rear brake cooling solution
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From: san francisco area
GlennMc: After I saw the circles on my GT2 (they were easy to see and you didn't really have to look carefully) after about six track days I got another three track days out of the rotors. After that the circles looked like someone had taken a chisel and dug material out of them and the rest of the rotor was showing areas where the ceramic material was flaking off.
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From: S.F Bay Area
parts & prices
from Sunset Imports:
997 575 531 90 air duct (L) 66.45 one only in US at a week away, more a month from Germany
997 575 532 90 air duct (R) 66.45 same as above
997 575 631 90 bracket (L) 14.90 same as above
997 575 632 90 bracket (R) 14.90 month from Germany
999 073 536 01 M6 bolts x4 1.83 each, but none anywhere, 1-12 months away for these if you can believe that.
997 575 531 90 air duct (L) 66.45 one only in US at a week away, more a month from Germany
997 575 532 90 air duct (R) 66.45 same as above
997 575 631 90 bracket (L) 14.90 same as above
997 575 632 90 bracket (R) 14.90 month from Germany
999 073 536 01 M6 bolts x4 1.83 each, but none anywhere, 1-12 months away for these if you can believe that.
Racer
Joined: Feb 2005
Posts: 260
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From: England
GlennMc: After I saw the circles on my GT2 (they were easy to see and you didn't really have to look carefully) after about six track days I got another three track days out of the rotors. After that the circles looked like someone had taken a chisel and dug material out of them and the rest of the rotor was showing areas where the ceramic material was flaking off.
Race Director
Joined: Oct 2004
Posts: 11,202
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From: Ottawa, Canada
- If somehow your stock 2007 rear ducks need replaced, if you order new ones you will get the updated part
- if you hit the brakes in a bumpy brake zone the ABS freaks out and you don't stop - I know for a fact that the 997 cupcar does not suffer this problem to the same extent - thus the motorsport ABS unit is clearlt better in this respect
- if you hit the brakes in a bumpy brake zone the ABS freaks out and you don't stop - I know for a fact that the 997 cupcar does not suffer this problem to the same extent - thus the motorsport ABS unit is clearlt better in this respect
Wordsmith
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Where's Bob when you need him? : )
Thanks for the post, Larry. Nice pick-up. And here I was thinking Titanic is all about boozy driving holidays on the continent with a rip around the ring (Nurburg, that is.)
Looks to me like just a nozel and duct to the inside of the rotor at the basket. Surely retrofits and since the new GT3 is the same as the current GT2 rear suspension, it should retro to the GT2 (or even be in a TSB for the $190K car ...)
As for TC or any electronic intervention versus work load, I experimented with this in California heat at Laguna. Even a lap with _entirely_ straight line braking and acceleration ( literally coasting through the turns 20-30 mph below usual apex speeds ... doing a horrible "point and squirt, park it in the turns" session, left the rears soaking in heat while the fronts were unfazed) and zero potential for any sort of TC intervention. I was also careful to avoid downshifts where the system might have invoked the engine or TC algo's so I just again coasted through the turns a gear high and no dramatic downshifts.
All that said, the heating could still be exacerbated by TC, but if TC were the root cause, Porsche would change TC.
Thanks for the post, Larry. Nice pick-up. And here I was thinking Titanic is all about boozy driving holidays on the continent with a rip around the ring (Nurburg, that is.)
Looks to me like just a nozel and duct to the inside of the rotor at the basket. Surely retrofits and since the new GT3 is the same as the current GT2 rear suspension, it should retro to the GT2 (or even be in a TSB for the $190K car ...)
As for TC or any electronic intervention versus work load, I experimented with this in California heat at Laguna. Even a lap with _entirely_ straight line braking and acceleration ( literally coasting through the turns 20-30 mph below usual apex speeds ... doing a horrible "point and squirt, park it in the turns" session, left the rears soaking in heat while the fronts were unfazed) and zero potential for any sort of TC intervention. I was also careful to avoid downshifts where the system might have invoked the engine or TC algo's so I just again coasted through the turns a gear high and no dramatic downshifts.
All that said, the heating could still be exacerbated by TC, but if TC were the root cause, Porsche would change TC.
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Racer
Joined: Aug 2007
Posts: 470
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From: Nordschleife
Just got word from Ric at Suncoast Porsche in FL that he will be able to provide a group buy on the ducts and control arm brackets. Suncoast is in the process of researching them for proper fitment compatibility on the gen. I, and will advise when this is completed. The parts will have to be ordered from Germany, so lead times may be over a month at this time. If you are interested, contact Ric at Suncoast:
Ric Knab
rknab@sunsetautogroup.com
http://e-partssales.com/Merchant2/me...T&Store_Code=P
No affiliation with them, just a satisfied customer!
Ric Knab
rknab@sunsetautogroup.com
http://e-partssales.com/Merchant2/me...T&Store_Code=P
No affiliation with them, just a satisfied customer!
Thread Starter
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From: S.F Bay Area
so it will take a month to get them unless you PDK them ...
You could try either carnewal or Parr in the UK if you want them faster
Thread Starter
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From: S.F Bay Area
there is a bracket that looks as though it may clip elsewhere ...
Thread Starter
Rennlist Member
Joined: Oct 2002
Posts: 26,155
Likes: 3,923
From: S.F Bay Area
Where's Bob when you need him? : )
Thanks for the post, Larry. Nice pick-up. And here I was thinking Titanic is all about boozy driving holidays on the continent with a rip around the ring (Nurburg, that is.)
Looks to me like just a nozel and duct to the inside of the rotor at the basket. Surely retrofits and since the new GT3 is the same as the current GT2 rear suspension, it should retro to the GT2 (or even be in a TSB for the $190K car ...)
.
Thanks for the post, Larry. Nice pick-up. And here I was thinking Titanic is all about boozy driving holidays on the continent with a rip around the ring (Nurburg, that is.)
Looks to me like just a nozel and duct to the inside of the rotor at the basket. Surely retrofits and since the new GT3 is the same as the current GT2 rear suspension, it should retro to the GT2 (or even be in a TSB for the $190K car ...)
.
retrofittable to the 997.1 as they are listed in therein ... and the control
arm that it clips onto is the same p/n on the .2 as it is on the .1 ...
All the parts are available in Germany, and orderable thru Porsche dealers
here ... with the exception of the M6 bolts ... go figure ...
Drifting
Joined: Mar 2006
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From: The Ville
Thread Starter
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Joined: Oct 2002
Posts: 26,155
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From: S.F Bay Area