Inline pump
Thread Starter
Instructor
Joined: Jan 2007
Posts: 233
Likes: 41
From: Simpsonville SC
Inline pump
Considering going with an EFI setup for a 383 build I’m working on and have a fuel delivery question. Has anyone had success running an inline fuel pump (Walbro GLS392) with a late model top feed tank? I have a 78 and I'm seeing mixed reviews of gravity feed pumps with the top feed tanks. How big of an issue is this for a street car?
Burning Brakes
Joined: Oct 2008
Posts: 1,037
Likes: 14
From: Mobile Alabama
Many people use them. You can get it to work, its just more likely to have problems. Electric pumps push better than pull. The fuel also cools the pump, so starvation is more than just an engine operation problem, pump life comes into play. You didnt ask, but I like in the tank (factory style) - they usually have a reason behind their designs.http://forums.corvetteforum.com/c3-t...fuel-cell.html
Last edited by 74modified; Oct 17, 2012 at 09:59 AM.
Le Mans Master
Joined: Aug 2010
Posts: 9,272
Likes: 17
http://www.google.com/url?sa=t&rct=j...rZAVOVfU2Okc2A
fords have been using inline frame mounted injection pumps for years as have several others, from top feed tanks, they work. you could actually use a ford inline pump on a chevy with a bit of line adapting, I've done that. hope this helps
btw, a stock inline ford pump, bout $60, fancy inline pump,bout $250
same pressure, same volume, last for years, they will suck your tank dry
fords have been using inline frame mounted injection pumps for years as have several others, from top feed tanks, they work. you could actually use a ford inline pump on a chevy with a bit of line adapting, I've done that. hope this helps
btw, a stock inline ford pump, bout $60, fancy inline pump,bout $250
same pressure, same volume, last for years, they will suck your tank dry
Last edited by oldalaskaman; Oct 17, 2012 at 10:16 AM.
Thread Starter
Instructor
Joined: Jan 2007
Posts: 233
Likes: 41
From: Simpsonville SC
Thanks for the feedback.
So will an 82 fuel pickup like this. http://www.ecklerscorvette.com/corve...pump-1982.html
drop right into my tank without any modifications? What's the right in tank pump to use with this setup? This seems like an easer route than having to cut the stock fuel line.
What are a few part numbers for the Ford inline electrics fuel pump?
So will an 82 fuel pickup like this. http://www.ecklerscorvette.com/corve...pump-1982.html
drop right into my tank without any modifications? What's the right in tank pump to use with this setup? This seems like an easer route than having to cut the stock fuel line.
What are a few part numbers for the Ford inline electrics fuel pump?
Burning Brakes
Joined: Oct 2008
Posts: 1,037
Likes: 14
From: Mobile Alabama
I am not an expert on tank differances, but the gasket for 78-82 is the samehttp://www.ecklerscorvette.com/corve...1978-1982.html This would lead me to think you could use the later sending unit/pump. The pump you need would depend on the pressure required by the injection system you plan to use.
Melting Slicks
Joined: Aug 2012
Posts: 2,548
Likes: 379
From: Woodinville WA
seriously, call walpro, or whoever is making your fuel injection system for specs.
In a C3, I don't see a problem in the world with a frame mount since the pump is well below the tank. They put the pump in the tank for several reasons including: it's easier to keep cool (longevity), and costs less to manufacture because you simply drop the pump in the tank and it goes in as unit.
But as Alaska points out, frame mount fuel pumps have been around for decades without problem. The biggest issue with a pump is if they starve for fuel for an extended time - they'll overheat and eventually die.
In a C3, I don't see a problem in the world with a frame mount since the pump is well below the tank. They put the pump in the tank for several reasons including: it's easier to keep cool (longevity), and costs less to manufacture because you simply drop the pump in the tank and it goes in as unit.
But as Alaska points out, frame mount fuel pumps have been around for decades without problem. The biggest issue with a pump is if they starve for fuel for an extended time - they'll overheat and eventually die.
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