Water pump 1, Opti 0
06-30-2011, 04:41 PM
#21
^^^
this info is years old but does show diff between running OEM gear driven vs EWP.
The EWP draws about 7 amps IIRC. There would be some "load" on engine since the motor is turning the alternater which is seeing an additional 7 amp draw on a alternator already spinning...would be minimal if any more without a EWP I assume but it would pencil out to some form of additional load
In my case I went EWP to stop the cycle of leaking pumps and Opti damage...the HP gain is a +.
There is a point from some the EWP will not flow as much as gear driven wp at high RPM's...this may be true but actual sustained high RPM conditions is not a large part of my driving.
With 200+ passes my EWP motor runs just as cool as it did with the OEM pump.
this info is years old but does show diff between running OEM gear driven vs EWP.
The EWP draws about 7 amps IIRC. There would be some "load" on engine since the motor is turning the alternater which is seeing an additional 7 amp draw on a alternator already spinning...would be minimal if any more without a EWP I assume but it would pencil out to some form of additional load
In my case I went EWP to stop the cycle of leaking pumps and Opti damage...the HP gain is a +.
There is a point from some the EWP will not flow as much as gear driven wp at high RPM's...this may be true but actual sustained high RPM conditions is not a large part of my driving.
With 200+ passes my EWP motor runs just as cool as it did with the OEM pump.
06-30-2011, 06:42 PM
#22
On The Tree
Join Date: May 2004
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Yeah, it is old info, but it was the only graph I readily knew how to find. I've seen others.
FWIW, I am not promoting this as some kind of awesome HP-adder bolton mod. This is strictly a convenience thing, the HP gain is a minor side benefit.
FWIW, I am not promoting this as some kind of awesome HP-adder bolton mod. This is strictly a convenience thing, the HP gain is a minor side benefit.
