Making functional RS brake ducts
#1
Drifting
Thread Starter
Making functional RS brake ducts
Anybody make their RS "oil cooler" ducts fully functional?
Doesn't see like it would be that hard to add some hoses, drill a hole thru the wheels well, a small wing to direct the air to the brakes.
Been pondering doing this for awhile. It's two hoses, two flangers (was thinking of using something from one of those cold air intake companies), and making a wind deflector to move the air to the brakes.
My car is also going to be sans a/c soon too, so it would be even easier.
Doesn't see like it would be that hard to add some hoses, drill a hole thru the wheels well, a small wing to direct the air to the brakes.
Been pondering doing this for awhile. It's two hoses, two flangers (was thinking of using something from one of those cold air intake companies), and making a wind deflector to move the air to the brakes.
My car is also going to be sans a/c soon too, so it would be even easier.
#4
Technical Guru
Rennlist Member
Rennlist Member
It would be interesting to see cooling deltas from the various manufacturers... The only one worth installing probably ducts directly to the inlet vanes on the back of the brake disc?
#5
RL Technical Advisor
That's exactly what Porsche did on the RSR's; ducted air to the eye of the rotor to force air through the vanes. Simply blowing air AT the rotors can turn them into Belleville washers.
#6
Instructor
TechArt used to have a kit . . . .
I made mine functional using their kit. Actually I didn't even use the front bumper inlets, just the duct hoses and all the remaining "hardware" which is really just hard polyethylene. Seems to work well. The main thing is that you're making more positive air pressure in the wheel well which serves to extract the heat. Takes a bit of finesse to get the ducts thru on the right oil cooler side and might be an even bigger challenge if you've got an AC cooler/condensor on the left side. (I don't!) Don't know for sure if TechArt still produces this kit but it would be worth exploring. Or maybe FVD has got their own version of the same kit?
#7
Three Wheelin'
Mine are functional. I'll try to get a pic of mine before I put it away for the winter. Ducts are aimed at the rotors. I believe we used the same line as you would for the heat exchangers but don't quote me on that just yet
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#9
Drifting
Thread Starter
Yeah, if you can take a look. Finding out what type of hose needed would be good info.
#10
Drifting
Thread Starter
Do you mean it is possible to warp your rotors with that setup?
#11
Rennlist Member
Here's a parts list at the very least. I have the Techart Setup, it's very similar to the FVD... http://www.fvd.de/us/en/Porsche-0/-1...Foglights.html
#12
Instructor
While it's clear the FVD kit is an imitation of the TechArt kit, it's not exactly the same. TechArt uses molded flexible "reducer joints" that allow easy slip-on connection of the duct hose to the bumper duct at one end and the fender exhaust flange at the other end. FVD is using a less elegant solution that involves adjustable clamps and a clear plastic section as a junction between the exhaust flange and the duct hose. While the FVD kit can certainly be made to work nonetheless my preference would be the TechArt kit if you can get it. Also, the plastic air diverter plates that go inside the fender wells have bosses with holes for screwing the plates onto the steel bodywork but I never used screws only duct tape and that's worked perfectly well for years.
#13
Race Car
#14
Race Car
yes but the question is does is there a big enough delta in cooling by piping to the centre of the disc or is creating the high pressure in the wheel arch enough? My cup car has no piping/vents and brakes solidly for 30min races; granted huge discs and pads.
#15
Technical Guru
Rennlist Member
Rennlist Member
And the next question should be... how much front end lift does the additional pressure in the wheel well introduce? We know that venting the wheel well dramatically reduces lift enough that downforce can be created on the front of a 911.