Wednesday, May 29, 2013

Porterfield Pads and a Rear Brake Proportioning Valve

(Click any image below to view in larger format)
At the previous race, the front pads were gone before the rears hit 50% life. Now it is time to add a really coarse Porterfield R4-1 race pad to the rear and try the R4 on the front. The proportioning valve is installed to turn down the factory pressure going to the rear brakes. This helps adjust to track conditions, air temps, and brake bias during the race!
PorterField R4-1 Pads for the rear.

Friday, May 24, 2013