The rear brakes still used a sold rotor but larger rear calipers with bigger pad area are being used.
Fast forward to 2018, the tires are getting stickier, just about all competitive cars have 1000 plus horsepower and a guy from Ireland named James Deene has stepped up the game even more. The cars are faster, the angle needed is even greater and the need for more driving precision to follow the lead car even closer became more important than ever. Left foot braking to gain angle and to control proximity became even more prevalent as a driving style and when brakes have to hold back 1000 plus horsepower driven by fat sticky tires, the demand on the system increases even more.
For our team, our brakes were adequate in performance but we were using a very aggressive high mu pad to get the results we wanted. Our brakes were impressively shooting sparks and glowing red-hot in many of the rounds and we had pretty rapid wear of the rotors and pads. However, the brake worked decently and we just put these things on a list of stuff to be swapped out in normal between rounds maintenance.
We did see a need to improve the brakes and we asked Stoptech to become a technical partner with our team to help develop a drift specific braking system to meet our needs better. As a first step, Stoptech’s engineers sat down with us to better understand the shortcomings of our current system and what we would need for better performance out of the brakes. They then developed the system we are gonna show you specifically for our car and team.
Our front brakes use the Stoptech STR-60 six-piston Trophy Sport caliper and a 328x 35mm aero rotor. This system has a significant increase in thermal capacity over our old brake system.
The Trophy Sport caliper is forged into a near net shape billet then CNC milled for light weight without sacrificing stiffness. The caliper also has a bridge assembly to make it ultra stiff which improves pedal feel. It has a hard anodized finish which is tough and corrosion resistant. Stoptech, with their large variation of caliper piston sizes, was able to build us a caliper that was compatible with the master cylinder piston sizing in our current pedal box. We wanted a little more gain in our front brakes so Stoptech made our front piston area slightly larger. Our STR-60 caliper also had more pad volume and more swept area which also helped our brakes have more bite with less stress.
Our calipers were loaded with Stoptech’s SR32 compound which has high initial bite and linear torque rise with increasing heat coupled with good wear characteristics for both the pad and the rotor. Stoptech felt that this compound should work well for drifting.