Electric Water pump?

[EspanolaGuitarista]

I a considering this for my 302....

If an electric water pump makes 10 more horsepower on the dynometer over a stock unit then f*ck the electronic theory. You cannot refute proof! Water is 8 lbs a gallon. Moving 40 gpm that's 320 lbs of water. Depending on the design that can be more than 15 horsepower. The best way is to retrofit an aftermarket pump along with the electric motor, that makes the most of your gains. My two cents once again.

[bszopi]

RE: I a considering this for my 302....

In my search for the rating of one of these pumps... Here is the Patent for the CSR pump:

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=/netahtml/search-bool.html&r=1&f=G&l=50&co1=AND&d=ptxt&s1=6,491,494&OS=6,491,494&RS=6,491,494

Should be some good reading...

[Juglenaut]

Having a degree in electronics technology I would side with betterthanyou.

Wether it be the Hokey one or the real nice looking one both will release some HP at the crank.

By the way the one Betterthanyou showed is a direct driven diaphram pump I believe which is better in that respect, like no belts or pullys causing friction and stuff.

I really could go into detail about rectified power supplies if you want.

[bszopi]

I am paperwork away from having a degree in Electronics Technology and I'm an electrical systems designer. And I don't side with him 100%. Mainly because the the motor is not a 1hp unit. I can guarantee that. Try to find a 1hp 12v motor and tell me how big it is...

[Guest]

I am paperwork away from having a degree in Electronics Technology and I'm an electrical systems designer. And I don't side with him 100%. Mainly because the the motor is not a 1hp unit. I can guarantee that. Try to find a 1hp 12v motor and tell me how big it is...

Exactly.

We also haven't even started taking into account shorter belt length, you'd be surprised how much power can be gained from using a shorter belt, friction losses through belt contact with the pump pulley and finally the pulley weight itself....

[Doubt_Incarnate]

heck, just look at how big it is if it isnt 12v.

either method would be ok, but how is this any diferent than putting in one of those electric turbos? both are electric motors, and both pump. one pumps air, wich is easier than water, which is cooler than water. both put a strain on the charging system. for a daily driver, i'd have to stick with the good old reliable stock setup. if the belt breaks, your gonna know right away, wereas if the pump or motor fails, its not gonna show so fast and your gonna keep on trucking and maybe burn up the engine. just under drive it lighten the stock pulley or something.

[Juglenaut]

Try to find a 1hp 12v motor and tell me how big it is...

I could find one that is rather small. It may not be 1hp direct driven, be can be geared to deliver it.

I really don't think I'd feel a dramatic difference if I put one of those on my car. HP helps, but torque matters. Does this gain torque??

[XLR8ING]

Thanks for this post guys. Electric w/p is going into my car before it comes out of the garage again.
Biggest reason though is because the power steering is coming out as well, and it's hard to run the w/p without the p/s pump.

Does anyone have any objections to running an electric w/p on the street?

[bszopi]

Try to find a 1hp 12v motor and tell me how big it is...

I could find one that is rather small. It may not be 1hp direct driven, be can be geared to deliver it.

Gear it to make 1hp and then you loose all the speed that you'd want to push water through the engine. The smallest 1hp 12v motor I can find (with just some quick looking) is still 11" long.

[Juglenaut]

Well if you want to deliver 740ish watts from a motor goto aveox to see if it is possible at 14ish volts. You may actually have to contact them.

This explains loaded value on an alt.

http://www.crutchfieldadvisor.com/ISEO-rgbtcspd/reviews/20030729/current_affairs.html?print=1&page=all

So yes any accessory will drag on the alt to a point then draw off both the battery and the alt.

Sizing a stereo, or any additinal equipment to a car a person must add up every one of the accessories' current draw even if it not used all the time like headlights and such, even the engine uses current.

On a typical engine serpentine system there is a main fulcrum the crank pullys radius (about 5-6inches), and several other ratios to play with. Now since the alts pully is small the fulcrum is about 1.5 inches so a ratio is about 4:1, 4 revolutions of the alt to 1 revolution of the crank. There is 2 fulcrums a larger one driving a smaller one, so drag is proportionally reduced so 800 watt or about (14 volts) 57amps is divided by 4 which is about 14.25 amps of drag at the alt or 199.5 watts. This would explain why an increase is noticed using electric water pumps over a mechanical one for the fact that the water pump has a tighter ratio close to 2:1 or less, where as driving a 10amp load is delivered to the crank by a different set of fulcrums.

Also, alts need lots of rpm so a crank moving at 600rpm the alt should be close to 2400rpm at idle, and when choosing an alt the idle rpm power is important.

[Guest]

heck, just look at how big it is if it isnt 12v.

either method would be ok, but how is this any diferent than putting in one of those electric turbos? both are electric motors, and both pump. one pumps air, wich is easier than water, which is cooler than water. both put a strain on the charging system. for a daily driver, i'd have to stick with the good old reliable stock setup. if the belt breaks, your gonna know right away, wereas if the pump or motor fails, its not gonna show so fast and your gonna keep on trucking and maybe burn up the engine. just under drive it lighten the stock pulley or something.

There is a HUGE difference between an electric water pump and an "e-turbo".

The electric water pump is used for flow, not pressure.

an "e-turbo" is "used" for creating pressure, which is a lot harder thing to do, especially with air.

Air will compress a lot more than water will, so it takes a lot more power to compress air than move water.

[geoffinbc]

WTF? Whats this "flow" "pressure" bullshit. Does anyone here understand how pumps work?

PUMPS DO NOT MAKE PRESSURE. They only make flow. Pressure is produced when there is a resistance to flow. Got it GOOD.

Ok look at an electric supercharger vs mechanical.

What does it take for a supercharger to provide boost? Like 15-20 horsepower on a smaller engine like ours right?

Now heres the problem with an electric supercharger. WHERE THE FUCK is an electric motor going to get this kind of power to make any boost? Maybe if you install a generator on the engine then you can run an electric supercharger.

But now you whole theory is out the door because why the hell would you want to run a generator to make power for en electric motor to turn a supercharger when you can just turn a supercharger with a belt?

Why is this so difficult to comprehend? What is everyone fascination with using electric motors?

[StudlyCamaro]

Does anyone have any objections to running an electric w/p on the street?

i know lots of guys running electric water pumps on daily driven street cars, you should be fine

[Guest]

WTF? Whats this "flow" "pressure" bullshit. Does anyone here understand how pumps work?

PUMPS DO NOT MAKE PRESSURE. They only make flow. Pressure is produced when there is a resistance to flow. Got it GOOD.

Ok look at an electric supercharger vs mechanical.

What does it take for a supercharger to provide boost? Like 15-20 horsepower on a smaller engine like ours right?

Now heres the problem with an electric supercharger. WHERE THE FUCK is an electric motor going to get this kind of power to make any boost? Maybe if you install a generator on the engine then you can run an electric supercharger.

But now you whole theory is out the door because why the hell would you want to run a generator to make power for en electric motor to turn a supercharger when you can just turn a supercharger with a belt?

Why is this so difficult to comprehend? What is everyone fascination with using electric motors?

Yes, pumps, create flow and that resistance to flow creates pressure, which is basically what I said, dipshit, god, you seem to have a hard time comprehending what other people are saying, even when they agree with what you say.

Why not just let us, that know what we are doing with electric motors and other forms of energy, get more power out of our machines, while you sit there and whine that no one is listening to you, we hear you, we just know better.

I would use a belt drive directly from the crank for a supercharger, because it needs the torque that teh engine can provide that an electric motor can't as efficiantly to provide boost, or rather create enough flow to back up in teh intake tract to create pressure, but then again, I'll go turbo so that I am using otherwise wasted energy to create boost and get even more power.......

[RednBlack]

I agree that an electric water pump may help. On the track. You can run it to cool your engine after shutdown. (This also means you have to remove your thermostat.)

I would never use one on the street. I like stock setups, because, on any given Sunday, I can buy a serpentine belt for my car. Of course, I drive a lot of long distance. Also, on my car, I need no extra load on an already hard to reach alternator.

This is a no win, no lose arguement. Doing what is right for the way you drive is what is right. It is your car. Just my opinion.