Hi FieRo,

how is your project? Did you find a solution?

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Jürgen Martin
white GT 87
Germany

quote Originally posted by Fie Ro: Thanks for the additional info. I measured the center bore of a fiero disc with a simple ruler, its about 57mm if I'm right. scrolled through all 171 pages of the pdf Steven posted, looking for a matching center bore.. -Fiero 57mm- mazda 55mm but 4bolt Alfa Romeo / Fiat 59mm Toyota Avensis 55mm elise is 56.6mm but is only 4 bolt pontiac vibe 55mm 5 bolt scion tc 55mm 5 bolt subaru 58mm 5 bolt/100mm ....! Subaru is most close, how bad is the possible difference of 1mm ? ( 0.5mm all around)

.5mm all around with the WRX rotor is so close to a perfect fit - it's just enough clearance that the rotor neatly snuggles onto the hub. I'll get pictures when I clear out the shed.

Have you gotten any further with your project so far?

Well I havent progressed much but I have some encouraging info.
I had a few subaru rotors lend by member 'my pride', I had my hubs turned to 130mm diameter but the rotors just didnt fit, now when we discussed it another idea came up : instead of centering on the centering ring on the hub (that has a small margin) the idea was to center the rotor on the outside of the hub. mypride did this by shaving just a little from the inside of the rotor and now has a functioning subaru rotor / subaru caliper setup ! he said the brakes are awsome, you may want to drop him a pm if you want to know more. Good luck !