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A morse test is sued to determine the mechanical efficiency of a petrol engine. these are the results

Torque (Nm)

No plugs shorted 91

no1 shorted 63

no2 shorted 64

no 3 shorted 65

no4 shorted 65

engine was ran at 2000rpm. determine the engines indicated power.

now i have an equation but its for using brake power. my equation is:

A= Brake power with all cylinders working

B1,B2,B3 and B4= Brake power of the engine with each of the turned off in turn

Using the formula:

Total Indicated power = (A-B1) + (A-B2) + (A-B3) + (A-B4)

= (A*4)-(B1+B2+B3+B4)

i get a answer of 107 nm roughly. now that seems abit high to me. i was just wondering if someone could tell me where im going wrong. i know the equation is wrong. just i cant see any examples using nm instead of brake power.

thank for your help guys :D

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# Homework Help: Morse test

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