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Neil Harvey Neil Harvey is offline
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Join Date: May 2004
Posts: 240
"""I really do fail to understand how porting a gear pump increases flow and without specific test data I will remain sceptical. """


I too do not understand how porting these pumps increases flow. My understanding is, there are 3 factors that can increase flow. Gear diameter, number of teeth and pump speed.

Lowering any restrictions would decrease the work done by the engine to turn the pump and may result in adding that work to the crank output.

This is another area of "engineering by mythology" the Porsche world has live by for years and continues to.
Old 09-24-2017, 08:42 AM
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