Alright everyone, I've been hard at work on this kit for my project car, and I wanted to let you all see it to get some opinions. I designed the kit with the components I described before: 2006 WRX calipers, 2004 350Z rotors, large bearing A body spindles, with custom components to hold it all together. I was also able to complete FEA analysis on the new hub to optimize thicknesses and confirm that it is stronger than the stock spindle (so it should never fail before the spindle does).
Let me know what you guys think. I'll go ahead and say this about fitments too, the calipers will most likely not fit under rallye wheels since from what I've heard even 15" rallyes use 14" centers. The kit pushes the wheel out at least .4" on each side which is unavoidable due to caliper mounting restrictions. And, wheels with flat spokes (limited brake clearance) might also have fitment issues. A spacer could take car of that, but it also increse the stress in the spindle and pushes the wheel out further.
If you want a really detailed discription of the design process head on over to my build log
here. Theres a lot of good images and better detail on the finite element analysis.
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