Brake Pads to Girodisc CCB replacements

[CarbonDan]

What pads fit our 2016-17 ACR-E OEM CCB calipers, for use with Girodisc iron conversion?
I've been running Raybestos ST43 and greatly enjoy them, but they've been backordered and I'm rapidly depleting mine.
Need to get another set of pads on hand as spares.
Any comparable Ferodo compound? Track use only, no concern for wear/noise/dust.
Want a high and FLAT mu.

[JonB ~ PartsRack]

What pads fit our 2016-17 ACR-E OEM CCB calipers, for use with Girodisc iron conversion?
I've been running Raybestos ST43 and greatly enjoy them, but they've been backordered and I'm rapidly depleting mine. Need to get another set of pads on hand as spares.

Did I piss you off somehow !? VOA sponsor here: PartsRack !

Can ship ST43 Steelies today, under $300/set Fronts....$249 Rears. + sh

Plz email me JonB@PartsRack.com [Thanks, I think !]

[CarbonDan]

Haha perfect! Email incoming momentarily. Needed to order some other stuff from you too Thanks!

[JonB ~ PartsRack]

Pads and Other Stuff shipping TODAY and Friday.

Welcome back!

[Arizona Vipers]

Hey Dan, do you have your CCB setup still? Are you looking to sell it? How many miles on the rotors? I'm piecing them together for my 2013 Turbo project..

[CarbonDan]

Hey Dan, do you have your CCB setup still? Are you looking to sell it? How many miles on the rotors? I'm piecing them together for my 2013 Turbo project..

I do still have my OEM CCB rotors, utterly PRISTINE condition, maybe ~1000 street miles on them, no hard use ever.
Sitting in some comfortable boxes in an airconditioned corner in my office, waiting for the day they'll be put back on for the car to be listed on BAT for $700k and I'll be expecting you to start a thread about it and comment about how perfect my rotors look. :t0140:
I feel I have to hold onto them, even though its foolish to leave that much cash sitting in a box for a car I likely will never sell, being devalued by the day.

What's funny is that when I swapped my viper CCBs for girodiscs, I literally could not tell the slightest different in road feel at all. But when I just swapped my 2018 Porsche GT3 oem CCBs for Girodiscs, I could tell a pretty dramatic different in handling characteristics on road immediately, in a negative way. The car went from razor sharp to almost clumsy on rebound, and you could constantly feel the added weight at all speeds.
I wonder if the lower vehicle weight of the GT3 makes that effect more pronounced? In which case you'd surely notice a big difference on your cars.

Strange how I couldn't perceive a difference on the Viper yet a big one on the GT3 doing the same modification.
I love the girodiscs on the viper on track though, they're fantastic. Still amazed at how much life you get out of your CCBs on your cars.

[CarbonDan]

Hey Dan, do you have your CCB setup still? Are you looking to sell it? How many miles on the rotors? I'm piecing them together for my 2013 Turbo project..

Actually... you know... it is hard to justify setting them in a box. Make me an offer I can't refuse and they're yours. They should have have about 1200 miles on them with no track time.
I bought the car with 600 miles on it and the previous owner for certain had never tracked it. I have the original pads too with almost all life left on them as expected.

[Arizona Vipers]

I do still have my OEM CCB rotors, utterly PRISTINE condition, maybe ~1000 street miles on them, no hard use ever.
Sitting in some comfortable boxes in an airconditioned corner in my office, waiting for the day they'll be put back on for the car to be listed on BAT for $700k and I'll be expecting you to start a thread about it and comment about how perfect my rotors look. :t0140:
I feel I have to hold onto them, even though its foolish to leave that much cash sitting in a box for a car I likely will never sell, being devalued by the day.

What's funny is that when I swapped my viper CCBs for girodiscs, I literally could not tell the slightest different in road feel at all. But when I just swapped my 2018 Porsche GT3 oem CCBs for Girodiscs, I could tell a pretty dramatic different in handling characteristics on road immediately, in a negative way. The car went from razor sharp to almost clumsy on rebound, and you could constantly feel the added weight at all speeds.
I wonder if the lower vehicle weight of the GT3 makes that effect more pronounced? In which case you'd surely notice a big difference on your cars.

Strange how I couldn't perceive a difference on the Viper yet a big one on the GT3 doing the same modification.
I love the girodiscs on the viper on track though, they're fantastic. Still amazed at how much life you get out of your CCBs on your cars.

This is very interesting. I think it's due to the Viper already having WAY more unsprung weight, the front Porsche tires are like 245's, right? The GT3 is just so precision, delicate and agile with very little weight up front it's gonna make a bigger difference. For me 65-70 lbs unsprung weight is just GIGANTIC, even if you don't really "feel" it on the Viper. Look how much money we spend on forged wheels etc just to save 1-2 lbs a corner. CCB's are 17 lbs a corner. Just a massive leap in handling performance..... Maybe has something to do with why car does so well on track lol...

[JonB ~ PartsRack]

The 'gigantic' added un-sprung mass is also ROTATING mass, the worst kind.

Your pad-friction matters....not as efficient vs the mass

Add in relativity % increase vs OE package and the P-GT is like driving a Scalpel vs. the Viper like driving a Mallet