BC

I have a rotor hat set that I bought some years ago. I will be making some more for myself, and was wondering if anybody else would want some at about 100 or 200 dollars each hat. This allows you to use the 993TT rotors on your big brake kits. Saves a few pounds over the GTS rotors. PLus you can make your hats all different colors. I have designed them to be 6061 aluminum, possibly heat treated, but I need to get more info on it.

Here is the CADCAM of the part. Its not complete yet, but close.


And


Trying to make it as strong as posssible, though light. Open to ideas on material and info on whether heat treating aluminum would be good.

Any takers?

hinchcliffe

Not sure how thin the walls but heat treating usually makes things brittle, not good for a torsional load like that. Therefore I would stick with Steel and maybe put some fancy holes in it to lighten it up.

heinrich

Brendan with my Big Reds i have 993TT rotors. Not installed yet. Why would the stock hats not work?

hans14914

If you are making hats, why make them to fit the 993 rotor rings? Maybe something cheaply available, like wilwood rings.

BC

Can you tell me more about this or a link? I am making these to bolt up to the two piece 993TT rotors that I can use with my big red calipers. Devek used to (do they even exist anymore?) sell these with thier big brake kits, the hats alone were 600 dollars as I recall.

BC

The two piece 993TT rotors? I am not aware that the 993TT rotors will work as they are stock, for the 928 BB (Big Brakes). When you do big brakes, you do GTS rotors (probably crossdrilled), or 993TT rotors with separate custom hats to make the rotor work with the 928 hub.

At least that was the info I had last time I checked!

FlyingDog

maybe different caliper adapter kits allow different rotors...?

BC

OKay, no heat treating then. Most hats are aluminum that I am aware of. Steel wouldn't save much weight, though as you state, there could be some holes created to reduce weight.

BC

I think there are different rotors of different sizes that use the same center. Mark Anderson uses a 14inch alcon or something or other rotor with a custom hat and I think its a regular BB caliper.

Glen McCartney

Brendan, when I upgraded my MY85 to Big Reds, I bought a setup from a 993TT racer to use with the Bid Red adapters from the Big 3. The rotors are the 2 piece 993 rotors, bolted right on.

hans14914

Here is a link to the wilwood rotor catalog:

http://www.wilwood.com/Products/002-Rotors/index.asp

You may even be able to get a set of blank hats from them, and just have the correct porsche bolt patern machined in.

Hans

heinrich

Check the kits from Specialists ... pure, unadulterated 993TT rotors

BC

Interesting. Anyone know more about whether the 993TT two piece rotors work with no different hats?

BC

I must need to That site is as confusing as I have seen.

Benton

On another note, does anyone know where to get the nuts/bolts for the hat to bolt onto the rotor? I can't find them anywhere or anything aftermarket that would fit without interfering with the hat.