I'm using Pagid RST3 and I'm getting ~15H. And about 30H on the rotor, YMMV. For comparison I was getting about 5H for the same RST3 on the stock Brembo.
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How many track days are you guys getting on a set of pads and rotors? Do you street drive at all with the 9668 setup?
Thanks
Tom
15H meaning days or 20-25 minute lapping sessions? I usually get in about 4-5 20/25 minute sessions and about 4-6 days if that makes sense. I'm looking at the full AP Kit for the car, big 9668 for the front and the Stillen rear kit (I realize they aren't total race setup) but I want something to match the front and also want to get some more bite on the rear. I don't know anyone thats run their rear setup yet tho.
Good heads up thanks! Its still a street car but next year plan to do 12+ track days. If I could get the J hook rotors that match to work with the PFC bracket that would be ideal... Did you notice your braking distances shorten up quite a bit along with the increased longevity?
15H meaning days or 20-25 minute lapping sessions? I usually get in about 4-5 20/25 minute sessions and about 4-6 days if that makes sense. I'm looking at the full AP Kit for the car, big 9668 for the front and the Stillen rear kit (I realize they aren't total race setup) but I want something to match the front and also want to get some more bite on the rear. I don't know anyone thats run their rear setup yet tho.
If you have the money, get the big one.
I have been running them for 1 year now and they're awesome. And brake fade is a thing of the past.
I get about 15H+ for a set of brake pad (Pagid RST-3) and the discs have 30H+ and are still OK.
Comparing to the stock Brembo I was only get about 5H for a set of pad and 15h-20H on a set of disc.
Current wear on the rotor after 13 track days
Nice!
Does the big kit fit under 18'' wheels?
https://www.apracing.com/product_de...68-2_/-3s7l-180mm_centres-25mm_thick_pad.aspxDoes anyone know the piston sizes on these kits? Been researching a lot of options and its important for me to keep the system close to OEM spec hydraulically and I haven't found anything on the AP kit.
@Hasan M To keep the brake bias the same and maintain hydraulic balance you need to look not just at piston sizes, but also mean swept rotor disc radius.
Effective brake torque is Av Radius * Total Piston Area.
Both AP Racing (the UK factory website) and Brembo Racing publish "customer drawings" of their calipers. Those drawings have the Effective Radius shown on them.Yes, I'm familiar with the physics of braking systems.
When you say average radius, how would you determine that? Do you consider the pad height starting with the max radius and averaging with the pad height? It sounds quite difficult to find all this information. I've been only considering the max radius of the rotor.