Convert pedal force into hydraulic pressure in the front and rear circuits.
Two Tilton 78-series cylinders on a balance bar. Bore diameter sets the pressure generated for a given pedal force, and the ratio between the two bores sets the base brake bias before the balance bar trims it.
Front and rear bore combinations were swept before selection: 5/8 front with 3/4 rear, 5/8 with 7/8, 7/10 with 13/16, 3/4 with 7/10, and 5/8 with 15/16. 5/8 in front and 13/16 in rear was chosen.
At the selected sizes: wheel lock at 1.84 g, front pressure 8.4 MPa (1220 psi), rear pressure 5 MPa (720 psi), pedal force required 137 lbf, pedal sensitivity 340 N/g (77 lbf/g). Highest deceleration ever recorded on the car is 1.62 g (Corbin Glancy, NASCAR, 7 October 2023); repeated braking events sit at 1.48 g.
Tilton 78-series, purchased.
Fault Vault, CR26I: the master cylinder and bias bar combination had one degree of freedom too many, causing brake migration. The master cylinders were zip tied in place for competition.
Front 5/8 in bore, rear 13/16 in bore. Quantity per car, as costed: 1
Nothing in CrimsonStorage covers these yet.