Re: Can 147 GTA Brake calipers fit 147 2.0TS
yes, i had a set of GTV V6 calipers that came off a 33 with fiat coupe (4x98x320mm discs) with a fancy bracket machined to fit.... a 33 hub....which wasn't much use for a TS!!
The problem with fitting the old calipers further out is then the lug offset - the bracket design would be next to impossible! It would need to be stepped, making it kind of weak... but the spacing is way out - the caliper would need to sit aobut 3/4" too far in, or out... meaning the spacing for the disc is massively out! So then you're not looking at using standard pattern discs, but a bell/rotor setup to offset the disc (it would need to be inwards or else you need monster wheel spacers!)... trust me i've spent a long time with an engineering copany trying to get them to fit (easily)!
Your best bet - take the calipers, ebay them, advertise them as a 33 upgrade or whatever, then buy some radial mounted ones, dead easy to get a bracket made up then, and you can use the GTA disc. That will save you much grief, trust me!