Hey everyone, I am upgrading to XJR100 brembos and the calipers I got came with some used two piece rotors. I cant seem to identify the maker as there are no brand names on it. The previous owner cant seem to remember either. I ask because one has a chip in the rotor and I would prefer to replace the rotor. i can get more pictures if needed.

 

Looks like a custom.
As I remember the XJR has to be 355mm diameter. You could find any 2 piece rotors in that size.

 

https://alconkits.com/products/maint...on-brake-discs

What I use.

 

So I guess I'm looking for 355mmx32mm rotors with the correct amount of fasteners? I am new to two-piece brakes so I don't know if there are standard bolt patterns for rotors and if its a simple as having 355mmx32mx10 bolts

 

double post ignore this one.

 

I'm all ears for what 2 piece rotors will work. I want them on my xjr 100 just for the looks.

 

I was thinking the same thing ...

 

I have been asking around to Jaguar experts and haven't gotten an answer on where the hats came from. I am beginning to believe that they may be custom as the person I bought this off of seemed to possibly be involved with NASCAR as he was also selling old NASCAR brakes. If there is enough interest, I could try to blueprint these hats at some point, or if there is someone local to the San Diego area that does this type of stuff for a living could blueprint them so at least if people really want them, the design can be sent to a good machine shop to be made. I'll continue asking around, but in the meantime it seems the rotor itself is nothing too special and any Brembo,ap racing, or Alcon 355x32x10bolts rotors can be used. We just need to find who made the hats

 

Yup, I agree. I believe Mina Gallery and Arden sold 2 piece rotors for these x308's. But that was quite some time ago.

 

It's Disc, Bell and hats, the hats are the fasteners that enable the disc to 'float'. Set up will need a locking wire tool, all hats should be drilled to wire lock them in place once torqued.

The Bell can be 3D scanned by any good machine shop, they get a set of datum points from the bell and from there an engineering CAD drawing enables production on CNC.

 

Thanks, yea, I wasn't too clear on what the exact nomenclature was. As far as I can see, there is no safety wire on these. I know what you're talking about, as I have used it before for aircraft stuff, but it seems these don't have any provisions for it.

 

Alright, last update unless I find who made the bells. I have found that the discs that came with the brakes were likely Brembo or maybe even a clone of Brembo discs. I have fitted a new set of Brembo 355x32 rotors. As a set that includes both discs and all-new hardware, it will cost $1210 USD. Obviously, it's very expensive, but I love the idea of having something so overkill and silly on a street car, let alone a large saloon car. It also doesn't hurt that each rotor weighs roughly 20 lbs as opposed to the 40-50 lbs that the one-piece rotors I had bought weigh. That is a considerable weight saving in unsprung mass, which is noticeable in the car's initial turn-in. It feels lighter on its feet, so to speak, in the steering department. Anyway, here are some pictures.

 

Those look AWESOME! If the cost wasn't so high, and the source of the hats was known, I'd pick up a set for my XJR 100. And I would probably do the back too, so they all match