QUOTE(mepstein @ Jun 14 2021, 11:15 AM)
The stock 76 930/911 turbo ran S calipers front and M rear and weighed close to 3k.
I have this car, more like 2600 lbs, 205 fronts and 245 rears. I’m not that hard on brakes, but I can easily get them to fade with some spirited canyon driving. IMO it’s not enough brake for the 930, especially when you start adding more power and using current and larger rubber. I swapped to later 930 turbo brakes, it’s what that car should have had from the beginning.
My race 914 feels great 1984 lbs with 911 As on the fronts and vented Ms on the rear. As have the same pad as the S caliper, but they are heavier. But this combo feels excellent on the 914, I would want it even more on a street car. Race car has 205/50s (200 treadwear). The only drawback is the lost ebrake. Ideally I’d have pmbs rear 914-6 caliper with A or S calipers up front.
Finally the new 6 race car has 993 tt brakes, they are big, not sure how they compare to boxster brakes, but they have to be similar in pad size. Regardless, car is a pig at 2400lbs, runs 225s in the front and 245s in the rear, they stop on a dime, probably overkill, but they feel really nice on street and track.