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electric water pump on magnum motor - belt routing #3143356
05/09/23 10:25 AM
05/09/23 10:25 AM
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Houston, Texas
TheOtherDodge Offline OP
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Has anyone used an electric water pump on a magnum set up that has retained all the accessories? If so, how was it done, extra idler, belt routing, etc? Thanks! wave

Re: electric water pump on magnum motor - belt routing [Re: TheOtherDodge] #3144773
05/15/23 03:38 PM
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TheOtherDodge Offline OP
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No one has done this huh?

Re: electric water pump on magnum motor - belt routing [Re: TheOtherDodge] #3145527
05/19/23 10:13 AM
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I did a search on a Dakota forum I'm a member with and saw nothing. Another search just showed the people saying electric is not suitable for street. You'll have to go to some forums and really search up the subject. What I did find was from 2012.


Keep old mopars alive.
Re: electric water pump on magnum motor - belt routing [Re: 2boltmain] #3148017
06/01/23 04:02 PM
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Yup, that was what I found. The electric WP will be fine for the street as long as it is not 100 degrees and stuck in traffic, which I don't drive it under those conditions.

Re: electric water pump on magnum motor - belt routing [Re: TheOtherDodge] #3148043
06/01/23 06:57 PM
06/01/23 06:57 PM
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Originally Posted by TheOtherDodge
Yup, that was what I found. The electric WP will be fine for the street as long as it is not 100 degrees and stuck in traffic, which I don't drive it under those conditions.



Whenever I've been in houston it was always 100 degrees and I was always stuck in traffic, even when I lived there as a kid.


I think if it was a good idea then many manufacturers would be running them, I don't remember seeing them on anything built outside of europe and those are pure garbage.


I am not causing global warming, I am just trying to hold off a impending Ice Age!



Re: electric water pump on magnum motor - belt routing [Re: TheOtherDodge] #3152366
06/17/23 06:20 PM
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I did but I don't have powerstering or A/C.


3520 pound race ready 1973 Street/Strip Dodge Dart - Stock stroke 440/727 10.49 @ 125.0 on 93 pump gas & ET Street Radials. More to come... ( SGT Miller) Proudly served 12 years in the US ARMY RESERVES support our troops
Re: electric water pump on magnum motor - belt routing [Re: TheOtherDodge] #3152404
06/17/23 09:46 PM
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Magnum WPs are reverse rotation. That might limit the market considerably

Re: electric water pump on magnum motor - belt routing [Re: A990] #3152448
06/18/23 07:31 AM
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I don't think they make one for the magnum just the LA. And how would you route the serpentine belt/fan?

Re: electric water pump on magnum motor - belt routing [Re: Moparite] #3152457
06/18/23 08:53 AM
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The pully systems between the LA motor and the Magnum motor interchange. If you want to use an electric water pump, why not just convert back to the LA pulley system for the accessory drives?

The differences between the "forward rotating water pump and the reverse rotating water pump" is the direction the vanes are angled on the impeller and that difference is simply done because the different pulley systems turned the pump impeller in the other direction. The cooling systems on the motors are both designed to flow the coolant through them in the same direction. The alternator, the power steering pump, and the AC compressor all turn in the same direction on both motors. When Mopar went to the serpentine belt system, changing the direction of the water pump rotation was the most simple way to make it work, and al they had to do then was change the angles of the vanes on the water pump impeller so the coolant would flow through the motor in the correct direction. Modifying just the water pump was the simplest and cheapest way to get the job done.

You guys tend to way over think this stuff.

For the record, there is no way I would exchange a belt driven water pump for an electric driven water pump on a street driven vehicle, but you do you, and I will do me.

Re: electric water pump on magnum motor - belt routing [Re: HotRodDave] #3170162
08/24/23 02:30 PM
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TheOtherDodge Offline OP
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Originally Posted by HotRodDave
Originally Posted by TheOtherDodge
Yup, that was what I found. The electric WP will be fine for the street as long as it is not 100 degrees and stuck in traffic, which I don't drive it under those conditions.



Whenever I've been in houston it was always 100 degrees and I was always stuck in traffic, even when I lived there as a kid.


I think if it was a good idea then many manufacturers would be running them, I don't remember seeing them on anything built outside of europe and those are pure garbage.



My wife's GLE580 uses electric WP and electric AC, matter of fact, electric everything with no belts. Make the "stop" portion of the "start/stop" feature very nice. It has the bi turbo 4.0 integrated with a 48-volt motor-generator that gives it an extra 21 hp and 184 tq. Hardly "pure garbage".

Re: electric water pump on magnum motor - belt routing [Re: TheOtherDodge] #3170335
08/25/23 11:33 AM
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Going from my memory I don't recall anyone back in the day running an electric setup on a 5.9 Magnum. Worse case you could ask on a Dakota RT group or search on www.dakotart.com if that website is compatible with your browser.

Re: electric water pump on magnum motor - belt routing [Re: TheOtherDodge] #3170386
08/25/23 01:55 PM
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Originally Posted by TheOtherDodge
Has anyone used an electric water pump on a magnum set up that has retained all the accessories? If so, how was it done, extra idler, belt routing, etc? Thanks! wave


Why.

Re: electric water pump on magnum motor - belt routing [Re: NITROUSN] #3171273
08/29/23 09:43 AM
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The "Why" is so I can circulate water through the block with my electric fan running to cool the motor down to 150 degrees in about a minute (with the engine off).

Re: electric water pump on magnum motor - belt routing [Re: OrangeProwler] #3171276
08/29/23 09:44 AM
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Originally Posted by OrangeProwler
Going from my memory I don't recall anyone back in the day running an electric setup on a 5.9 Magnum. Worse case you could ask on a Dakota RT group or search on www.dakotart.com if that website is compatible with your browser.


I haven't seen anything on those boards as I am members of a few. Most of those are pretty "dead" now.

Re: electric water pump on magnum motor - belt routing [Re: TheOtherDodge] #3171282
08/29/23 10:01 AM
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Originally Posted by TheOtherDodge
The "Why" is so I can circulate water through the block with my electric fan running to cool the motor down to 150 degrees in about a minute (with the engine off).


Is this a race motor? If not to me its a waste of time and money. Good luck on your quest as you most likely are the only one.

Re: electric water pump on magnum motor - belt routing [Re: TheOtherDodge] #3171317
08/29/23 11:55 AM
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It looks like you can simply not route the belt to the water pump. The water pump in the image is just above the crank pulley in the image. What length belt that would be... shruggy

Belt Routing.jpg
Re: electric water pump on magnum motor - belt routing [Re: Fat_Mike] #3171319
08/29/23 12:05 PM
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Originally Posted by Fat_Mike
It looks like you can simply not route the belt to the water pump. The water pump in the image is just above the crank pulley in the image. What length belt that would be... shruggy



It would be spinning the wrong direction.

Re: electric water pump on magnum motor - belt routing [Re: NITROUSN] #3171327
08/29/23 12:29 PM
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Originally Posted by NITROUSN
Originally Posted by Fat_Mike
It looks like you can simply not route the belt to the water pump. The water pump in the image is just above the crank pulley in the image. What length belt that would be... shruggy



It would be spinning the wrong direction.


What would spin in the wrong direction? The water pump would be electric. Am I missing something?

Re: electric water pump on magnum motor - belt routing [Re: Fat_Mike] #3171356
08/29/23 01:59 PM
08/29/23 01:59 PM
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The electric water pump would be for the reverse flow the Magnum uses (vs LA) so that is not an issue. Yes, they do make them specific. My only concern would be that the long routing without any pully/tensioner and throwing the belt at higher RPM's.

No, not a race motor but I do take it to the track a lot.

Re: electric water pump on magnum motor - belt routing [Re: Fat_Mike] #3171358
08/29/23 02:03 PM
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Originally Posted by Fat_Mike
Originally Posted by NITROUSN
Originally Posted by Fat_Mike
It looks like you can simply not route the belt to the water pump. The water pump in the image is just above the crank pulley in the image. What length belt that would be... shruggy



It would be spinning the wrong direction.


What would spin in the wrong direction? The water pump would be electric. Am I missing something?


I mis read what you said. You are right on the routing and finding a shorter belt. Here is a magnum electric pump he could use. Pump

Last edited by NITROUSN; 08/29/23 02:04 PM.
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