SD Electric Fuel Pump Question

If I were to swap in the SD electric fuel pump, would I need both pumps or just one?

One for your setup.

When would I need 2?

Does it matter which SD pump I get?

With big injectors

Once nice thing about the Motorcraft pumps is they come with the mounting assembly short harness that I located a the maching plug for.

How big of injectors? Will 1 pump still work for stage 1's?

I am going to go get a SD pump off a wrecked truck this week and start collecting my parts for the conversion. I ordered the pre-filter and base and the post filter and base tonight from Fleet Filter. I also got a banjo block off eBay so I can retain my factory lines going into the heads with the factory banjo bolt that goes into the mechanical fuel pump.

Will the regulator need to be set at 60 PSI or 75 PSI?

65 would be a good starting point. I cannot answer your question on size injectors that will work with one SD pump. Post up this block you are using for the fuel lines, I am curious to see it.

Here is the YouTube video that explains it and the eBay auction.

http://www.youtube.com/watch?v=z2SDEi45Oyw
http://cgi.ebay.com/ebaymotors/ws/e...923194&viewitem=&sspagename=ADME:L:OC:US:1123

I probably paid a little much for it, but I can't bend or flare tubing at all.

Compression fittings from Home Depot work well. A tubing bender from Harbor Freight is cheap.

http://www.harborfreight.com/tubing-bender-3755.html

That is a good link for the guys that do not want to have to fab those lines. A couple of holes for mounting or a port for a pressure gauge would have been cool.

Tom S said:

A couple of holes for mounting or a port for a pressure gauge would have been cool.

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Yea that would make it even better.

Tom S said:

That is a good link for the guys that do not want to have to fab those lines. A couple of holes for mounting or a port for a pressure gauge would have been cool.

Click to expand...

mjonesjr said:

Yea that would make it even better.

Click to expand...

I wonder if you could drill and tap that for 1/8" NPT to put in a gauge without any problems.

I was going to put a Tee fitting between the block and the hose fitting to put in a pressure switch to light the dash light.

It is just aluminum so it would be easy to mod it.

I have been looking for a fuel pressure switch to put up in that region to trigger the lights.

You don't happen to know the part number of the one you used do you Tom?

What size is the fitting on the end of the factory return line as well?

Sorry I get asked the question all the time and I just do not have the answer. I can tell I used an adjustable hobbs switch is all. I just adjusted it to get the pressure I wanted.

Tom S said:

Sorry I get asked the question all the time and I just do not have the answer. I can tell I used an adjustable hobbs switch is all. I just adjusted it to get the pressure I wanted.

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I figured you do.

Do you happen to know what thread size the fittings are on the factory return lines? I need to get an adapter to run into the Aeromotive regulator.

I kinda like that block idea. didnt someone use some fittings from parker to do pretty much the same thing?

dave186 said:

I kinda like that block idea. didnt someone use some fittings from parker to do pretty much the same thing?

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It is hard telling. There are so many conversion threads on the net it isn't funny.

It was TimC63 that did it with the parker fittings

If you look around the web there is a conversion chart to match wrench size to fitting size. If you cannot get to them on your rig I will check on mine.

Tom S said:

It was TimC63 that did it with the parker fittings

If you look around the web there is a conversion chart to match wrench size to fitting size. If you cannot get to them on your rig I will check on mine.

Click to expand...

I will look around.

It's no big deal. I just thought you might remember off the top of your head.

I was thinking I read somewhere that they were 1/8" NPT Female fittings.

Do you think it would hurt anything if I didn't run a fuel heater?

I think they are -4 AN if you want to retain the factory return hoses but not sure.