They’re here! Big steel brake conversion rotors and pads showed up. My these 15.4 inch steel rotors are big.
Have not weighed them yet to compare them to the weight of the carbon rotors but I will later. Going to try to make up part of the difference with lightweight wheels.
These are racing rotors and racing brake pads I’m not sure how good they’ll be for a lot of street driving but I’m told it won’t be too bad.
I’m also told that these brake pads are excellent and have better initial bite and will last a really long time. Just look at the metal in the compound!
This mod might just make this car an affordable very fast track monster.
So you are leaving the calipers and swapping out rotors & pads?
I was wondering about doing the opposite on the front end of my QV bc it has the same size rotors as the CCB rears on the QV.
Depends on what your goal is and how much engineering you want to do yourself. Changing the calipers sounds pretty dicey to me with brake bias and ABS being designed a certain way with certain calipers.
Just changing the rotors and pads is what most conversion kits are. All of the Porsche people do it that way. Girodisc is a well-established company with great products. I trust them to do my engineering mod work.
My motivation was occasionally tracking with this car was super expensive with the brake consumables. The brake quality was very good and they didn’t overheat much it was just too expensive and you have to change the pads every two or three days as they didn’t last long.
I’m really excited about this conversion because the rotors are racing rotors, are somewhat lightweight, slotted and durable. And the Raybestos ST43 brake compound is well tested and known in the racing community.
Here is a vendor description:
Raybestos ST-43 are our favorite intermediate track pad. Very aggressive pad, yet easy on the rotors. They are down slightly on overall friction and initial bite from the most aggressive offerings, with the flipside being lower running temps and increased component life. Make no mistake, these pads are the real deal. We have customers running them in Ferrari Challenge cars, Evo's, STi's, Vipers, Corvettes and more. If you rely on ABS, these pads will be more forgiving with their initial bite. When you read the factory literature for these pads, they downplay them a bit as being not very aggressive. When you consider these are developed for Nascar (read heavy, high-horsepower, lots of tire and downforce), "Intermediate" means "Full Boogie" in a 350-400hp amateur driven sports cars. These have been tested by countless customers and given the universal thumbs up for overall performance and satisfaction. Run what the winners run!