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Registered
Join Date: Jan 2005
Location: the bluest city in the bluest county in the bluest state by the bluest ocean...did I mention the blue skies???
Posts: 453
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Boxster brakes on a 911
Has this been done??? is there a thread on this already???
Looking for an alternative to using 944 turbo calipers on my 75 Targa with a 3.2.... Thanks in advance for any replies 
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Greg....PCA, 356 Registry, 912 Registry 1977 911S Targa with 3.2...1960 T-5 coupe 1968 912 coupe, that's 32 P-cars, so far... 1990 Chevy 4x4 2500 pickup (with 255K & still rockin') |
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09-25-2009, 07:59 PM
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Registered
Join Date: Jul 2000
Location: So. Calif.
Posts: 19,910
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It's been done with 24mm Carrera rotors. Do a search.
What's wrong with 944T brakes? Rotors are 28mm. Also in the archives. Sherwood |
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09-26-2009, 12:43 AM
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Join Date: Sep 2007
Location: Wheaton, IL (Chicago 'burbs)
Posts: 3,141
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What's your goal? If it's slightly lighter weight, the Boxster caliper is probably a good choice. But if it's track performance, not sure you'll get it with those. For a 911 on the track, Carrera brakes are pretty darn good, but need better cooling. I ran stock Carrera brakes- 24mm front rotors, 42mm rear calipers- for years (decades?) and with good track pads, high temp fluid and lots of cooling air I rarely had a problem. But I could still cook the brakes on hot days.
I looked into the Boxster idea but it did nothing to solve the heat problem, and actually probably made it worse. The bigger pad would just put more heat in the rotor and caliper, and the 24mm Carrera rotor would still be the limiting factor. So I went with much bigger brakes- 996TT all around. Bigger pads, thicker and larger diameter rotors etc. Now I can go 2 weekends (6 days) without having to flush my fluid. At one track event two friends who were carless were also driving my car so it often did back to back run sessions, and a pro driver took it out several times too. Never had a brake concern. As a bonus, I've gone 18 days on this set of Hawk HT10 pads, where with the same pad on the stock brakes I'd replace every 6 days or so because I'd get them so hot they'd start to fall apart.
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Ed '86 911 Coupe (endless 3.6 transplant finally done!) '14 Jeep Grand Cherokee 3.0 Turbodiesel (yes they make one) '97 BMW 528i (the sensible car, bought new) '12 Vintage/Millenium 23' v-nose enclosed trailer |
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09-26-2009, 03:57 AM
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Make My Day
Join Date: May 2003
Location: Northern NY
Posts: 1,305
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74 911S Targa ROW Building Designer/Business Owner |
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09-26-2009, 11:20 AM
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I did front and rears about 6 or 7 years ago. They are still on the 84 Carrera and I can report no problems to date. I also updated the master cylinder with a larger unit. I still have an extra set of custom brackets if you decide to go ahead. Glenn
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09-26-2009, 12:03 PM
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Registered
Join Date: Jan 2005
Location: the bluest city in the bluest county in the bluest state by the bluest ocean...did I mention the blue skies???
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Thanks everyone for the great response. I have no issue with the 944 T brakes....just thinking the Boxster ones are a bit more modern & available ???? Plus...how fun is it to tell your friends "I have water cooled Porsche parts on my 911..."
I will look into both & compare the $$$. I am not going to be a track star, Just love a bit of Yee Haaa on back mountain roads. Feel that the 3.2 is more motor then the alum. S calipers can safely handle.
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Greg....PCA, 356 Registry, 912 Registry 1977 911S Targa with 3.2...1960 T-5 coupe 1968 912 coupe, that's 32 P-cars, so far... 1990 Chevy 4x4 2500 pickup (with 255K & still rockin') |
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09-26-2009, 07:30 PM
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MBruns for President
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Where you gain is the rotors - while not as sexy looking as the calipers - it's the rotors that provide the heat sink.
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Current Whip: - 2003 996 Twin Turbo - 39K miles - Lapis Blue/Grey Past: 1974 IROC (3.6) , 1987 Cabriolet (3.4) , 1990 C2 Targa, 1989 S2 |
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09-26-2009, 07:35 PM
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1984 Porsche Carrera coupe
993
Gone to California
Turbo
