Fuel Line Max PSI
Thread Starter
8th Gear
Joined: Dec 2021
Posts: 8
Likes: 0
Fuel Line Max PSI
Good Afternoon
Would an 89 C4 fuel line take 60 PSI? I want to replace the lines but that task would be harder than knowing what the max psi of the original fuel is. If they can take 60 PSI reliably, I can go on about my normal task on the project.
Thank you
Would an 89 C4 fuel line take 60 PSI? I want to replace the lines but that task would be harder than knowing what the max psi of the original fuel is. If they can take 60 PSI reliably, I can go on about my normal task on the project.
Thank you
Melting Slicks
Joined: Mar 2002
Posts: 2,876
Likes: 764
From: Sligo PA
I agree that they probably could. But braided steel line kits with PTFE are so cheap anymore I would just replace it and be done with it. I went -8an feed and -6an return on mine. I got two of the -6an kits and I did my trans lines too with an external cooler. Total cost for the line and all the fittings for the fuel lines was under $200.
Thread Starter
8th Gear
Joined: Dec 2021
Posts: 8
Likes: 0
I agree that they probably could. But braided steel line kits with PTFE are so cheap anymore I would just replace it and be done with it. I went -8an feed and -6an return on mine. I got two of the -6an kits and I did my trans lines too with an external cooler. Total cost for the line and all the fittings for the fuel lines was under $200.
Safety Car
Joined: Nov 2008
Posts: 3,717
Likes: 551
From: Seattle Washington
3/8 Steel Tubing is rated at 3500 PSI but I would consider the GM stuff the cheapest they could get away with so I would subtract 25 percent.
Melting Slicks
Joined: Mar 2002
Posts: 2,876
Likes: 764
From: Sligo PA
As far as removing the old lines I just started chopping. It was a pain but they all came out.
Melting Slicks
Joined: Mar 2002
Posts: 2,876
Likes: 764
From: Sligo PA
If you look close you will see the mount I made for the fuel filter is just a piece of old exhaust tubing cut long ways and two pieces of real thin bar stock welded to it for mounting feet. Then it all got clamped together with a hose clamp.
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