The best location for an electric water pump SBC V8 conversion, The best location for an electric water pump SBC V8 conversion |
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The best location for an electric water pump SBC V8 conversion, The best location for an electric water pump SBC V8 conversion |
BRAVE_HELIOS |
Apr 22 2017, 10:06 AM
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#1
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"Knowledge speaks, wisdom listens" Group: Members Posts: 295 Joined: 25-September 06 From: The Land Of ID! Member No.: 6,920 Region Association: Pacific Northwest |
Hey all,
Inching closer to going electric on my V8 conversion car. Right now; going through the process of cleaning out radiator and water passages/block with ThermoCure, then Prestone citric acid flush. Assuming I get a really clean system but not fix the run hot situation; I will go electric. Where is the best place to mount the electric pump? It would seem that the easiest way to go in my case is with this: http://www.jegs.com/i/JEGS-Performance-Pro.../50930/10002/-1 It a 50 GPM unit that should bolt right up to the Renegade remote water pump housing already in place in my car on the lower left hand side of the engine... that is assuming there is enough clearance between the water pump and the firewall. Would this work? I have heard stories going back and forth about mounting the pump by the radiator or by the engine. |
BIGKAT_83 |
Apr 22 2017, 05:47 PM
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#2
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Senior Member Group: Members Posts: 1,798 Joined: 25-January 03 From: Way down south Bogart,GA Member No.: 194 Region Association: South East States |
I hope you have the hose from the header tank going to bottom of the recovery tank. I cant see it in your pictures. If its going to the top as it looks like there is no way for the water to get sucked back into the system.
I have a Meziere 316 55gpm remote pump I could send you to try. I would be a little harder to plump up but might save you from buying something you don't need. |
BRAVE_HELIOS |
Apr 22 2017, 06:10 PM
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#3
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"Knowledge speaks, wisdom listens" Group: Members Posts: 295 Joined: 25-September 06 From: The Land Of ID! Member No.: 6,920 Region Association: Pacific Northwest |
I hope you have the hose from the header tank going to bottom of the recovery tank. I cant see it in your pictures. If its going to the top as it looks like there is no way for the water to get sucked back into the system. I have a Meziere 316 55gpm remote pump I could send you to try. I would be a little harder to plump up but might save you from buying something you don't need. Thanks... I may take you up on the offer. I am so afraid that I will spend the money on an electric unit just to find out it is some other issue. That's why I am now cleaning out the system the best I can (without removing the engine) to see if this makes a difference. I just have had no luck with making this car remain running at a decent temp (like 180-200). I also now know to elevate the front of the car so the petcock located on the top right of the radiator can be used to bleed the system. I use a slightly modified vacuum brake fluid bleeder like this one and it works really well in helping me bleed the system. As for the Passat header tank (I call expansion/ tank) overflow line, it does connect to the bottom of the recovery (I call overflow) tank. The recovery tank overflow line used to vent to the ground but I now have it going into another smaller bottle located at a lower point in the engine bay by the trunk bulkhead. There may be some sort of blockage there causing the header tank to build pressure. I will check it out. |
BRAVE_HELIOS |
Apr 22 2017, 06:23 PM
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#4
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"Knowledge speaks, wisdom listens" Group: Members Posts: 295 Joined: 25-September 06 From: The Land Of ID! Member No.: 6,920 Region Association: Pacific Northwest |
I hope you have the hose from the header tank going to bottom of the recovery tank. I cant see it in your pictures. If its going to the top as it looks like there is no way for the water to get sucked back into the system. I have a Meziere 316 55gpm remote pump I could send you to try. I would be a little harder to plump up but might save you from buying something you don't need. Thanks... I may take you up on the offer. I am so afraid that I will spend the money on an electric unit just to find out it is some other issue. That's why I am now cleaning out the system the best I can (without removing the engine) to see if this makes a difference. I just have had no luck with making this car remain running at a decent temp (like 180-200). I also now know to elevate the front of the car so the petcock located on the top right of the radiator can be used to bleed the system. I use a slightly modified vacuum brake fluid bleeder like this one and it works really well in helping me bleed the system. As for the Passat header tank (I call expansion/ tank) overflow line, it does connect to the bottom of the recovery (I call overflow) tank. The recovery tank overflow line used to vent to the ground but I now have it going into another smaller bottle located at a lower point in the engine bay by the trunk bulkhead. There may be some sort of blockage there causing the header tank to build pressure. I will check it out. I may have neglected to mention something because I just installed it and am waiting for the results. In the Bible V8 Conversion Book; there is one small paragraph that mentions KEP recommending the use of a restrictor washer located at the inlet of the radiator. I installed one with a 3/4 inch diameter (the inlet size of the rad is 1.5 inch). Also the T-stat has been gutted so no restriction there. I have pretty much tried every iteration I can think of... T-stat in, T-stat out, restrictor washer out, restrictor washer in, expansion tank out, expansion tank in. The only thing I have not tried is the electric water pump. What I do not understand is if the mechanical pumps are not efficient enough to work in this application (V8 914) then why offer them? |
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