worth while to go electric w/p

I have an electric water pump on my '05 GT and it has about 14K miles on it with no problems. It saves me 17+ HP according to the manufacturer and I belive it.

It is also very efficient, my temp gauge never ever goes above 1/2 way, even in heavy city traffic in the hot summer.

I am only driving the alternator on mine now. I have a Moroso electric drive that I bought used. I picked up an extra motor to keep in the trunk "in case." It would take all of 5 minutes to change over. Anyways, with an aluminum underdrive crank pulley only driving my new 3G alternator, it does rev a lot quicker. No more smog, A/C, PS, or water pump. The only thing is, if you go electric fan and pump especially with underdrive, you will definitely need a larger alternator. I have no stereo equipment at all and when the fan was on low speed and the water pump was on, it was barely breaking even. The high speed hasn't come on yet (set at 190) but if it did with the old alternator, it was going to be game over. The electric water pump is very nice, especially at lower speeds this thing never comes close to overheating.

Forgive me being a newbie to the 5.0 world, but what all would I need to go with an electric water pump? I just got rid of P/S and am taking off my smog pump soon (by the way, what size belt are you all running for just alternator/crank/water pump? THANKS! ), so I'd love to get rid of ever-more parasitic drag from the engine. Thanks in advance! Cheers- Mark W.

Mark,
There are 2 ways to go e-
One is rather expensive, as it involves completely replacing the factory mechanical pump with a new e- pump.

The other way is much less expensive, as all that is needed is a small electric motor to drive the factory mechanical pump via a pulley/belt.

summit stocks both styles of e- wp.

thaduke2003 said:

Forgive me being a newbie to the 5.0 world, but what all would I need to go with an electric water pump? I just got rid of P/S and am taking off my smog pump soon (by the way, what size belt are you all running for just alternator/crank/water pump? THANKS! ), so I'd love to get rid of ever-more parasitic drag from the engine. Thanks in advance! Cheers- Mark W.

Click to expand...

As far as what you need to do, it's not hard. I pulled the A/C and PS and mounted the Moroso electric drive on the driver's side. That dropped quite a bit of weight between the pumps, brackets, etc... The electric drive hardly weighs anything. I am running a 29 1/2" belt to drive just the alternator with an underdrive crank pulley by using and modifying the old smog/alternator bracket. I might try and run shorter due to clearance issues on the passenger side due to clearance issues but it is getting hard to find 6 rib belts that short. You will have to do a low mount for the alternator to keep the belt from hitting the water pump pulley and remove the charcoal canister, the alternator wil hit it. I messed around for 2 days trying several different mehtods to try and mount it with the parts I had, no expenesive kits. I can send you pics if you want to do it. It finally worked but I'm going to purchase an adjusting rod and probably paint or powdercoat the bracket.