Now the parking brake was reassembled.
The axle nut and the cotter pin were reinstalled.
You can see how the big CCM rotor is bigger than the big Brembo performance rotor. They are both wide annulus and have more swept area than the stock rotor. The CCM rotor has about 50% more swept area than the narrow annulus stock rotor.
The CCM rotor is 32mm thick, thicker than the 30mm thick Brembo performance and the OEM stock rotor. The CCM rotor has more float with bobbin retaining pins like the front rotors. This is needed due to the CCM rotor’s higher coefficient of expansion. The main advantage of the Nismo system is that all the components are sized around the properties of CCM. All of the other aftermarket CCM retrofit kits for the GT-R on the market are the same size as the stock parts and don’t have the thermal mass, pad volume, or swept area as the Nismo system that matches the thermal properties of the CCM material. They will probably oxidize the rotors with really hard driving at a fast rate. They are probably awesome on the street but not good for the track. The Nismo system will have a much higher capacity for heat.
The rear rotor is now installed over the parking brake.
11 comments
As always, great content. Thanks for all the info on parts I can only dream of having. I feel I can’t even afford to read the article. (I’m one of your IG followers and long time SCC subscriber)
I personally don’t think they are cost-effective but they sure are cool!
did you guys weigh the rotors? kinda curious about the actual weight difference over just the generic 30% lighter…
Yes on the last page, we saved 40.4 lbs over the OEM brake system.
With such a difference in rotor diameter and a greater difference front vs rear, does the brake bias change at all? 40lbs of rotating and unsprung mass saved is crazy. Makes the price seem realistic if you’re chasing the absolute best feeling possible.
No, it doesn’t change, it’s factory-engineered.
I had always been told that larger rotors on a street car are actually detrimental, since it takes longer for them to reach optimal temperature for good braking. Does the same apply to carbon ceramic rotors?
That’s not true at all. Bigger brakes allow you to run streetable less aggressive pads on the track. Race pads will literally eat rotors on the street in a few hundred miles. Big brakes allow true dual-purpose use. More brake power is typically also easier to modulate.
Just out of curiosity, can you recommend any places to source these on the used Japanese market like you guys did?
I used google to find a set and had a Japanese friend ship them to me.
There’s a website called, Croooober.com, that you might want to check out.