So we are going to cut right behind the old connectors. Right at the back of the block. Then install the snap lock fittings and run that to the rail. We may need to install an extension piece but it looks good. The old system was fuel injected but at a lower pressure I think it was 28-32psi maybe. Do you think those flex lines will be ok? They look fine but not sure if they will be able to take the extra pressure.
They should be able to handle the pressure. The lines at the fuel tank are made of the same stuff and all us guys with the OBS trucks have never replaced them that I know of.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
very good info
Last edited by hewlett2002000; 03-19-2009 at 05:27 AM.
LQ9 transplant into 88 OBS truck
So I was curious, if the OBS lines have been replaced with steel braided, don't know what PSI max though, they should be fine to run with a high pressure pump? Just convert the ends to match the quick connects on the rails? I'm doing a conversion right now and was needing to know the details of the Fuel system. Don't mean to butt in.
Braided hose should be good to 300 psi if I remember correctly
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
I used the factory braided lines from some undetermined year OBS and didn't have to cut any lines, spent less than $50.00.
800-078 + 800-058 = 3/8 line
800-079 + 800-057 = 5/16 line
1991 Silverado ECLB
LM7-T56
How are them braided hoses connected to the nylon hoses?Originally Posted by r6z4o6
I used the factory braided lines from some undetermined year OBS and didn't have to cut any lines, spent less than $50.00.
800-078 + 800-058 = 3/8 line
800-079 + 800-057 = 5/16 line
800-078 + 800-058 = 3/8 line
+
= pressure side.
800-079 + 800-057 = 5/16 line
+
= return side.
Is that rigid nylon hose rated for the pressure? I have only seen that used in vapor applications. Also looks like it is supporting the weight of the braided hose, may cause problems when it gets brittle.
Thats what i was thinking too. I think if i end up doing something like this i will build some type of support structure. I think the hose is fine for the pressure. Its used in fuel lines and clutch systems.
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