No takers….

Ok, so the 3.5L OM603 has a redline around 4300RPM.

I’m going to assume that the pump per the above picture flows 150cc/30s at 150rpm. So that’s 300cc/min at 150RPM. Or 2cc/stroke.

The big assumption is that one rpm = one stroke. Please let me know if this is incorrect.

So if it’s 2cc/stroke, and the engine runs at 4300RPM, that’s 8600cc/min. 8.6LPM.

8.6LPM=136GPH. That’s a huge flow.

Say at speed on the highway it’s more like 3000RPM. That’s 6000cc/min or 6LPM.

Still 95GPH.

Seems high.

What am I missing??

If it’s really more like 150cc at 500RPM, and then it increases accordingly to say, 1350cc/min at ~4300 rpm, then we’re talking 22GPH. Seems more reasonable.

Thoughts?

Anyone know the spec for the 616/617 engines?

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