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Message: <blockquote data-quote="toyman" data-source="post: 612350" data-attributes="member: 10841">Sorry, but 500 hp isn't supported by the math.HP= (Nc x injector x dc)/ bsfc where:HP = Horse PowerNc = Number of cylindersdc = Duty Cycle ( Injectors are engineered to operate at 80% dc but can be pushed to 100% for brief periods) Note that at 100% dc the injectors are always open.bsfc = Brake specific fuel consumption (fuel efficency of the engine)This factor is about .50 lbs fuel per hour/horsepower for most high performance engines.So, the math is.HP = (8 x 19 x 1)/.5 = 304. Even if we can squeeze a a bit more fuel and use a bsfc of .46 the hp increases to only 330.The 19 lb injectors at the engineered dc of 80% will comfortably support 243.2 HP.</blockquote>