You could look at another option. Have a look at the Power Stop JBR1529XPR. It is the right mounting pattern and is 13.4". Hat height is 2.2". You would have to make up a lot of space to bring it back out to match the 1.7" Cobra rotor.
The two guys I mentioned in the first post who I got the instructions from I know called him out because I saw it. I saw that he changed his name on Facebook.
Just installed my setup last night. Huge difference in braking IMO. Brakes are much more responsive, feel is way better and they are far far more eager to lock up the tires/engage ABS. Plus they look killer!
Power stop Z26 pads
Stop tech lines
Eradispeed rotors refinished
Thanks!! Well now you can pick up a set cause you know they clear the Brembos'Looks fantastic! Also those are my dream wheels!
Did the Power stop Z26 pads need to be trimmed down as much as noted in post #1?
I’ve been looking into this upgrade but not willing to jump ship till I’ve got clear evidence that they’ll clear my 18x9.5 +25 Classics.
Thus far the only kit I believe to fit are the 00R’s but even then I’m not 100% sure.
@GodStang hell of a write up!!
I’ve been looking into this upgrade but not willing to jump ship till I’ve got clear evidence that they’ll clear my 18x9.5 +25 Classics.
Thus far the only kit I believe to fit are the 00R’s but even then I’m not 100% sure.
@GodStang hell of a write up!!
I’ve been looking into this upgrade but not willing to jump ship till I’ve got clear evidence that they’ll clear my 18x9.5 +25 Classics.
Thus far the only kit I believe to fit are the 00R’s but even then I’m not 100% sure.
@GodStang hell of a write up!!
I’ve been looking into this upgrade but not willing to jump ship till I’ve got clear evidence that they’ll clear my 18x9.5 +25 Classics.
Thus far the only kit I believe to fit are the 00R’s but even then I’m not 100% sure.
@GodStang hell of a write up!!
I played around with this over the weekend on a bench with some spare spindles and rotors. Not sure I'm going to continue much further with it.
I know guys are running these, but my criteria was no spindle mods, and no brake pad shaving.
The ATS uses a 12.6 rotor and the Caliper is designed for that radius. You can see here on the 13.1 cobra rotor the different radius
View attachment 1589406
The 13.4 rotor doesn't fit well. Since the radius of the Caliper is for a smaller rotor, the arc of the larger rotor causes it to come very close to hitting (if it didn't skresdy) the front and rear of the Caliper body. The result is you'd still need to shave some of the pad after machining the rotor to fit.
Here's the Caliper resting on the 13.4 rotor and you can see the pad still overhangs.
View attachment 1589409
The cobra 13.1 rotor does fit in the Caliper and allow an unmodified pad to fully contact the face, but you'd need to modify the spindle to located the Caliper down about 8mm towards the center of rotation. Not easy to do.
View attachment 1589408
Playing with CAD, the inserts on the Caliper can be removed and designed with a shift of 0.5mm to match the GM bolt spread (130mm on the SN95 and maybe 131mm on GM) and shift it about 0.5mm closer to hub. Not enough to bring the pad on the rotor face.
I know the Subaru guys do this mod too on 12.8 rotors and complain about pad overhang as well.
So I'm going to stop here, return my j55 rotor and put my $50 Caliper on a shelf as a paperweight for now. I know these can be made to fit, but I don't want to do some of the modifications required too. In 10 years or so when I'm 50 I want to be able to order an off-the-shelf pad or rotor and put it in without modification, or change to a different braje setup without having to replace my spindle