6HP from a HESCO High flow water pump

I took of my '03 water pump over the weekend. The heater hose tube was loose, so I had to take it off to tighten it. It had a plastic impeller simular to the Hesco's. I placed the water pump on a '95 block I have. The '03 had an extra bolt, and another bolt was in a different location. I also have an '00 block. So I took the water pump off of it. It had a standard impeller. It did fit the '95 block. I don't know when they started to use the 'improved' impeller or water pump. As a thought, you could cross refference water pump gaskets and see if there is a change in them, and see if there is a change in water pumps.
Tom
 
75SV1 said:
I took of my '03 water pump over the weekend. The heater hose tube was loose, so I had to take it off to tighten it. It had a plastic impeller simular to the Hesco's. I placed the water pump on a '95 block I have. The '03 had an extra bolt, and another bolt was in a different location. I also have an '00 block. So I took the water pump off of it. It had a standard impeller. It did fit the '95 block. I don't know when they started to use the 'improved' impeller or water pump. As a thought, you could cross refference water pump gaskets and see if there is a change in them, and see if there is a change in water pumps.
Tom
Click to expand...




Yeah, thanks for the input. I went to autismzone yesterday and the part number for the 94' water pump was the same as for the 2000. It was an aftermarket one, but it was the earlier design. I'm going to go check at the dealer soon, I guess I'll have to to go to the stealership to pick up a new design pump..... :rattle:
 
Well i just ordered the hi flow pump and t-housing from hesco and im running hot alot!!! I also ordered those cool flex radiator hoses and bought a 160 degree thermostat and will hook up an override elec fan switch to top it all off.

Im just looking in a good 30 degree drop in running temp or any for that matter. I'll let u guys know how it all works out when installed.
 
BIG-G said:
Well i just ordered the hi flow pump and t-housing from hesco and im running hot alot!!! I also ordered those cool flex radiator hoses and bought a 160 degree thermostat and will hook up an override elec fan switch to top it all off.

Im just looking in a good 30 degree drop in running temp or any for that matter. I'll let u guys know how it all works out when installed.
Click to expand...

Are you sure that flow is isn't impeded elsewhere down the system? If there's a bottle-neck anywhere, the new pump, etc. won't do you much goood. A pump that flows a little more than stock isn't going to be the cure for an overheating problem. I'd be more concerned about the radiator, unless you've already checked that.
 
XJZ said:
Are you sure that flow is isn't impeded elsewhere down the system? If there's a bottle-neck anywhere, the new pump, etc. won't do you much goood. A pump that flows a little more than stock isn't going to be the cure for an overheating problem. I'd be more concerned about the radiator, unless you've already checked that.
Click to expand...

I figured id just upgrade everything. If that all doesnt do much, i believe summit has a nicely expensive race design aluminum radiator that i'll get.
 
so whats the final verdect on the water pump??? I cant decide if I should buy one or not... Is it worth the $100 extra comparted to a stock style pump... Really I want it for the gains, added cooling and faster engine reving..

Whats the diff. between the flowkoolers and this hesco unit??

Thanks
Chris
 
JJacobs said:
So go buy one then! What does this have to do with water pumps?
Click to expand...
The dude was from Saudi Arabia! Give him a little slack for at least knowing a little English.
 
Scary.. I got a Flow Kooler. YEt I have come to find that these style of pumps mixed with a high flow thermo housing and stat casues water to flow to fast. I am currently running a CSF 3 core and the temp going in the radiator compared to the temp going out was only dropping about 15*. I added a restriction in the upper hose (dime hole washer) and now am getting about 30* difference. A friend of mine allowed me to compare my numbers aginst his 4.0 and he has about 50* difference.
 
I wonder if the restriction would be more effective if you placed it in the lower radiator hose? It would keep the coolant inside the radiator for longer by slowing down the rate of flow out of it.
 
A high flow pump can have a negative effect on cooling. If the water is flowing too fast through the radiator it won't transfer heat efficiently. I haven't tried Hesco's pump but I had that experience with a flowkooler, so it might be different with theirs. Or perhaps it was just the combo that I had that didn't play well with a high flow. Also, inserting a restriction in the return will allow greater pressure in the engine block which would help prevent localized boiling/hot spots.
 
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