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Next step up from 'S' alloy calipers?
Somebody here must've done this.
What calipers bolt on to 3.5" ears and work with non power-assist master cylinders and stock '73 rotors? I'm looking for more pad area -- mostly in the front. Thanks!
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techweenie | techweenie.com Marketing Consultant (expensive!) 1969 coupe hot rod 2016 Tesla Model S dd/parts fetcher |
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10-24-2003, 09:17 PM
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Boxster calipers work great, but you need Carrera 3.2 rotors, and a pair of adapters.
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10-24-2003, 09:21 PM
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drag racing the short bus
Join Date: May 2002
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C'mon Jeremy - sell it, baby!
 Here you go techweenie: these guys'll stop you flat in your tracks... http://www.tremotorsports.com/Brakes.htm
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The Terror of Tiny Town |
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10-24-2003, 09:37 PM
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Yeah, I know about Boxster brakes. Heck, I even have a Boxster.
But I'm only stopping a 2300-lb. car with a 3.0. Not looking for overkill...
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techweenie | techweenie.com Marketing Consultant (expensive!) 1969 coupe hot rod 2016 Tesla Model S dd/parts fetcher |
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10-24-2003, 10:13 PM
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914 guys use old Volvo calipers, they are 3.0 inch spacing which work with older struts, but the Volvos are 4 piston. BMW 320i I believe, as well have 4 pistons. But with 3.5 inch spacing, Boxster is the way to go. You can do 3.2 Carrera but it only gives you a thicker rotor. There is no such thing as overkill, so go with Wilwood.
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10-24-2003, 10:28 PM
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drag racing the short bus
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I'm stopping a 2300-pound car with a 3.0 as well. I've stayed stock. Stops fine from upper double digits on Stunt Cyn., sooooo...why change?
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10-24-2003, 10:29 PM
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But David, we were going uphill on Stunt??
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10-24-2003, 10:32 PM
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drag racing the short bus
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Oh. That explains it...
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The Terror of Tiny Town |
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10-24-2003, 10:40 PM
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You are in a grey area where the oem brakes are marginal for track use. First cool them w/ efficient ducts, second use track oriented pads and fluid.
The issue isn't a pad area one it is a rotor one. have you read this page? It outlines the available upgrade steps. A cheap upgrade for cars in the grey areas that gives you 90% of the bang of the Boxster fronts for way less $$, is to just swap over a set of Carrera fronts w/ no other changes required.
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Bill Verburg '76 Carrera 3.6RS(nee C3/hotrod), '95 993RS/CS(clone) | Pelican Home |Rennlist Wheels |Rennlist Brakes | |
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10-25-2003, 05:42 AM
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Quote:
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10-26-2003, 05:54 AM
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PRO Motorsports
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I'll agree with the above statements. The alloy S calipers also flex way too much. The Carrera caliper is heavier, but much stiffer, and the Carrera rotors have a much larger heat-sink capacity.
We remove the brake shields, and weld on tabs to the front control arm to install 964 air deflectors. They work great, and are indestructable, unlike those goofy scoops and hose kits.
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'69 911E coupe' RSR clone-in-progress (retired 911-Spec racer) '72 911T Targa MFI 2.4E spec(Formerly "Scruffy") 2004 GT3 |
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10-26-2003, 08:47 AM
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Sinister Dove
Gemini Boomerang
Porsche 996 Turbo Convertible
996 Turbo
1976 Porsche Carrera 3.0
1995 Porsche 993 Carrera Coupe
