Haven't actually weighed the disks and calipers, but I reckon they probably weigh more than the difference between an alloy and a steel rim! How different is the sud hub carrier and hub arrangement to the 33 tho? is there any significant difference in weight there?
Just spotted this on ebay:
My 33 has sprint outboard vented disks and calipers, which were a big improvement over the solid disk and smaller caliper. Maybe this ebay item would be less prone to fade after heavy use? Is the fade caused by heat build up in the disk alone, or is that what higher spec brake fluid is all about too?
I fitted the vented disks after the original setup caught fire! The chap who helped me fit shorter springs mumbled something bout modifying the brakes asap, but i had no idea what he was on about until one day after many miles of twisty welsh roads, i suddenly had great trouble getting the car to slow on a long downhill slip road... ended up standing-up on the brake pedal with both hands pulling up on the steering wheel praying i'd stop before meeting the A road... i kid you not, when the car finally stopped (about 6 inches short of the junction), two big puffs of smoke came out from under the wheel arches
My friend and me, ahem, 'let go some water' on the front wheels to put the flames out, and the brakes thankfully started working again after the sizzling died down. Not sure my friend has ever forgiven me tho
If i were to fit inboards, i would certainly be looking to channel air from the front of the car over the callipers. Figured i would probably be able to get more cool air to the inboard location than under the wheel arches, but maybe not?
I had actually forgotten about the handbrake operating at the front on a sud, but was hoping to find alloy calipers of some kind that would fit anyway. Would just have to find some with handbrake levers, cos i aint strictly racing and the MOT man likes to see a good handbrake!
Visited a guy called Ian Stewart some years ago, who had a yard in bristol. He pretty much only broke 33s. Saw an 87 33 Ti there once that had bendix alloy 2 pots that bolted straight onto the 33 hub without a spacer/adaptor. There must be lots of calipers that use the same mounting positions, but, as Lauren pointed out, many things can be made to fit with a suitable adapter plate