25 years ago I installed an electric fuel pump in my mustang, carbureted. The pump ticked kinda when it ran and it only ran when pressure dropped.. At idle it was mostly off.. Every now and then you could here tick tick tick as it satisfied fuel needs.. The only pumps I can find now are electric loud whining type. Question is does the "on demand" type still exist.?. I want an electric pump for a 4 cylinder carbureted car.. something that doesn't scream when it's on and doesn't need a return line. Any help is appreciated..
this seems to be what's commonly available these days. Two different pressure ratings. You need to mount it below fuel level for long life. It's pretty quiet, compared to some of them. https://www.edelbrock.com/universal-micro-electric-fuel-pump-30-gph-114-lph-gasoline-e85-17303.html
I have used SU's And Facet's They differed in when you heard them. The SU runs "on demand" and you'll hear the tic tic when you are driving and using fuel. Usually the car is loud enough you really don't hear it. It might tic sitting at idle, not much though. The Facet bypasses when the fuel is not being used. It's quiet driving and tics at red lights. For me, the Facets are more reliable. Others make both kinds. They pretty much go one way or the other. I replaced the (old points type) SU on the firewall of the Morris Minor with a Facet. It may not be ideal as it is feet above the tank. It has worked for years. It doesn't leak and randomly quit working like the SU, I'm good. Nowhere near loud like a big Holley. Nothing ruins a "Traditional" looking car rolling by more than a loud assed fuel pump or electric fan. Mike
I know what you mean...back in the '60s I had a AC pump..very cool....when you first turned the key on it clicked until the line filled up, then only when you need more fuel in the carb. Just a tick tick, tick. I didn't have a gas gauge, but knew when I was getting low on gas, because the fuel pump would start running full strength and then go back to tick, tick, tick. Knew I had about 2 miles to find a gas station.
A lot of the new rotary pumps are high pressure (too high for a needle & seat to handle), and made to run through a rail and then back to the tank.
Inline pumps are great. low amp requirement, very quiet. Although it's can be a little tough to find a low pressure version. People really should get used to...using...Google on their own ! This, instead of having "others" do this work for them. Here's one, it took all of about 5 or 6 seconds to find..! https://www.summitracing.com/parts/...MI1J3Ko5Sd-AIVVMLCBB0-UgbKEAQYBCABEgJ2r_D_BwE Although you neglect to mention the carburetor..!? The above 3psi pump should work. If you want less pressure, again...dig into...Google ! Mike
You might consider if everyone did their own research & were able to come up with their own findings & conclusions , there wouldn't be a lot of need for chat rooms like this ! Of coursed , some folks know everything , so there's that ...
https://www.walbro.com/fr-series-fuel-pumps/ "FR pumps will produce an audible clicking sound when cycling. FRA and FRC pumps will run at a constant rate (fixed frequency), regardless of the fuel flow rate. FRB and FRD pumps will slow their cycling as the fuel flow rate drops."
It makes a lot of sense for dynahoe to ask for opinions on this site, here is where you find the folks who have actually used these pumps and know which ones work and how well. Google is a great source of info of course but mostly shows who might produce an item, the Hamb is where we find out if it works.
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