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Here’s a look at our installed Wilwood/UUC passenger-front corner. With the proper shims, the rotor should be centered and spin freely inside the caliper, and ours thankfully does. Also notice the optional fifth bridge bolt for added strength, which also acts as an easy-access pad release.
If you’ve got the coin, Wilwood offers an even more serious setup for the all-out racer. For an extra $315 per corner you can purchase Wilwood's six-piston caliper featuring optional thermolock pistons and a nickel-plated finish.
For our rear setup, we’re using a Wilwood DynaPro Lug Mount forged billet caliper. It’s 4-piston configuration keeps it legal for various SCCA and BMW CCA racing classes where piston count is limited. The 1-in pistons are made from stainless steel for its reduced heat transfer properties.
The DynaPro caliper is stress-flow forged from premium grade billet aluminum. The stress-flow process realigns the metal within the contour of the body design for added strength over a simple machined billet construction.
The FEA-generated body design uses a highly fortified radial transition that eliminates steps and shoulders between the piston housings and the bridges, which increases resistance to deflection and body separation. Reduction in overall deflection and the subsequent decreases in fluid volume displacement translates to increased clamping force with less pedal travel.
Our rear calipers feature the standard Quick-E clip pad retainers that support a 7812-type brake pad. Not only does the clip provide a fast pad service without a caliper removal, the bottom pad supports have been removed to create a slimmer profile, allowing the caliper to be installed in a tighter clearance.
Like the front Superlite calipers, the Wilwood DynaPro also features internal fluid passages and four-corner bleed screws that allow mounting in any front, rear, left or right side positions.
Our rear rotor replacement from UUC is an O.E. size (12.9in/328mm) and weighs 16 lb, which was 6 ounces (0.4 lb) heavier than our heavily-worn stock unit. Visibly, however, this rotor seems a little better ventilated than stock, and offers full emergency brake function as well. When ordered, UUC sends its customers matching rear slotted rotors. Since they were out of stock UUC sent us non-slotted units so we could quickly move forward (and then stop..padump psh!).
