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George Lendich wrote:
Bill,
Point taken!
I hope the 16X is better. Can't understand why Mazda would make such a shitty impeller for what appears to be a well thought out , lightened water pump.
George
Because it is much, MUCH cheaper, and will at most drop the efficiency of the pump from 90% to 85% at most? (yeah, I made those numbers up, but it will be somewhere in the ballpark.) If they were concerned about more flow, they would just make the cheaper impeller a mm larger in diameter. Or maybe they looked at failed units and saw that they all died of bearing failure, and none died from cavitation erosion of the impeller? They are, after all, in business to make money, not to please a certain aesthetic with no engineering basis.
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