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Message: [QUOTE="Charles, post: 145090, member: 103"] In terms of what was initially being discussed yes, the SOI point to stay within the bowl doesn't change with variable rpm when looked at in a static sense. However... as you probably already know, in reality there is actually some measurable variance in the maximum timing that will stay in the bowl when the engine is actually at these rpm, as the piston is actually moving toward the nozzle at great speed when the injector fires. Given a finite fuel spray velocity, a higher engine operating rpm actually brings the bowl closer to the nozzle quicker... in reality allowing for SOI values that would actually spray outside the bowl if fired static, to land well inside the bowl when the engine is actually running at these speeds. [/QUOTE]

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