Fast Efi Fuel line
Thread Starter
Intermediate
Joined: Apr 2010
Posts: 32
Likes: 10
From: Copenhagen Denmark
Fast Efi Fuel line
Hello
I'm planning to mount a Fast Efi system, kit 30227, on my 72 and i have a question about the fuellines, hopefully someone can help.
Is anyone running this system with the original fuellines?, 3/8" feed and 1/4" return i think.
Thanks in advance
I'm planning to mount a Fast Efi system, kit 30227, on my 72 and i have a question about the fuellines, hopefully someone can help.
Is anyone running this system with the original fuellines?, 3/8" feed and 1/4" return i think.
Thanks in advance
Race Director
Joined: Sep 1999
Posts: 11,360
Likes: 382
From: Plano TX
The 3/8" feed is fine. The 1/4 return is not recommended. Some have gotten away with it, but it should be the same size as the feed. You can check out the new tank/pump combo from Edelbrock:
http://www.summitracing.com/parts/edl-3605
You'd mount this in the engine compartment, and just hook it to your existing feed line. This way you do not need to run a new return.
http://www.summitracing.com/parts/edl-3605
You'd mount this in the engine compartment, and just hook it to your existing feed line. This way you do not need to run a new return.
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
The 3/8" feed is fine. The 1/4 return is not recommended. Some have gotten away with it, but it should be the same size as the feed. You can check out the new tank/pump combo from Edelbrock:
[SR - removed link]edl-3605
You'd mount this in the engine compartment, and just hook it to your existing feed line. This way you do not need to run a new return.
[SR - removed link]edl-3605
You'd mount this in the engine compartment, and just hook it to your existing feed line. This way you do not need to run a new return.
Thoughts?
Race Director
Joined: Sep 1999
Posts: 11,360
Likes: 382
From: Plano TX
An AC car is pretty much filled up as far as the engine compartment goes. Not sure if you could find a spot for it.
I went with a custom stainless tank from rock valley. It has the pump in it. I used the factory line as feed and added a 3/8" steel line for the return.
I went with a custom stainless tank from rock valley. It has the pump in it. I used the factory line as feed and added a 3/8" steel line for the return.
Le Mans Master
Joined: May 2003
Posts: 8,876
Likes: 3,556
From: Fernandina Beach FL
2023 Restomod of the Year finalist
2020 C3 of the Year Winner - Modified
Also look at the Aeromotive Phantom system- neat piece.
Here's how I did mine- replaced both lines -same size. Remember at idle over 90% of your fuel is returned to the tank.
http://forums.corvetteforum.com/1587296744-post4.html
Here's how I did mine- replaced both lines -same size. Remember at idle over 90% of your fuel is returned to the tank.
http://forums.corvetteforum.com/1587296744-post4.html
The ORIGINAL and bestest
Joined: Oct 2000
Posts: 10,009
Likes: 240
From: Toronto Ontario
Toronto Events Coordinator
I have the Fast Ez-EFI kit on my car, and I used the 3/8" feed and had one of the automotive tubing vendors manufacture a pre-bent 3/8" return line for me that exactly mimicked the 1/4" return line. It fit exactly where the smaller line was perfectly.
Race Director
Joined: Jan 2000
Posts: 12,399
Likes: 247
From: San Jose CA
How hard was it to replace the line on the car? Did you have the body off?
The ORIGINAL and bestest
Joined: Oct 2000
Posts: 10,009
Likes: 240
From: Toronto Ontario
Toronto Events Coordinator
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Safety Car
Joined: Jan 2009
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From: New York
You have to use 3/8 return.. You can run the return along side the feed line if you want to make it super easy. And when I did mine I used the 1982 sending unit and mounted the Fast in tank pump to it.