Engine Speed Conversion

Ask SEMT Pielstick. They made the engine.

Dear Mr. ARNULFOPALACIO,

It is not possible to convert/alter the speed of an internal combustion engine which is designed and already built. The basic Equation for an internal combustion Engine is

I.H.P. = (P x L x A x N)/ 33000

where H.P = Power developed by the Engine, known I.H.P. i.e. Indicated Horse Power,

P = Mean Pressure developed in PSI (Pounds per Sq.Inch - British Unit) in side the Engine Cylinder,

L = Stroke of the Piston in Feet, (3.28 Feet = 1 Metre),

A = Effective Area of the piston, in Sq.Inches ( 1 Inch = 2.54 cm or 25.4 MM)

N = RPM of the Engine.

From the above you can see nothing can be changed. If you are particular to have higher speed, then use a belt and drive or gear box of suitable ratio, in your case the ratio is 1:1.23

DHAYANANDHAN.S