The Porsche brake caliper 'conspiracy'
12-12-2013, 11:55 AM
#91
The front rotors are pretty darn big. Will there be enough play in the brake lines to allow the caliper to slide completely off of studs? It's already really tight when lifting the calipers off of the front rotors during a rotor swap. Studs will require more play in the brake lines.
I'm not saying it's ideal...at all, but it is what it is. Vast majority of owners will never get brake grim on their fingers...or even take it to the track.
12-12-2013, 11:56 AM
#92
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For me the fixed bridge caliper are a way bigger PITA than CL wheels!
I always put CUP car studs in to save the steel stretch bolts in the aluminum hub!! From stripping out.
A few guys replaced caliper due that and I would have liked it, but nothing wrong with the stock calipers so seemed an expensive upgrade to to for not much performance increase.
I ended up paying for pad changes because I did not feel like doing it anymore.
I always put CUP car studs in to save the steel stretch bolts in the aluminum hub!! From stripping out.
A few guys replaced caliper due that and I would have liked it, but nothing wrong with the stock calipers so seemed an expensive upgrade to to for not much performance increase.
I ended up paying for pad changes because I did not feel like doing it anymore.
12-12-2013, 12:49 PM
#93
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It's tight, but I didn't have much trouble changing out the PCCBs on my RS for steel, which required removing the caliper. I'm not saying it's ideal...at all, but it is what it is. Vast majority of owners will never get brake grim on their fingers...or even take it to the track.
12-12-2013, 01:24 PM
#95
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Rick Sine
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Race Technologies, LLC
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12-12-2013, 03:25 PM
#97
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Follow the link in my post. It is a direct link to Brembo's current race catalog. You will notice they offer calipers with a removable bridge, spring clip type design, and a non removable bridge. The non removable bridge is used on all their higher end motorsport calipers. Calipers with the bridge cost more to product than those without.
12-12-2013, 03:57 PM
#98
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Hi Seth - I couldn't make your link work, but found it here:
http://www.brembo.com/it/Auto/Racing...MBO_RACING.pdf
I think some of those fixed-bridge types have 8-piston calipers and two sets of pads (4-piston size) in each that can be replaced on either side of the bridge, without removing calipers.
There are certainly some nice race calipers with fixed bridge (and captive pads), but I continue to think the removable-bridge ones with spring clips for pad retention (rather than pins to drive through calipers and pads) are best suited to a street/track car.
Here's 8-piston with removable bridge (one of their most expensive race calipers):
http://www.brembo.com/it/Auto/Racing...MBO_RACING.pdf
I think some of those fixed-bridge types have 8-piston calipers and two sets of pads (4-piston size) in each that can be replaced on either side of the bridge, without removing calipers.
There are certainly some nice race calipers with fixed bridge (and captive pads), but I continue to think the removable-bridge ones with spring clips for pad retention (rather than pins to drive through calipers and pads) are best suited to a street/track car.
Here's 8-piston with removable bridge (one of their most expensive race calipers):
Last edited by GrantG; 04-23-2014 at 03:35 PM.
12-12-2013, 04:10 PM
#99
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deleted
Last edited by GrantG; 12-12-2013 at 04:51 PM.
12-12-2013, 04:30 PM
#100
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Might be nice if the GT3 (or maybe RS) came stock with a larger version of this:
Last edited by GrantG; 04-23-2014 at 03:35 PM.
12-12-2013, 04:55 PM
#101
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That won't be the case with the 991, different cars, different components... I wouldn't hold my breathe with regards to getting studs that work
12-12-2013, 05:19 PM
#102
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The exist today because the road cars share brake components with the cup car and these are a standard feature of the cup car that we can retrofit... I have them...
That won't be the case with the 991, different cars, different components... I wouldn't hold my breathe with regards to getting studs that work
That won't be the case with the 991, different cars, different components... I wouldn't hold my breathe with regards to getting studs that work
Last edited by GrantG; 12-12-2013 at 06:38 PM.
01-09-2014, 06:29 PM
#104
Two piece calipers with a bridge offer stiffness very close to that of monoblock calipers (potentially better stiffness with right fastener size/alloys). While I doubt Porsche is trying to generate service business, I expect they save a few euros on monoblocks. There is no performance reason to transition from quality two-piece calipers.