993 GT2 Evo calipers
#17
The GT2 Evo caliper is much wider and longer versus the 993 turbo big red to accommodate twice the thickness of a big red pad and to accommodate a 380mm rotor.
#18
Rennlist Member
I would be interested in better pictures, piston sizes and part numbers if anyone knows for sure.
I believe this is only a 250mm rotor which is all that can fit under am 18" wheel.
This is the best picture I have of the front of a factory EVO albeit modified and the calipers and rotors appear to be similar to the RSR.
#19
The factory 993RSR will come with the 993TT big red unless the 380mm is optioned. I am getting a set refurbished shortly so I will post up pics when I can. The only part number that I have for the calipers is 993.351.428.82 and obviously it's a race part that needs to be ordered from Porsche Motorsport.
#20
Rennlist Member
The factory 993RSR will come with the 993TT big red unless the 380mm is optioned. I am getting a set refurbished shortly so I will post up pics when I can. The only part number that I have for the calipers is 993.351.428.82 and obviously it's a race part that needs to be ordered from Porsche Motorsport.
Talat any info you have would be appreciated. Especially measurements and piston sizes. I am wondering if it is a different casting or just a machining change.
The reason I question the 380 is my Gt4 has 380 fronts with a low profile caliper that has a much smaller casting height than the Big red type and no way is any 18" fitting over these.
#21
993 RSR sprint configuration were fitted with 350mm front rotors with big reds in a 18"BBS.E28 or E88. The 993 RSR and GT2 EVO endurance configuration came with a 380mm front rotor with a much wider caliper for more pad thickness since its for endurance and fitted with an 18" BBS E28 or E88. Both rotor sizes were floaters.
Also 996/997 RSR with 380mm rotors and mono block callipers like your GT4 runs 18" BBS wheels.
Also 996/997 RSR with 380mm rotors and mono block callipers like your GT4 runs 18" BBS wheels.
Last edited by C4Spolar; 01-08-2024 at 03:03 PM.