When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Ok guys, my 383 stroker is almost here & the builder highly recommends an electric fuel pump. Desired is 6-6.5 pounds at 110-120 GPH. Here's the question,,, would the fuel return pipe that runs back to the tank work for return line with the electric pump? It's a '79. The return line is smaller so that's why I'm asking. Thanx in advance,,, Bill
Yes it will work. The Electric fuel pump will provide an even pressure to the carb even when the car is at idle and provide a better fuel delivery. The return line does not need to be modified and will return the excess fuel back to the tank without any problems.
I have installed universal external fuel pumps in cars before and never had a problem with flooding the carb.
I have feed a 383 500 HP stroker very easily with a good mechanical fuel pump. Not sure if you are using a carb if you really need an electric fuel pump. I would do a little more research before plumbing in and wiring an electric fuel pump. What are your intentions with this motor also. How much HP are you making and what Rpms are you running.
if you install a electric fuel pump use a good return style regulator .install a fuel pressure gauge also .a relay power switch is easy to install .will you be retaining your spare tire ?
Get a new builder. Mechanical pumps can easily supply anything the 383 will put out. The unknown aspects of how someone installs an electric are much more likely to cause failures.
Get a new builder. Mechanical pumps can easily supply anything the 383 will put out. The unknown aspects of how someone installs an electric are much more likely to cause failures.
A 383 stroker does not require or need an electric fuel pump. It would be your cost to no advantage. It's a waste of time. Use your stock pump.
From: Las Vegas - Just stop perpetuating myths please.
Electric pumps have very bad self regulation without a return for a recirc line. Once the inlet needle tries to seat inside the carb the fuel line is dead headed and many times the fuel press soars as the electric pump doesnt regulate well by itself without a regulator. Without a recirc line even the fuel pressure regulator has problems.
But if u are using EFI then u will need an electric pump for the higher pressure. Yes the return works well as that is what it is actually doing with the mech fuel pump. Many dont understand the return line is a constant recirc for the stock mech pump to reduce vapor lock.
The stock style mech pumps have very good self regulation and no press reg is needed. I have and electric press gauge mounted in my clock hole and my mech fuel pump is great with consistent 6-7psi and no regulator.
Thanx guys.I did think it was kinda weird to want an electric pump. For the additional cost, I wasn't really seeing the advantage over a good mechanical pump. Plus, I wasn't looking forward to anything extra I had to do to get the Vette out of the garage that it's been in for 10 years.
I put an electric pump on my C3. Costly and time consuming. The late model roller block that I'm building has no provision for a mechanical pump. As others have stated stick to a mechanical pump. Simple and it works.
Got this 1979 vet had electric fuel pump,it went out, took off blocking plate where the manual fuel pump goes and found the pushrod still in there.i have tried pulling it out but it does not move. Ive clamped needle nose vice grips on it with no luck heres a pic The gouge was already in there
I couldn't get a welder in there so i blocked it back off and noticed that the return line was not hooked up.how would i get that push rod out.besides tearing down engine and is it going to hurt anything like it is is doesnt move and there is no sounds when engine running. running
So, rather than start a new thread to ask your pushrod question. You will have everyone read through this 10 year old thread to get to your question.
This is just rude. We all don't need to read all these 10 year old posts to get to your sorta related question.
Please start a new thread and ask your question straight up.
Got this 1979 vet had electric fuel pump,it went out, took off blocking plate where the manual fuel pump goes and found the pushrod still in there.i have tried pulling it out but it does not move. Ive clamped needle nose vice grips on it with no luck heres a pic The gouge was already in there
I couldn't get a welder in there so i blocked it back off and noticed that the return line was not hooked up.how would i get that push rod out.besides tearing down engine and is it going to hurt anything like it is is doesnt move and there is no sounds when engine running. running
To answer your question, No it won't hurt anything.
That pushrod probably has a brass tip that mushroomed and is now trapped in there.
If it is at all possible I would continue using the mechanical fuel pump. To install an electric fuel pump and set up a good pressure regulator you will spend a LOT more than just putting a good mechanical pump on your engine. The cheaper fuel pumps are not very good and they all need a regulator despite what they tell you.
I converted my mechanical fuel pump to an all electric Aeromotive system and it was well over $500. Unless you want a noisy fuel system you might to find an Internal Fuel pump so your noisy fuel pump gets quieted down being inside the fuel tank. I also used a Aeromotive PWM Electric Fuel Pump Controller which reduced the noise of the fuel pump but is costly. I mounted the Aeromotive external pump inside of a roll of rubber to isolate and it did a fair job.
A good trick is to mount your fuel pressure regulator near or even at the fuel tank and send only the 6 p.s.i. to the carburetor. I have a Holley EFI system and I used their OEM Tank Module which uses the original fuel tank and has the Fuel pump and pressure regulator inside the fuel tank. The pump is very quiet and works well sending a 58 p.s.i. stream of gasoline to my throttle body.
Yes you should start a new thread however check the front of the block and make sure someone did not put a too long bolt thru the threaded hole that will hold the pushrod in place for changing the fuel pump on a small block. it could be that or like stated above the push rod has a mushroomed bronze tip. welcome to the forum.
Converting to Electric fuel pump
