Wilwood Calipers

[Bill71]

I have a set of 4 piston Wilwood calipers for my rear suspension kit from Speedtech. The rotors are 13". I am planning to get a Wilwood 6 piston kit for the front with 13 inch rotors. My concern is the balance in piston area front to back. The 6 piston area is 4.04" and the 4 piston are is 1.96". This is a bit more than the typical 1.5-1.8 f/r ratio I have seen on here. Will this create a situation where the front is doing all the work? The car is a gutted 2nd gen Camaro which is built primarily for track days, not daily transportation. I want to do this right the first time as it gets too expensive to do it a second time! If this setup will work does anyone have a master cylinder recommendation? I am open to using a dual master setup too.

[Apogee]

Wilwood has numerousl calipers that run 1.98 square inches of piston area, including their D154, Dynalite, Dynapro, Superlite and W4A models, resulting from the combination of twin-1.125" diameter pistons. While I would prefer more 1.125/1.25 staggered piston options with 2.2 sq. in. piston area, they should work just fine with a 4.04 sq. in. front caliper.

Assuming manual brakes, I would opt for the Wilwood 7/8" bore master cylinder with and adjustable proportioning valve. A dual MC setup with balance beam would be more optimal for tuning assuming a 100% track car, as they're designed to optimize for maximum deceleration...they won't however be optimized for normal around town partial decel type stuff. Wilwood can help you with the bore sizes for your application if you can provide them with corner weights, CoG, etc.

Tobin
KORE3

[Bill71]

Since I don't have corner weight and CG numbers I will just go with a 7/8 and prop valve. Thank you for the insights.