Electric Water Pump

[cudabob496]

Summit has an electric water pump that bolts to my water pump housing, costs $179, draws 6 amps, and pumps 37 gpm, so they say. Think this will work on my big block Cuda?

[Chryco Psycho]

yes but for how long , if the electric motor quit you are stranded , , at least with a belt driven pump it isaesy to replace the belt or pump 

[cudabob496]

Yah, I would definitely have an indicator light showing current flow to the pump motor, so I would not be driving down the road without flow through the engine. Seems an electric pump would also be better in stop and go traffic, because even at idel you'd be getting max cooling flow.

[nivvy]

I bought mezieres bolt to housing one got a great deal locally here they are 260 from summit my guy here gave it to me for 230 & no handling fee summit charges ya either!!!.... 45 gpm also... Not my car in the pic...I figured I waste a few more bucks to have a reputable name...ProForm makes one as well that flows like 30-35 gpm...

I think they are a great way to free up appx. 15- 20HP ....

[dodge freak 2]

yes but for how long , if the electric motor quit you are stranded , , at least with a belt driven pump it isaesy to replace the belt or pump 

Thats what I always believed too but I seen on speedtalk members saying those pumps have came a long ways and they work now for a long time. I don't know but things keep changing. Sure one day they be as good as the old types if not better. They can run for a min. after the motor is shut off too.

[nivvy]

Its not like im gonna put 12,000 miles on my car a year either.... 

[nivvy]

yes but for how long , if the electric motor quit you are stranded , , at least with a belt driven pump it isaesy to replace the belt or pump 

Stranded is Stranded no matter what pump goes bad.............mechanical or electrical...........

[cudabob496]

By the way, I was talking to the Mancini guys, and they said putting one of these on your engine only freed up 3 to 7 hp. I was hoping it would be more. But, I need a winter project. I need to be tweeking on the Cuda in the garage!

[nivvy]

I have heard different HP's also??? Either way its more  I would imagine every single engine will vary!!!

this guy at the track ran a 14.0 in his mustang and then took off every single belt and ran a 13.1 weird.... maybe someone could calculate how much hp he gained???  like 50 total...

[cudabob496]

I have heard different HP's also??? Either way its more  I would imagine every single engine will vary!!!

this guy at the track ran a 14.0 in his mustang and then took off every single belt and ran a 13.1 weird.... maybe someone could calculate how much hp he gained???  like 50 total...

They say a tenth in the quarter is a result of 10 hp for the standard race car, so if he picked up 9 tenths, that would be a 90 hp increase from loosing the belts. Doubt it. Loosing all belts might give you 20 hp in my opinion.

[dodge freak 2]

In the older cars it was 15 hp for every .1 but yeah these new cars don't have as much drag so maybe 10 hp it is now.

I still don't believe it either, with those Stang's-and many other cars-its hard to hook up from a dead stop because the back end is so light. 20 mph to 70 mph gives a better feel for checking if the motor has more power since wheel spin is less.

Back to the water pumps, if your are running a electric fan-which it some places you can-I haven't even used mine here in Michigan since Nov.--the water pumps seem to last forever. And when they do start to go, they either start leaking a little or start making a funny noise, they  do not just die out on you like a electric pump might.

That 5-10hp might well be right and thats at high rpms, IDK, you might notice a diff. you might not, guess a electric pump can't hurt unless it breaks down on you, then its tow truck time.

[nivvy]

I put the numbers in my engine dyno and it came up with 60HP to drop from 14.0 to 13.1 in a 3200lb mustang..... ???Sounds possible... 

Anyway I'll find out how much it helped me come summer

[cudabob496]

Yah, I think 10 hp per tenth in the quarter is a good number for estimating, since there can by so many variables.

[73EStroker]

Guys/Gals - remember that the statement "frees up HP" on electric changeovers only applies if you have a fully charged battery and are sitting at the Xmas tree lights for the 1/4 mile run. If you are driving a long distance the water pump will drain the battery and the alternator will kick in and drain HP from the motor to charge the battery. The laws of physics always say "there is no free ride"

My point here is don't waste your hard earned money if you are not into the serious 1/4 mile thing.

[cudabob496]

Guys/Gals - remember that the statement "frees up HP" on electric changeovers only applies if you have a fully charged battery and are sitting at the Xmas tree lights for the 1/4 mile run. If you are driving a long distance the water pump will drain the battery and the alternator will kick in and drain HP from the motor to charge the battery. The laws of physics always say "there is no free ride"

My point here is don't waste your hard earned money if you are not into the serious 1/4 mile thing.

I must respectfully disagree. Based on the laws of physics, it would take a 57 amps load on the alternator to equal a one horsepower load on a motor, so an electrical component can free up horsepower that would otherwise be lost do to mechanical processes that involve a lot of friction. Your explanation could be said of headlights as well. Your tooling down the road, and you turn on your headlights, which draw, say 10 amps, and your alternator will supply the 10 amps at a cost of only about two tenths (.2) of a horsepower.  An electric water pump will draw approximatley the same load as headlights, but not cause all the friction associated with a large pulley and belts.