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Do your 322by32 fit 993tt brakes? I think GTS and 993tt use the same front rotors but I didn't see anything for 993 on the site. I would give them a shot.
Same disc size (322x32) but different offset. 993TT seems 6mm shallower than 928 GTS.
So it just needs a shallower hat for 993TT.
However our spindle in house indicates the offset difference between the two spindles is only 4.2mm, so we believe the caliper between 928GTS and 993 is also different in order to add up to a total of 6mm in difference if it's true and correct.
Same disc size (322x32) but different offset. 993TT seems 6mm shallower than 928 GTS.
So it just needs a shallower hat for 993TT.
However our spindle in house indicates the offset difference between the two spindles is only 4.2mm, so we believe the caliper between 928GTS and 993 is also different in order to add up to a total of 6mm in difference if it's true and correct.
thats a good question, are the big reds different on the 993 turbo, or not? might just be different spindles and their associated mounts. but your right about the hat differences... 993 is not the same as 928GTS, which IS the same as 965Turbo. (same 322mm diameter rotor though)
they call that C2Turbo and those are the better calipers too than S4 because they are radiused to be used with the stock 322mm rotors , but the hats are the same and so are the calipers the same as , funny enough , S4 calipers. (little brembos)
Last edited by mark kibort; 03-12-2016 at 11:51 PM.
Thats the ring, and the hat is available for this as well. i suppose there are different hats for all rotor rings, or are there some Hats that can mate with multiple sizes?
I just replaced the Racingbrakes.com rotor rings after almost 3 seasons of racing. i was truly amazed. they were much better than the first generation i had used , that still lasted a full season, but the new design is amazing. they had a HUGE impact of hub temperatures being lower, which translated to the rim also being much cooler. the pads lasted longer as well. Here is the near 3 season old rotor, that had some small cracks developing at the start of this season, but survived 2 race weekends at autoclub speedway, , laguna and sears point . i would have run them for a few more weekends, but the pads were getting thin and i wanted new stuff before the runnoffs. (plus, they are done now)
The Racing Brake website shows the discs with the hats, and the description says “plug and play”. I was under the impression the discs and hats were included for the price.
The Racing Brake website shows the discs with the hats, and the description says “plug and play”. I was under the impression the discs and hats were included for the price.
the 993 non turbo disc is the same as the S4 disk, but the hat will have a different offset.. the only offset we share with the 911s is the 964T. (which is a GTS rotor size equiv)
thats interesting.. the 991GTS has the same offset as the 928? and is this an upgrade for calipers that are moved out via an adapter or spacers? 340mm sounds like what the 991 would have, but the 928 S4 and GTS are 304mm and 322mm as you know .... if so, thats fantastic!
as a note, the 991 CS has 340mm front rotors and the 991GTS has 350mm front rotors and 330mm rears
03-12-2016, 07:47 PM
