Brake Force Calculator
Automotive brake force calculator designed for evaluating brake performance based on various parameters. It includes data on brake pedal and master cylinder specifications, such as length, bore size, and pressure. The sheet also provides detailed information on caliper types, bore diameters, and pad coefficients of friction for both front and rear brakes. Users can analyze rotor and tire diameters to optimize braking systems effectively.
Content article
The Brake Force Calculator provides detailed insights into various brake system parameters, including measurements and performance metrics for both front and rear brakes.
In the brake pedal data section, the master cylinder features a length of 18 mm with a bore diameter of 0.875 inches, while the clevis measures 3 mm. The system operates under a pressure of 75 lbs, resulting in a line pressure of 749 psi, with no assist and a ratio of 6 to 1. The brake data section lists different calipers, including the GM Large/D52 and the GM HD/D52 for the front and rear, alongside the 97 Camaro PBR calipers. The front caliper bore diameters are 2.9375 inches for the GM Large/D52 and 2.5 inches for the 97 Camaro PBR, while the rear caliper bore diameters are 3.15625 inches for the GM HD/D52 and 2.5 inches for the 97 Camaro PBR. Brake pads used are Thermoquiet for both front and rear, with a coefficient of friction of 0.3. The rotor diameter is consistent at 11 inches for both front calipers and 11.6 inches for the rear, while the tire diameter remains uniform at 28 inches across all setups.
The results section reveals that the caliper piston area, calculated for two pistons, is 13.55 sq in for the front GM Large/D52, 9.82 sq in for the rear 97 Camaro PBR, 15.65 sq in for the front GM HD/D52, and again 9.82 sq in for the rear 97 Camaro PBR. The clamping pressure generated by these configurations is significant, with values of 10,149 lbs for the front GM Large/D52, 7,355 lbs for the rear 97 Camaro PBR, 11,722 lbs for the front GM HD/D52, and again 7,355 lbs for the rear 97 Camaro PBR. Torque applied to the rotors is measured at 1,395 ft/lb for the front GM Large/D52, 1,066 ft/lb for the rear 97 Camaro PBR, 1,612 ft/lb for the front GM HD/D52, and again 1,066 ft/lb for the rear 97 Camaro PBR. The brake force generated is 1,196 lbs for the front GM Large/D52, 914 lbs for the rear 97 Camaro PBR, 1,382 lbs for the front GM HD/D52, and again 914 lbs for the rear 97 Camaro PBR.
Total brake torque is calculated at 2,461 ft/lb for the front and 2,678 ft/lb for the rear. The total brake force is noted as 2,110 lbs for the front and 2,296 lbs for the rear, indicating a brake bias of 57% for the front and 43% for the rear in the first configuration, and 60% for the front and 40% for the rear in the second configuration. A specific calculation for a 70/30 total brake force yields 1,710 lbs for the front and 1,976 lbs for the rear.