Hello Board,
I would like to share an Idea that I have been thinking since I saw an Audi with Turbo Porsche Cayenne 6 piston calipers with 355mm rotors. I have access to these calipers for a great price and I'm looking for rotors. I would like to have the 4 piston rears also. And for the safety nut I will use a separate parking brake calipers. I want to do 356mm rotors in the front and 330mm rotors in the rear. Am I the only one who has these dirty thoughts?

*Yes I know that Racing Brake Company, Brembo, and Stoptech are the best kits you can buy. For me its not about buying off the shelf, it more about custom fabrication.

 

Of course not

If you have access to fabrication equipment, have the time and expertise to develop that idea; GO FOR IT.
Post lot's of pictures if you do it.

 

356mm rotors in the front would look INSANE. I say definitely go for it, I know there are several members on here that have adapted porsche calipers to there FD. I would definitely be interested in a kit or some kind of how-to.

Just remember that you are going to need atleast 18"wheels with a disk that is geared for big brakes.

 

lol why show off when you havent even done it yet
j/k
yeah of course its possible.
easy peasy, machining changes/brackets to get brakes fit, adjust f/r balance to suit your chassis setup and youre done.
lol you might need 19" wheels though right?
if so I think its totally stupid but hey go for it, tons of people will go bonkers over it.

 

Those or the new Z06 brakes would be nniiiicccccceeeeeeeeee

 

I can't wait to see these!!

 

I am using cayenne six pot brake with 355 drilled rotors for about a year. they braking power is awesome.you should ofcourse check the front wheel space in order to fit the the calipers.The six pot hace huge width,I have a Weds Cerberus 9" front wheel ,i can remember the offset, and the gap betweeh the caliper and the center of the wheel is 1,1mm!!!so beware of this.If you want to upgrade the rear calipers, as myself planning you should buy mechanical handbrake calipers.The only available companies that have them is Brembo,cost about a 1000$, wilwood 230-450$ but not very good calipers and hispec 230$-600$ depends on pots. I am painting right now a pair of 4pot big rear brembo calipers that used to be on as Aston Martin DB9. The calipers are absolutely fantastic.If you need any information of the whole project just sent me a pm to sent you some pictures of the front disks and brakes and of the rear calipers.

 

That might be a bit too much brake, seeing as how they are coming of a 4k lb SUV onto a 2700 lb car... and the piston sizes must be huge... meaning your pedal travel will be longer.

 

No no changes at all to the pedal believe it or not.the brake pump is stock.The brake feeling is awesome.the pistons are really huge. Nothing like the usual six pot calipers that the 997 ot other porsche car have. I am going to post some pictures on monday as my car is in the paintshop.

 

Grab the separate handbrake caliper off the rear end of the DB9 if it's available too....nice little unit! Can't imagine anyone wanting an upgrade of the standard package, or was the car totalled in a crash?

 

Post details/pics on that setup.

I find it hard to believe that Porsche 6-piston calipers designed for a 4,000 lb.+ vehicle don't require any more fluid displacement than 4-piston Mazda calipers designed for a 2700 lb. vehicle.

 

me too...

 

would a 929 master cylinder be enough fluid for it?

 

According to the people that sell brakes, 1.1mm is not enough clearance.

The wheel deflection under hard high speed braking could cause the wheel to contact the caliper.

I was told that 4 or 5mm was the minimum.

 

Believe ot or not i am not using other pump.Just the oem.The available space between wheel and calipers is exactly what i wrote.You cannot pass 3 A4pages between them.if the adapter that u are using is so solid u did not have any problem on hard braking.If u buy adapter from the basket maybe u have!!I did not even change my brake lines to use the calipers,just the connectors.I am using also the same cayenne brake to another project car that i have with the same result.Is a Suzuki Vitara with 609bhp escort coss. engine.I am not using the same disk although.

 

 

That my ride --WITH CAYENNE CALIPERS-- for those that cannot believe it

 

so how exactly did you do this conversion? what parts did you buy and what did you fabricate/alter ?

 

its just the brackets guys !

You need to see the offset of the rotor aswell first though

 

I just bought the disks and the calipers. My mechanic just fabricate the brackets form aero-aluminium,very light and very durable used in aerospace industry, and we open new holes in the disk to match
the oem holes.It was very easy installation believe me.You must have the right wheels/offset although cause that calipers are really huge.I did not change pump or brake lines.

 

I must say that I knew this was possible to do since if the VW guys can do it. It should be a no problem for RX7 a guys to figure out. I would like to know if you can snap some photos of the brackets. I would also like to know what year Porshce Cayenne Brakes, turbo or non-turbo, ect. You have no idea how grateful I am to you for sharing. People like you make being a member of this form awesome. Can you give us a lot more photos or send me a pm.

 

some serious braking power, always a good thing.

 

I will try to send u some photos of the brackets as soon as i can.It is not very easy for me as my paintshop is far away from my house.I will do it for sure in a while cause i am goint to paint the calipers.The calipers is from the Cayenne Turbo,original red, but as i can remember itsis the same as the aspirated one.The same calipers are used also in the VW's Touareg.

 

Thanks. What year and model are the rotors from

 

I am assuming you had to fabricate a new hat as well as a bracket for the calipers? I run the Porsche 993 "Big Reds" Front Brakes and it requires a bracket and a different hat due to the depth of the hat being different on the FD.