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Back again. Couple more updates. I got the driveshaft adapter back from my machine shop. and it fits like a glove between the BMW CV joint and the r200 input flange. I guess my measurements were pretty good and their machine work was top notch. I also went ahead and got the tires mounted onto my wheels and tossed them on for a brief test fit. Granted there's no sub-frame in the car to hold the wheel in place very much, but just hanging there, it's looking pretty good to get away with out any fender flares. In front sub-frame news, I think I have all the pieces I need to finally get this thing completed. I have the tube bent, the steering rack mounts plasma cut and the end brackets all laser cut. I used a new company for the laser cut parts this go around due to availability of my original source. OshCut is the name of the company I used this time and I was very happy with their whole process and at the end of the day their pricing was reasonable. It pays to have them cut multiples of what you need the first time, since it turned out that 2 sets of parts only cost about $15 more than a single set and the first set cost $80. Anyway, I just need a solid day to trim the tube, finish welding up the end brackets and the steering rack mounts and I should have a functional front subframe. Then to readdress the engine mounts. I'm not sure if i'll use the frame mounted ones I already designed or if there is a way to potentially integrate them into my new subframe. 1 step at a time...

Pad compound and rotor size have very little impact on overall bias. They can be used to tune in brake feel, but it's within a few percent and at the end of the day, don't effect clamping force. At the end of the day you need to start with the correct piston stagger, which I'd hope T3 can figure out. A prop valve certainly would be a good addition, I won't dispute that. I do wish generally that these companies would tell you what calipers they use. Saying "Wilwood 4 piston" is about as useful as saying "New calipers" since Wilwood has so many caliper piston sizes within the models. The tools and calculators exist for people to figure this all out, but the companies need to give us the information. Anetcodaly we all know the rears see less pressure due to the factory prop valve, residual valve, drum cylinders etc, but does anyone have actual numbers?

here's a shot of the holes in the back panel and a pic of the hatch area that shows you how open the rear is to the ground. The rear suspension packaging is open. So the idea is to flow air past the diff up over the fuel cell and out the holes.