Question about PP brake caliper parts

[Dieselcircuit]

I just got my R1 rotors in yesterday for my 2015 SHO, going to order some powerstop z37 top cop pads tomorrow.

I would like to upgrade my calipers to the PP pistons and seals while I have everything apart, I imagine the seals shouldn't be an issue but I just wanted to see if anyone knows if the PP pistons will fit in a non-pp caliper without any issues?

I assume that they the are the same castings and the only difference is the vent holes, but I wanted to at least check before I order everything. $35 a wheel for pistons and seals is better then $100 for a whole new caliper.

 

[krewat]

Be careful, I read somewhere way back that the PP master cylinder was a different diameter piston, so that it had a different hydraulic displacement. I don't know if they also altered the PP calipers for a larger (or smaller) piston.

 

[FiveLeeter918]

on 2013-2019 SHOs there is no difference in the caliper or rotor, only the pad material. SOME PPs came with vented pistons, but there was no performance difference.

 

[Dieselcircuit]

Thanks guys,

Sounds like it might be a waste of money/time.

 

[SHOdded]

I don't think vented pistons are even offered any more, probably due to costcutting reasons. The seals do not tend to fail, PP or not.

 

[mrhighcaliber]

I just got my R1 rotors in yesterday for my 2015 SHO, going to order some powerstop z37 top cop pads tomorrow.

I would like to upgrade my calipers to the PP pistons and seals while I have everything apart, I imagine the seals shouldn't be an issue but I just wanted to see if anyone knows if the PP pistons will fit in a non-pp caliper without any issues?

I assume that they the are the same castings and the only difference is the vent holes, but I wanted to at least check before I order everything. $35 a wheel for pistons and seals is better then $100 for a whole new caliper.

Yes. They're the same sizes. The seals are silicon for PP. I have them on my 2010 (converted to 2013+ PP sized calipers and rotors). If you autocross or perform hard frequent high-speed stops in mexico, they're the way to go. If you're not going to frequently cook them for minutes at a time, the stocks do just fine.

Sent from my PH-1 using Tapatalk

 

[SM105K]

Also the hat on some PP rotors were vented from the factory.