When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Yes, Bill's pics are of 996 TT rear brake ducts. 997 TT ducts are completely different. On my previous Porsche, I had both 996 and 997 TT ducts in the rear (just 997's on current car though). Note that 996 TT ducts are more expensive (around $200 back when I bought them). Both need to be modified to fit 987.
One issue with 996 TT ducts are that air flow won't really hit the rotor if you have stock discs. It will if you upgrade to larger rotors.
No idea on removing the backing plates. I'd be concerned about overheating adjacent suspension joints, though. Keep in mind that rotors get into 500 *F even with PSM off and ducts in place. And that's in the paddock after coming off the track (obviously higher while on the track). I throw wheel weights left and right because the wheels get so hot. BTW, front brakes get hotter than rear (at least for me). I've IR-gunned as high as 590s in front and 530s (IIRC) in rear.
No idea on removing the backing plates. I'd be concerned about overheating adjacent suspension joints, though. Keep in mind that rotors get into 500 *F even with PSM off and ducts in place. And that's in the paddock after coming off the track (obviously higher while on the track). I throw wheel weights left and right because the wheels get so hot. BTW, front brakes get hotter than rear (at least for me). I've IR-gunned as high as 590s in front and 530s (IIRC) in rear.
I left mine on after hearing about other SPC drivers having ABS sensors fail due to heat. As for rotor temperatures, I used temperature sensitive paint on mine before Road America. The front paint turned greenish which indicates a range of 1327-1470 F, the rears turned beige which indicates greater then 1471...
I don't know the actual temps as I have not yet ordered the fancy paint BUT I can tell you my calipers are a nice deep wine color after this past weekend.
I have a set of front brake ducts from Olsen Motorsports I would be willing to sell. They worked great on my car and solved the heat problems in the front brakes as others have noted. I have sold my car, so looking to sell them. I have all of the original hardware for install. These replace your front dust shields.
I have a set of front brake ducts from Olsen Motorsports I would be willing to sell. They worked great on my car and solved the heat problems in the front brakes as others have noted. I have sold my car, so looking to sell them. I have all of the original hardware for install. These replace your front dust shields.
Thought about making something like this myself. What car does it fit and how much are you asking?
Thought about making something like this myself. What car does it fit and how much are you asking?
This particular versio fits 987 Cayman S and Boxster S. I know Olsen Motorsports makes Solutions for other models. If you have interest in mine, PM me. I do not want to turn this into a car sale ad. Thanks.
This particular versio fits 987 Cayman S and Boxster S. I know Olsen Motorsports makes Solutions for other models. If you have interest in mine, PM me. I do not want to turn this into a car sale ad. Thanks.
Thanks for the reply but these probably won't fit my 991 S. I'll hang on to the Olsen Motorsport reference though.
Keep the backing plate, just trim the upper portion to allow more air to flow to it, while still protecting your ball joints. Instead, cut out the front wheel wells to allow full air flow, use mesh screen. Then use 997 GTS front brake ducts, along with a 997 GT3 upper air diverter attached to the inner fender well. This combination yields outstanding cooling, much better than a set of Olsen ducts, because it generates much more air to actually get to the rotors. Pics of my car, before I trimmed the upper dust shield.
09-26-2017, 08:40 PM
