I need to install a budget friendly fuel pump in my 28 RPU. There are several widely different types of pumps out there. I am looking for something in the 7-10 PSI range, GPH requirements are minimal. I am interested in reliability (if such a thing exist’s anymore now that everything is Chinese) more than anything else. Holly has a wide range of pumps but I think that you are paying quite a bit for the Holly name. I would be willing to search for an NOS pump if I could determine what to look for, I have used the carter pumps in the past with good results however they are a bit noisy for a vehicle that is as quiet as a banger motor. Thanks
How much money is in your fuel pump budget? Why so much pressure for a banger? Reliability has something to do with how the pump is installed, too....
That much pressure is going to blow the needle off the seat. And leak everywhere. Unless you put in a regulator. Are you not using the original tank and up draught carb ?
I use the K&N 81-0400 to feed 2 Strombergs. It is rated at 2 lbs and has never failed me. It is on a banger but the 97s don't like any more fuel pressure. Mine is mounted under the dash and you hear it on startup, but when the engine is running you never hear it. Summit sells it for $84.00 Mine is mounter under the dash just after the shut-off. Warren
Because for high altitude vapor lock issues I have found that a higher pressure from a pump installed right at the tank with a regulator as close to the carb as possible. I prefer to use a seperate, adjustable regulator as opposed to a pump with the regulator built in to it. I got 4 responses from my question (so far), 3 of them ask “why so much pressure?”. Why not just answer the question? The why I want that pressure range should not be required in order to answer the question. If you don’t have an answer for the original question then don’t respond. I have found that providing more information does not make it easier to get an answer, quite the opposite in fact. Providing more information just provides more points for people to pick at. It can be extremely frustrating and time consuming. I have put many fuel system together in the past and have a pretty good idea of what works and what doesn’t work. If money was no object I would not have even bothered to post the question. Due to unfortunate circumstances, this project requires that i pay attention to the expense/ In this era of Chinese junk it can be a real challenge to find an item that functions the way it supposed to, and do it reliably for a reasonable length of time. What I was hoping for was some advice based upon real world experience. As I stated originally, there are several very different types of pumps available (pulse pumps, vane pumps, etc) that, if you only looked at the specs would meet your specific needs. Jus which type works better then another? I really, really, prefer US made parts for my vehicles, particularly parts that have moving or electrical components to them. A fuel pump has both moving components, and electrical components so they are particularly prone to defects.
Wuga’s response came while I was typing my last comment so now i have 2 responses that at least attempt to answer the question. Thank you Mr. Wuga, sir.
Check out Carters line of external electric pumps. I run the 4600 model and have regulated down to 6.5 psi. Been on the car for at least 7-8 years and believe it’s made in Mexico.
That sure looks like one of the old Airtex pumps (that used to be quiet & reliable); wonder how close it is. Pressure would be in the range requested, too.
If you don't answer questions, then you won't get useful answers. Sorry. We still don't know what your budget is. $50? $100? $200? does this include the regulator? how big of a concern is noise? Enough that you have to use a pulse pump, not a vane pump? I've done well with a blue Holley pump and front mounted regulator, but it's noisy and expensive. I've also done well with the Edelbrock red pump, it's quiet, relatively inexpensive, but needs to be mounted below the fuel level in the tank. The pressure might not be as high as you think you need to prevent boiling. Good luck, there's no easy answer for this one.
At the risk of giving you more useless information, pushing the fuel from the tank with a pump should solve any vapor lock situation. Most inexpensive electric fuel pumps don't regulate pressure well without a return line. Good luck with your quest.
I want to keep the cost of the pump itself below $100, preferably well below if possible. I’ll pay for quality but I want to know that I am getting quality for my money. The Holley red and blue pumps are nice but are too spendy for me.
The Carter 4600 is the pump I was referring to in my original post. They are good pumps (at least they were when they were made in the US), but a bit spendy and a bit noisy. My GPM needs are so low that I don’t need a real big pump.
The diesel lift point (so far as I can find) does not state anywhere that it is suitable for gasoline (I would be interested to get more information). I would appreciate more info on the Delphi pump.
I intend to install the pump below the tank (outlet is on the bottom of the tank), pressure regulator as close to the carb as possible, return line from the low pressure side of the regulator with a needle valve in the return line to the tank to keep the return flow relatively low but allow any air bubbles to return to the tank rather than go into the carbuerator. Admittedly this is an un tested plan but I have done a lot of research and i think it will work, basically a low buck copy of a popular high buck system.
Should be related to the gm # 25117340, they are an inline transfer pump used in both gas and diesel applications for 96-00 truck lines. You can go into a part store and ask for an in line pump for a k3500 454 and this will be the pump they give you, same as in the diesel. Delco is a Ep309 or a Delphi Fd0031. I think they make 9psi.
Well 2, perhaps you are right but I don’t sit at my computer doing a back and forth. My time is limited and my time to sit at a computer is very limited. I simply do not have the time to repeatedly defend my question, that’s not why I posted it in the first place. I have been dealing with a serious family emergency (my 89 year old was attacked and badly injured. My 90 year old uncle was unable to care for her and they never had kids of their own, I’m as close as they have). If somebody absolutely, positively, felt the need to tell me that they didn’t think that I knew what I was talking about (or asking about), I think one such comment would be enough, not three of them. I have decided to go with that Delphi pump. It’s inexpensive and has more the one supporter here. I appreciate all the assistance guys, enjoy a great Labor Day!
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