electric water pump drive

[beingblueeyes]

Ok just throwing this idea out there “electric water pump drive” I see the kits advertised in jegs for around 100 and then I see reg electric water pumps for ls1’s for around 450-500. Has anyone ever fab’d up one to a lsx motor? After looking at the drive belt set up on my 5.3 it looks like alls it would take to run a electric water pump drive kit is a new location for the belt tensioner to keep the belt off the water pump. That would result in a much much shorter belt set up and the removal on the dead pulley on the pass side of the motor allowing you to mount any intake manifold you wanted to mount. Then you would have to remove the water pump pulley (after this it become all speculation and theory) install the new slotted pulley and make a mounting bracket for the E motor.

After looking around on line for gains with electric water pumps I found this
http://www.superchevy.com/technical/...mp/index1.html

In there testing they gained a max of 6hp and a avg of 3 and the same with tq. I’m not sure if this would be more or less with a lsx motor because testing was preformed on a sbc gen 1. Any thoughts about this?

**here they say 10-12 hp on lsx motor
http://www.lgmotorsports.com/catalog...oducts_id=1590

[IXLR8]

I haven't really kept up with them (they might be better now), but in the past the electric water pump drives that use an electric motor and a belt to drive your stock water pump (probably from Moroso) didn't really work well on the street. They were intended to be used at the drag strip to cool race cars down between passes with the motor shut off.

[PitchBlackC3]

Plenty of other things you could spend that money on and get more return.

[oleshifty]

like i've said in the past.... electric water pumps just aren't a great idea for daily drivers. They only have like a 500 hour life span, and are pricey.

An UD kit frees up about the same amount of hp, and costs half as much. Plus you get the dependability of a normal water pump. If it is a track car only, sure free up the couple horses, but on a daily, you'd prolly get the same amount of track time increase by removing a spare tire/ passenger seat.

[George C]

where do you get your facts? the Meizere water pump i have is rated at 3000 hours, do the math on how many miles/years that exactly is. You gain alot from a EWP not just power, a true daily i wouldnt use one but a toy yes. a True daily i wouldnt crack open the motor but thats another story. Now you state you dont gain much, you need to look at what a EWP really does as for drag on the motor.

as stated for close to 700 for a street EWP its not in everyone's budget, when i got mine it wasnt no were near as much as it is today. My setup stays nice an cool

like i've said in the past.... electric water pumps just aren't a great idea for daily drivers. They only have like a 500 hour life span, and are pricey.

An UD kit frees up about the same amount of hp, and costs half as much. Plus you get the dependability of a normal water pump. If it is a track car only, sure free up the couple horses, but on a daily, you'd prolly get the same amount of track time increase by removing a spare tire/ passenger seat.

[oleshifty]

what do ALL accessories use? (minus AC) maybe 20-25 hp? I'm sorry, but for the 700 bucks, you can make a lot more power somewhere else. Not to mention the electrical draw of a EWP makes the alternator work harder, which robs some of that power you're freeing up.

I realize there is the cooling aspect as well, but not something some good electric fans/ different thermostat could also do.

[RedHeartbeat]

surely the electric water pump frees up HP by removing the EWP from the equation but electricity isn't free and the alternator has to make it. how much HP does the alternator draw to create the electricity to turn the EWP?

[George C]

10 amp fuse required efans draw more

surely the electric water pump frees up HP by removing the EWP from the equation but electricity isn't free and the alternator has to make it. how much HP does the alternator draw to create the electricity to turn the EWP?

[beingblueeyes]

This is exactly the kind of discussion I was hoping to start. I don’t agree with spending over 400 on a electric Water pump because its not very practical but what I would spend around 250$ for a lsx electric water pump that flowed 40-45 gph and I’m sure I’m not alone in that. I have some ideas on how to accomplish this but I need a old water pump to try it on

[IXLR8]

This is exactly the kind of discussion I was hoping to start. I don’t agree with spending over 400 on a electric Water pump because its not very practical but what I would spend around 250$ for a lsx electric water pump that flowed 40-45 gph and I’m sure I’m not alone in that. I have some ideas on how to accomplish this but I need a old water pump to try it on

But....you aren't the first one to attack the problem. It started with an electric motor driving a belt that spun the stock water pump. Lot's of these were sold by Moroso and were used at the dragstrip on race cars to cool them down in the pits while the engine was shut off. You can still buy them. But the electric motor couldn't spin a stock water pump fast enough to keep up on the street.

Over the years the electric water pump has evolved into what is available today. The stock water pump was replaced by a purpose built pump designed to be driven by a electric motor all in one piece. Yes, they're expensive, but they're light years ahead of the old electric motor driving a belt driving a stock water pump.

I still have a car with a cement truck electric water pump on it (the pump they use to wash the truck down with when they finish pouring cement). It's the same pump they use on house boats to pump water to the kitchen and bathrooms. It works better than the old belt driven electric setup sold by Moroso, but not as good as what you can buy today. The car hasn't been started in years, but if I get interested in it again and the cement truck water pump ever quits or I decide to do some major work on the car, I'll be moving on up to one of the new high dollar pumps.

In the end you get what you pay for. You wanna play you gotta pay.