We stopped by the PFC Brakes booth to get a better look at the V3 floating rotor assembly. Floating rotors are nothing new in racing, but the installation and assembly of PFC Brakes’ V3 rotor is pretty incredible for the dirt track market. We cornered Chris Dilbeck, PFC’s short track guru, for a personal demonstration on their patented V3 two-piece rotor system.
Watching Dilbeck install and remove the rotor in less than 10 seconds several times-in-a-row told us how simple but complex this kit really is. There are only three pieces: A rotor hat, the rotor, and a snap ring. There is no hardware! No bolts that attach the rotor to the hat, therefore … no wrenches needed.
The rotor is machined with flanges that mate with flange pockets on the rotor hat. There are grooves in both that allow for the snap ring to secure the two components together. The concept is simple but the machine work is very complex and genius.
In using the two-piece rotor system this way, there is reduced heat transfer from the calipers to the hub assembly. A reduction in thermal transfer also equates to less chance for thermal distortion and warping. These are major considerations in short track racing.
The unit obviously has even less weight due to the lack of hardware. Like most two-piece rotor systems, the hat is reusable, which lowers maintenance costs. Dilbeck also tells us there is no rattle because of the snap ring’s design.
For Super Late Models, Crate Models, Modifieds, and Big-Block Modifieds, Dilbeck recommends the ZR24 caliper that is built with strength for robust braking with less risk of damage or failure.
For more information on the V3 two-piece rotor system or the ZR24 caliper, please visit them online at PFC Brakes.