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By Bill Childs - 10 Years Ago
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Hi guys. Gettin' real close to actual build time for my 292. Senior Mummert has been real helpful sending a bunch of tasty parts and keeping me on the right path to my goal. Gathering the last bits and pieces and was wondering what the good word is on fuel pumps these days. Are some more reliable than others? Will a stock style fuel pump be fine for my mild build with Mummert intake and 600 cfm Quickfuel carb? Any thoughts or wisdom on this is much appreciated.
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By GREENBIRD56 - 10 Years Ago
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The mechanical pump for a 428 Police interceptor is a great choice for the engine equipment you describe. Just right to support 300-330 HP. The Holley brand 80 GPH pump for the FE engines is pretty much identical - delivers over 30 GPH at 4.5 psi.
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By Bill Childs - 10 Years Ago
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Thanks for your input Steve. I'm thinking my engine will be closer to 240 - 250 hp max (stock heads, bore .080 over, 265° cam)?. It'll be a driver with the vac secondaries set so they only kick in when the pedal is mashed. Probably running about 320 or so cfm primaries almost always. I guess I'm hoping and wondering if a stock fuel pump will do the job. Any experience out there with a similar engine build and stock fuel pump? Thanks.
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By GREENBIRD56 - 10 Years Ago
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There are pumps for a 390 FE truck engine that have a canister style fuel filter screwed onto the bottom of the pump. I'm a believer in that type of filter - lots of capacity for crud and lots of fuel flow is possible, easy change out / clean-up too.
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By Riz - 10 Years Ago
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+1 for the FE 390 fuel pump. Easy to find and work right out of the box. If you don't need concours type matching parts a lot more economical for a build and bolt right up.
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By Bill Childs - 10 Years Ago
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Hmm, I wasn't aware of the FE interchangability. So the attachment and the pump lever are identical? I had heard horror stories of some later pump levers not working properly because they were not identical in shape and size to the original.
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By GREENBIRD56 - 10 Years Ago
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The diaphragm pumps are not "positive displacement" - best way to understand them. They simply "replace" whatever fuel is moved into the carburetor(s). Some don't keep up well as the rpm increases - that is the reason for the higher performance pumps on an engine that can rev.
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By brokengate - 10 Years Ago
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I would like to switch to the 390 FE pump with cannister filter and remove the inline filter and sediment bowl, does anyone have a NAPA or Autozone part number or the inclusive years of the 390 truck motor which used it. I did find it on ebay used ($45) and NOS ($245) but would be more comfortable at the parts store. Thanks for any help.
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By Y block Billy - 10 Years Ago
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I have gotten several of those pumps fron NAPA for $30.00
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By brokengate - 10 Years Ago
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Is it this one for a 1965 F350?
65 F350 fuel pump
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By brokengate - 10 Years Ago
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Doesn't look like this one
FE Pump
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By Bill Childs - 10 Years Ago
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Thanks again Steve! A search of "mechanical fuel pump" revealed a dandy Wikipedia explanation of the relationship between fuel pump and carb float bowl to control fuel volume. Knowing that a valve in the float bowl and a low pressure spring under the pump diaphragm are on duty to control flow was key. Fun stuff!
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By GREENBIRD56 - 10 Years Ago
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Ted - that second pump, the Carter that you included a photo of - is the one I would choose if I had space under the mounting point. Just need to determine the model number. Direct mounted filter housing and no extension in the casting hanging it down in the breeze is a good design.
T-birds have NO space under the fuel pump so my choice was the High Perf 428 (Airtex 362), had to disassemble and "re-clock" the ports to match the car - and then I mounted the canister style GF62 filter up where the birds usually have the factory "glass bodied" item (used the simple OEM bracket). With formed steel lines it looks and works like factory stuff. Many of the factory pumps have useless itty bitty 1/8 pipe thread fittings - that have tiny holes through them. I drilled them out or rigged different hard plumbing, wherever I could. Also put a fuel pressure gauge on the GF62 by drilling out one of the tapped mounting holes.
There are many ways to skin this cat - use common sense and engineer a safe system.
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By brokengate - 10 Years Ago
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Steve, I totally agree that the old Carter is a way more sanitary unit, the problem with it is that in my interweb browsing it appears to be no longer manufactured and likely not supported by Carter (not yet confirmed). There are some nice 390 FE pumps with no filter, Edelbrock makes the Performer RPM series (model 1724), the 110 GPH is plenty for my 312, the pressure is 6 PSI stating no need for a regulator. Hard tubing and an inline filter and I could have clean safe fuel delivery from pump to carb.
Edelbrock Performer Series edited to add link
Thanks for kicking this around, Bill I didn't mean to hyjack hope this helps with your thinking on a pump.
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By GREENBIRD56 - 10 Years Ago
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This is the data I got from Holley about the "best fit" (80 GPH) pump for the duty. There are actually two ratings shown - one for "no load" - and one at the required feed pressure. I think the 110 GPH outfit is rated at no load - and the 6 psi is max pressure. You need to look at the chart for the 110 GPH pump.
Below - this is the AC DELCO GF62 canister filter I usually recommend.
It has pipe threads at the inlet and outlet so you have to get the necessary adapter fittings to go to the flared style of tubing. The two fittings listed as going on each end of a Thunderbird glass bowl unit fit 5/16 flared tubes and work fine on the pressure side of the pump. The 5/16 tube will flow way more fuel than needed for a typical Y-block engine with a 4bbl carb.
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By Bill Childs - 10 Years Ago
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Very nice installation there Steve.
All good info sharing Ted. Thanks for jumping in and providing more fuel for thought.
Just picked up my FE 390 cannister filter style fuel pump at Napa. Part #6523. The parts guy printed out a massive list of applications for this pump. The Y blocks were definitely on the list. Now I just hope the spin on filter clears my Chysler Cordoba IFS.
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