Piston velocity is in feet per minute, rod angle to bore is calculated in degrees, and crankshaft angular velocity is in radians/minute computed from max RPM input. The calculator also computes the distance the piston is from TDC per crank degree and is useful for many further calculations such as expected valve to piston clearance. Further calculations will allow you to calculate features such as theoretical max inlet demand. This calculator can be used to calculate bearing frequencies based on manual input of bearing geometry data. what is the minimum radial clearance for piston to valve clearance In other words how much clearence do I need between the out side diameter of the valve. The calculator allows one to investigate rod/stroke ratio and piston velocity changes around TDC. Furthermore, increased availability has made these technologies available to masses and not just a select few of elite engine builders. Current technologies in the rods, bolts, and crankshafts have made dramatic increases in component strength allowing them to operating higher velocities when compared to older manufacturing processes. As an example, on a steel connecting rod engine with a piston-to-head clearance of 0.035 inch, the minimum P-V clearance for either the intake or exhaust valve could be 0.045-inch. the remaining space of the combustion chamber where the spark plug and valves reside. Piston velocity is also used in the calculation of “g” loading of the reciprocating parts and the required strength of these components needed for high velocity operation. RB Racings Squish Band Calculator for engine and piston design. When the piston applies force to the air it translates energy into cylinder filling and if the energy is high enough we can expect the cylinder to overfill causing effect VE to be over 100%. High piston velocity promotes performance when linked to the proper intake/exhaust tract and valve timing.

Piston velocity is a critical component of engine performance and expected durability. Camshaft - What goes In is What Comes Out.Trick Flow Cylinder Head and Camshaft Issues.Low Vacuum Bypass Valve Install Details.Billet Oil Pump Gears, OEM Oil Pumps, and Oil Pans.

Piston to valve clearance calculator