Oilpan... the 3 mpg number you speculate fits nicely with the 2 or 3mpg I thought I saw jn my Civic after removing the PS system.
Quote:
Originally Posted by MkVer
I wonder if you could put a solenoid controlled bypass line in so at highway speeds the pump pretty much free spins....
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Or an electromagnetic clutch for the pulley like most alternators have now. The ECU could just disengage the pulley under certain conditions, as it does a "smart" alternator. "Smart" pulley driven power steering pump is born. Could put such a pulley on an "on/off" switch too and ckntrol it from the dash. So you would only draw power from the engine at the low RPMs that oilpan is saying draw very little power. But his test was without turning the steering wheel, so wouldn't turning the wheel increase power draw somehow?