Calipers

[mmascari]

Can someone please help me identify what calipers these are on my 944 turbo? I want to replace the rotors. I measured the rotors and they are 304mm x 28mm but can’t find any Porsche model that had this size rotor

[mmascari]

Another angle

[mmascari]

My car is a 1986 but the original owner changed the front end to the later setup

[mmascari]

The calipers are mounted with adapters. I purchased a 304mm x 32mm Turbo S rotor but it seems too thick

[grendiers]

I have ‘Big Reds’ on the front of my ‘89 car. The dimension between the bottom brake line, and the top fluid nipple, is approximately 7.5”. This is measured from the body of the caliper. Brakes are from either a 93-94 911 turbo (red), or same years of 928 GTS (black). Not exactly sure of the years involved. Measure your caliper, and if it’s the same, I’ll forward part number for rotors.

[mmascari]

Thanks for the reply, but for some reason the rotor on my car is only 304mm x 28mm which seems small if the calipers are Big Blacks. I would assume the rotor would be bigger

[huskerick1]

I would assume these are the M030 calipers that came on the 88+ Turbo S - same as those on a similar year 928. The big blacks/reds are surely larger...

[huskerick1]

There is also a casting number hidden inside near the brake pad ends... hard to see, but it's there.