PDA

View Full Version : using a electirc water pump



**DONOTDELETE**
01-26-2003, 05:57 AM
is anyone on this forum using a electric water pump instead of a stock water pump? i was thinking of gutting my stock pump and using like a inline electric pump or however else they wire up. could anyone shed some light on this for me. i wanna switch out the stock one for a few reasons.

**DONOTDELETE**
01-26-2003, 06:11 PM
no one has ever thought about using a electric water pump? on v-8 they see up to a 20 rwhp difference by switching to a electric pump.

asad
01-26-2003, 08:03 PM
I've thought about it http://forums.freshalloy.com/ubbthreads/images/icons/smile.gif ...The problem, in my mind, is that electric water pumps for imports are mostly standalone pumps plumbed into one of the radiator hoses with a simple blockoff plate over the original water pump location. Once manufacturers start making direct-replacement electric water pumps, I think usage will go up.

Asad

LanceArmstrong
01-26-2003, 08:42 PM
What's wrong with a standalone pump plumbed into one of the radiator hoses?

Hugh
01-26-2003, 08:58 PM
It requires fabrication, and everybody in america wants the simple bolt-on kit. (at double the price) http://forums.freshalloy.com/ubbthreads/images/icons/grin.gif

**DONOTDELETE**
01-26-2003, 09:46 PM
hey asad what electric water pump can you buy that just plumbs into the radiator pipe? thats exactly what i am looking for. i am planning on just gutting out my stock pump to retain the factory timing belt assembly and running a standalone pump. thanks

Hugh
01-26-2003, 10:10 PM
Try google. I found these by searching for "Remote Electric Racing Water Pump"

http://www.helmetcity.com/dragracing/cooling.html

http://www.flatlanderracing.com/meziereimport.html (this site acts like the kit is simple, but its not)

http://www.thinkauto.com/waterpumps.htm (this site has a badass pump for pretty cheap.) You should click this link to get to their online shop: http://www.thinkauto.com/index.htm

**DONOTDELETE**
01-26-2003, 10:17 PM
whoa thanks for those links man. any idea on price for that thinkauto pump. thats exactly what i am looking for. i wanna order that tomorrow

Hugh
01-26-2003, 10:32 PM
click the second thinkauto link there, click on online store, then scroll almost all the way to the bottom where you see it on the list. The price is there when you click on it.

They are in England, prices are in pounds. Use some conversion to figure out the real price.

Here's the currency converter I use all the time:
http://www.xe.com/pca/

BrianS
01-26-2003, 11:08 PM
i agree with Asad, i would rather have a replacement for my stock water pump

simply because i would rather have the flow charistics and pressure differences designed into my engine block remain unchanged

its possible (albiet a little unlikely) that by pushing the water through at the radiator hose, instead of pulling it down by the water pump, or visa versa, some coolant passages could have the flow signifantly reduced

Hugh
01-26-2003, 11:22 PM
Not if you push 1300GPM!! Heh heh...

The pressure at that flow rate would have to break something.

d240t2
01-26-2003, 11:23 PM
I totally have thought about it...but really I wanted to do it in conjunction with removing the power steering...and get rid of that whole belt.

Then I thought...I'll get rid of A/C...then all I have to do is figure out a way to get rid of the alternator at the front and I'll be able to run without belts (and a crank pulley for that matter).

I want to build a starter/alternator that always stays engaged to the flywheel...then I can go no belts.

Dennis

Hugh
01-26-2003, 11:27 PM
That would be very cool.

**DONOTDELETE**
01-26-2003, 11:35 PM
yeah i have no ps no ac and want to ditch the water pump now. i will keep my alternator though thank you very much lol.

Hugh
01-26-2003, 11:47 PM
I have a friend who is using an electric water pump on his RX7, but its a pump that goes in some sort of ariplane. It's pretty damn big, but works very well.

iHATEstupidity
01-26-2003, 11:47 PM
you run the alternator off the driveshaft and attach it to the diff/subframe.

THINK

Hugh
01-26-2003, 11:56 PM
Run the alternator off the driveshaft?

How do you get power when you're sitting still? Run your battery dead?

carluch
01-27-2003, 12:32 AM
</font><blockquote><font class="small[/img]In reply to:</font><hr />
I'll be able to run without belts (and a crank pulley for that matter).


[/QUOTE] isnt the crank pulley also a harmonic dampener? wonder how the engine would run without it...

asad
01-27-2003, 12:43 AM
</font><blockquote><font class="small[/img]In reply to:</font><hr />
hey asad what electric water pump can you buy that just plumbs into the radiator pipe?

[/QUOTE]

Meziere makes one.

</font><blockquote><font class="small[/img]In reply to:</font><hr />
isnt the crank pulley also a harmonic dampener?

[/QUOTE]

Well, if the SR pulley is anything like the KA pulley, the only thing "dampening" about it is the rubber ring that attaches the AC belt pulley to the rest of the pulley -- used to absorb the kick that engaging the AC compressor clutch creates. If you have no AC...you don't need it.

Asad

iHATEstupidity
01-27-2003, 01:20 AM
someone who is willing to go to the length of relocating an alt off the engine will not be too concerned with extended periods of stationary idling. thus, driveshaft/diff-driven alts are generally used on drag race-only vehicles (much like electric water pumps). and depending on the battery used, and accesories run, a well-built electrical system can run a car at idle for a long time w/o needing a recharge from the alt.

THINK

Hugh
01-27-2003, 04:41 AM
OK, I suppose I assumed we all like to leave our car running for a few minutes without worrying about it dying.

d240t2
01-27-2003, 08:20 AM
Yeah...for stuff like turbo timing, or warming the car up when it is cold.

I like my starter/alternator combo idea. Too bad I told everyone about it here...that one could have been my first patent.

Dennis

uiuc240
01-27-2003, 10:44 AM
you'd need to figure out a way to incorporate worm gears or that starter/alternator would be really loud and annoying while driving. or a belt/chain.

Eric

d240t2
01-27-2003, 12:23 PM
Alternatively, I could just directly couple the alternator and what used to be the crank pulley...

Dennis

Kookz
01-27-2003, 12:50 PM
But then you're no better off than running it off a belt, with a whole lot less work.

LanceArmstrong
01-27-2003, 06:05 PM
Maybe you could use one of these http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&amp;item=2400877606&amp;category=67 55 or these http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&amp;item=2400980550&amp;category=26 449
The water pump probably spins at like what, 10k rpms or more at redline? Is it really pushing a lot of water? The tiny hole in the thermostat doesn't look like it's letting alot of water through.