electric water pump

[jaspermaggie]

Can I use an electric water pump on the street? 35 or 55 on sbc? I am looking for more low speed cooling on the street in texas. How did you mount your alt, pic please if you can
Thank's alot

[waterdog]

I just switched to an electric pump and fan, can't tell you how well it cools on the street, but it's been great at the track. I used the March products alt. kit for electric pumps, man that is one slick set-up. Walt

[565bbc]

This is my big block but it might help give you some ideas. I apologize about the huge pic but this is the way I had to rig up my alternator (which I changed to a GM 12si now) when I installed the dedenbear pump. It's a jegs brand alternator mounting bracket that I modified to fit with my home made front motor plates and sbc moroso underdrive pulley that I machined to fit the big block. LOL! It was tedious work but I'm pretty happy with the way it came out.

[572 BBC]

powerhouse sells alternator relocating brackets to go on left or right side(same kit,just reverse side)goes right on the side of harmonic balancer,i love mine but had to give like 80 bucks


also go with the biggest pump and slow it down with a thermostat that has been gutted out

[pawnman69z]

here is a picture of my big block with an elect pump and a low mount setup for the alternator

[HAULIN' IT]

I run mine on the street alot, did Hot Rod Drag Week with no problems, sit in cruise lanes, ect. however I'm in Pa not Tx. My temp went down slightly after the install of the pump & dual electric fans compared to my factory clutch fan & shroud. I don't run a stat, resistor, ect. temps never go above about 170*. I do have a big grille opening (full size '80's GM truck), a big radiator & a dual fan set-up out of a 90's Deville. Hope this helps, Lorne

[wikd69]

here is a picture of my big block with an elect pump and a low mount setup for the alternator

wow, thats a lot of moving parts

[jaspermaggie]

looks like I need a new motor. I guess I will have to get one and see if it will work. I cant mount my alt to low. Should I get a 37 or 55 gpm?

[572 BBC]

im voting again for the bigger. the faster(velocity if u will)the better to cool then slow it down with a restrictor.,read my above thread

[BillySS]

Here is mine with a March set up. I haven't had a problem yet,but my car is driven 700-1000 miles a year.

[supernova]

im voting again for the bigger. the faster(velocity if u will)the better to cool then slow it down with a restrictor.,read my above thread

I talked to CSR about which pump be best for street use, the 35-37 or 55?
They said the 55 will run the water through the radiator to fast to cool it even with a large radiator. The 35-37 is the one they suggest for street use.....

[ytnova]

I have been looking into this as well, but I am thinking of going the remote mount setup instead of a block mount so I have easy access to the cam/timing cover. My 2 cents on the 35 vs. the 55 is I would choose the larger. A larger pump would not only increase flow, but it would also raise the pressure in the block and heads, basically from the outlet of the pump to the thermostat/restictor plate housing, which would reduce the chance of steam pockets (hot spots)in the head around the combustion chamber, remember the more you raise the pressure, the more you raise the boiling point and steam doesn't transfer heat! You can use restrictors instead of a thermostat to control the flow and pressure inside of the engine and the rad cap would control the overall system pressure.