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Old 01-20-2014, 11:02 AM   #1 (permalink)
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Electric Water Pump EWP80

Okay
We are familiar with Echo Troll(Canada) modifications. I have interest in the electric water pump . He went with a davies craig ewp80 electric water pump and installed in a TOYOTA. I am kinda considering modificiaton however have the following concerns:

space
mounting, mating , install in lower radiator space.
wiring connections.
do you remove belt driven water pump and if so how do you cover the new hole created.???
I like the idea of more engine torque and no belt but have concerns on how to get there..........

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Old 01-20-2014, 01:43 PM   #2 (permalink)
40-60-40 MPH P&G
 
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i will try to answer some of your question:
space: my a/c delete helped me on my echo but what car you have?
you will receve wiring instruction and mounting instruction if you buy the ewp
i did not remove my water pump. what I did is remove the impeller
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Echo-Troll Modding Thread

I know i dont have a very good write-up
no lean-burn? no good gear ratio? p&g is the answer
MPG=1 TIME=0
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Old 01-20-2014, 02:09 PM   #3 (permalink)
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Great thread idea. Subscribed. If there were a way to do this an make it reversible for emissions inspection, I would consider doing it. It's a great mod.
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Old 01-20-2014, 03:28 PM   #4 (permalink)
40-60-40 MPH P&G
 
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In my case it is not a reversible mod. But i dont Know why it Would affect emission ?
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Echo-Troll Modding Thread

I know i dont have a very good write-up
no lean-burn? no good gear ratio? p&g is the answer
MPG=1 TIME=0
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Old 01-20-2014, 03:38 PM   #5 (permalink)
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Quote:
Originally Posted by California98Civic View Post
Great thread idea. Subscribed.
+1 I've been wanting to do this since I saw echo-francis do it. Maybe this will give me the courage to do such a thing. (well, that and the money! )

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In my case it is not a reversible mod.
I assume you mean not easily or worth the effort to have it reversed for an hour?
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Old 01-20-2014, 04:19 PM   #6 (permalink)
40-60-40 MPH P&G
 
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to reverse it I would have to but a new mechanical water pump and 2 new water hose and it would be very PITA
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Echo-Troll Modding Thread

I know i dont have a very good write-up
no lean-burn? no good gear ratio? p&g is the answer
MPG=1 TIME=0
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Old 01-30-2014, 08:33 PM   #7 (permalink)
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Since Honda has discontinued a water pump design that fits about 500 of their motorcycles, and I went though hell finding one for a friends '97 vfr. After that 3 month crusade, I decided to look into replacing the Honda pump with something without a mechanical shaft seal.
I found that bosch makes a pump called the PAD pump that uses a mag coupled drive and only draws a few amps (less than the Craig pump). Its on my list of things to try on the HHO VFR, but its not at the top of the list.

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Old 01-30-2014, 08:38 PM   #8 (permalink)
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Flow rate(s) vs. pressure(s)?
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Old 01-31-2014, 01:02 AM   #9 (permalink)
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Quote:
Originally Posted by Old Tele man View Post
Flow rate(s) vs. pressure(s)?
I've got this chart, just remember most engine driven pumps don't move much water at idle.

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Old 01-31-2014, 11:12 PM   #10 (permalink)
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...sorta *implies* the use / insertion of either: (a) metering plate/orifice or (b) adjustable value to control/limit coolant flow at engine idle, but not at full load conditions.

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