I'm curious if there is any info out there about these cup car brake kits installed on GT cars?

TPC installed them on their turbo, but no real review or info that I can find.

I want to track my GT car more and looking for more clearance on 19" wheels from my pccb calipers. On my last GT car I ran 19" wheels with pccb and small rocks etc really took a toll on them and the inner barrel of the wheel.. My largest concern is the use of the factory brake master cylinder/booster/abs systems. I have no idea if the cup brake system is the same or even close to the street going system. I defiantly don't want to solve a problem and create a much larger one.

I second your thoughts Zoran.......none of my cup car buddies complain about stopping power. I also know that the cars have "braking system's", so it's not always about the individual parts but the improvement of the whole. I'm not going to overhaul the entire street car system for the cup race system, as that's not realistic imho. I'm sure it could be done but at what cost, etc?

More of my interest is can and does the cup calipers work better than oem with std abs, master cylinder volume, and booster? Obviously still need to have modulation and pedal feel, etc etc.

The wahoo pedal is just as dangerous, as the loud pedal when used wrong.......and I'm not perfect.

As of Dec 2018, we have done only one 991 Cup PFC brake conversion at this time. It is on our shop car. We paired the PFC 991 Cup calipers onto street car uprights by custom machining the parts to fit. By engineering calculation the 991 Cup brake conversion had shown to be a substantial upgrade in braking performance. The purpose of our custom conversion was to test the real world performance and feel with OEM GT3/RSstreet car "fixed" (non-adjustable) master cylinder and power brake booster maintaining the same braking bias and power assist ratio of a GT3/RS street car. The stopping power and balance is phenomenal as you’d expect. This car was built for the OPTIMA Ultimate Street Car Challenge where each car is judged by the lap times, build presentation and uniqueness, and streetability. The point system in this series prevents competitors from taking a Cup car and put an interior in it then call it a street car. This series is intended for taking a real street car and modding it up to competitor's best creativity using current high performance technologies.

(Update) As of Jan 2020, TPC has been working closely with the PFC engineering team to bring to the market true bolt-on brake kits (available in 405/380mm and 380/380mm) for all 991-platform cars featuring the same ultra-rigid monoblock caliper forging and all other performance features as the highly-praised 991 Cup brake system designed and manufactured by PFC. Product link- https://www.tpcracing.com/product/tp...ke-kit-by-pfc/

Thanks for clearing this up for us.....neat sounding competition.

No problem. Our Optima car did extremely well this year but didn’t attend all the races due to scheduling conflict with IMSA GT3 Cup Challenge. Zero braking issue. We are working to get the package to be competitively priced.