[EDFHOBBIES]

Originally Posted by Trochoidal

You’re welcome. My 6th gen friend and I tossed around the “big brake kit” as a possible next upgrade. We are both wanting to do tracks days next year. What we couldn’t find was anything mentioned about the rear brakes getting upgraded. All information was about the front. So the links were what we used to get information.

I got my wife a 16ss early car like number 20 something I had a twin turbo 5th gen at the time.. we did a shared track day by the 3rd session my turn lol... the brakes got mushy in one of the worst corners. I limped in let it cool and we drove home not taking full advantage of the track day. The next day I ordered the big brake kit and motul it was perfect after that no problems I then come to find out that the zl1 brakes are bigger when I bought my zl1 and sitting in the garage next to each other. I screwed up I wish I would of gotten her zl1 brakes but they weren't out yet.

Probably do pads on both cars and flush w motul again.

[arpad_m]

Originally Posted by Alpha1BC

As mentioned, the ZL1 rears are bigger than the SS rears. Hopefully this helps clarify a little, but comparing the 3 packages in this thread there is:

SS: 4 piston front and rear. Smallest rotor/calipers you'll get without downgrading to floating calipers.
13.6" front rotor diameter
13.3" rear rotor diameter

SS 1LE and GM big brake kit: 6 piston front and 4 piston rear.
14.6" front rotor diameter
13.3" rear rotor diameter. (Common rotor/caliper with the SS trim)

ZL1 and ZL1/1LE: 6 piston front and 4 piston rear but everything upsized vs. SS 1LE.
15.35" front rotor diameter
14.4" rear rotor diameter

And while some of the SS or SS 1LE pads may technically fit in the ZL1 or ZL1 1LE calipers as I've seen posted elsewhere on the forum, the swept area won't be correct for the rotor and will result in worse brake performance.

Originally Posted by EDFHOBBIES

Okay thanks for the numbers

Let me echo these figures with the full specs (the highighted J6H RPO is the ZL1 set): https://www.camaro6.com/forums/showt...7#post11103007

[EDFHOBBIES]

So the part number for the rear pads of an SS are the same as an SS 1le? And only the zl1/Zl1 1le are bigger rears.

[cdb95z28]

Motul isn't cutting it. Use SRF or Brembo HTC64T for the road course.

[Alpha1BC]

Originally Posted by EDFHOBBIES

So the part number for the rear pads of an SS are the same as an SS 1le? And only the zl1/Zl1 1le are bigger rears.

Correct