No problem with your statements, however the weight of the 996 GT3 brake is roughly about the same as the 993 biturbo brake or the one you refer to as big reds. The big reds are widely used in all types of beetles and is accepted as a useful system. One of my friends has the 993 turbo brake fitted to an 57 oval. This setup was fitted in 1997 by Eduard Remmelle and works very nice. While we`re at it, Eduard build a street/race car not that long ago with AP 6 piston brakes and 350 mm discs and no one seemed to question the size of the brakes or the added unsprung weight then
Anyway,the weight of the 993 351 045.10 disc is 9.2 kg and the diameter is 322mm.
The weight of the 996 351 401 9H disc is 9.5 kg and the diameter is 350mm.
The weight gain is only 300 grams per disc and although the disc is bigger in diameter, a new production process kept the weight down.
The weight of the 993 351 425.10 4 piston turbo caliper is about the same as the 996 351 431 91 as the manufacturing process has changed too. 993 calipers are more solid and use aluminium pistons whereas the 996 6piston caliper is built to save weight for the size unlike for instance the solidly cast cayenne 4WD caliper.
The housing is shaped around the pistons which are made of synthetic material similar to teflon to save weight again.
Setting up a brake system like this is not an easy task and will take a bit of dedication.
I have access to brake pressure gauges VAG 1347 x4 (take actual brake pressure reading straight off the bleed nipples)to determine which wheel will lock up at which brake pressure, a rolling road and can refer to close friends working in the brake development department at ATE in Frankfurt.
The correct master cylinder and brake proportioning valves have yet to be determined.
Again, every brake upgrade will add unsprung weight, and the 996 GT3 bake is definately overkill in a beetle, but it will not add a lot more unsprung weight than a 993 turbo brake.
I always preferred this forum to others as the statements and knowledge shared was mostly top notch and guessed anwers were clearly identified.
Other peoples comments were discussed witout trying to ridicule them.
After all, we share the same hobby don`t we ?
