Procedure for obtaining the corrected heat-rating values (indicated mean effective pressure, IMEP) of spark plugs rated in the SAE 17.6 cubic inch rating engine (SAE AS840).
This report describes basic method for measurement of spark energy on all types of capacitance discharge exciters. Reference is made to other methods which may be used if limitations are observed.
These specifications contain general information pertaining to the sparking voltage parameter of shunted surface gap spark igniters; test equipment circuitry; bill of materials for test equipment; test equipment operation.