Calculators

Engine Intake Diameter Calculator Calculate optimal intake valve, port, and throttle body diameters for maximum engine performance Engine Displacement Displacement ...

Chain Sag Calculator Calculate roller chain sag, tension, and wear limits for proper drive alignment and longevity Chain Pitch (inches) ...

40:1 Mix Ratio Calculator Calculate precise two-stroke oil mixture ratios for small engines, chainsaws, and power equipment Fuel Amount Fuel ...

Traffic Index Calculator Calculate congestion indices, level of service, and traffic flow metrics for transportation engineering Traffic Volume (vehicles/hour) Road ...

BSFC Calculator Calculate brake specific fuel consumption, thermal efficiency, and engine performance metrics Engine Power Output Power Unit Horsepower (HP)Kilowatts ...