on to just about any car you could think of that is running disks. I'm pretty sure the thicker 24mm rotors from the '85 and later cars would be the correct units. (instead of 20mm for the '84 and older) 930 calipers are 3.5" spacing and very expensive and not worth it since you can buy brand new calipers that are better and cheaper (for your application) |
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| fiid |
Jul 9 2004, 07:00 PM
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#3
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Turbo Megasquirted Subaru Member Group: Members Posts: 2,827 Joined: 7-April 03 From: San Francisco, CA Member No.: 530 Region Association: Northern California |
http://www.vehiclecraft.com/Brakes/VCI911_2_964.htm
The radial mount adaptor doesn't look like rocket science..... |
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| Aaron Cox |
Jul 9 2004, 07:03 PM
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#4
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Professional Lawn Dart Group: Retired Admin Posts: 24,541 Joined: 1-February 03 From: OC Member No.: 219 Region Association: Southern California |
(IMG:style_emoticons/default/agree.gif) , make it for 3" boltspacing please (IMG:style_emoticons/default/biggrin.gif)
here Attached image(s) 
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| Jeroen |
Jul 9 2004, 07:12 PM
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#5
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914 Guru Group: Members Posts: 7,887 Joined: 24-December 02 From: The Netherlands Member No.: 3 Region Association: Europe |
QUOTE(fiid @ Jul 10 2004, 03:00 AM) http://www.vehiclecraft.com/Brakes/VCI911_2_964.htm The radial mount adaptor doesn't look like rocket science..... It's not the calipers or the adapters that will kill you... It's the special rotors you need (IMG:style_emoticons/default/wacko.gif) cheers, Jeroen |
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| fiid |
Jul 9 2004, 07:13 PM
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Turbo Megasquirted Subaru Member Group: Members Posts: 2,827 Joined: 7-April 03 From: San Francisco, CA Member No.: 530 Region Association: Northern California |
That looks like sufficient stopping power eh?
Mmmmm. Calipers. |
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| fiid |
Jul 9 2004, 07:16 PM
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#7
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Turbo Megasquirted Subaru Member Group: Members Posts: 2,827 Joined: 7-April 03 From: San Francisco, CA Member No.: 530 Region Association: Northern California |
Hmmm... I see what you mean. Not as simple as I originally thought.
What about BMW calipers?? Did they retain the same bolt spacing when they went to vented rotors? |
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| retrotech |
Jul 9 2004, 07:27 PM
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#8
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retrotech Group: Members Posts: 470 Joined: 2-November 03 From: Mosier, Oregon Member No.: 1,302 |
Has anyone used Boxster brakes?
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| Gary |
Jul 10 2004, 08:31 AM
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Senior Member Group: Members Posts: 744 Joined: 12-January 03 From: Mount Airy, MD Member No.: 134 Region Association: MidAtlantic Region
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Haven't heard from Rich Johnson in a while, but I know he had a Boxster brake upgrade. He's one of the early guys on -6 upgrades.
Pelican thread on 914club ad by Rich for brake upgrades I updated my front with parts from him before the boxster upgrade was available. He modified 911 struts to take the brembo 4-pot caliper from a 944T. Add carerra rotors and the little 914 stops nicely. Not leaving well enough alone, am going with carerra rear calipers too... You can see the strut in the first picture of my old thread: Gary's 914-6 conversion. Gotta go with 16" wheels or bigger with either conversion. Gary |
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| Jeroen |
Jul 10 2004, 09:16 AM
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#10
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914 Guru Group: Members Posts: 7,887 Joined: 24-December 02 From: The Netherlands Member No.: 3 Region Association: Europe |
Instead of the Boxster calipers, you can use the 964 or 944turbo front calipers (which you can find used for around $200 / $250)
The bolt spacing is off by something like 2mm (for 3.5" struts) which is easily taken care of Like the Boxster calipers, they work with the 24mm 3.2 Carrera rotors ('84 through '89) cheers, Jeroen |
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