braided fuel line

[tull]

Gentlemen need some help
ressurecting a 73 that was a cis car going to use some 42mm webers instead
ned help with fuel hose sizes and where to purchase braided line
all i can find is generic rubber
what sizes vent is one size then there are 2 diff sizes that feed tunnel
for feed and return
i also would like some input as to fuel vent and feeding the webers
thanks
David

[John Z Goriup]

.......42 millimeter Webers ????

[edmayo]

We get the genuine braided fuel hose from Wurth, should be 7.5 mm ID for the return and engine bay hose, and should be 9 mm ID for the discharge line from the tank. (you can measure the steel lines in the tunnel to be sure) Besure to only use the norma clamps also from Wurth. They have a smooth clamping surface, don't use the generic worm drive clamps. They chew up the hose. Not sure what vent hose you mean, if you mean the vent hose in the front compartment you can get the correct vapor rated and color hose from McMaster-Carr. PVC yellow.

[Brad Davis]

Tull,

I can help with the 7.5mm braided line. Black cloth braided or steel braided. Both are Cohline hose.
You may be able to find it localy, if not I am happy to help.

Best regards,

Brad

[tull]

the 40 mm webers were ported to 42mm by paul @ performance
sssswwwweeeettt
have some tall manifold to go with , trying to get this thing up and running, within the next 42 yrs would be nice
Brad thanks i will pm you
Ed thanks for the info no need for vent hose if using the carbs believe that was all set up for cis application

[1QuickS]

The fuel delivery system would be best served if you could use the return to tank provision to allow the fuel to cycle through the carbs. (You would need to install an adjustable pressure relief downstream from the carbs to establish the 3.5 psi delivery pressure the Webers like.) This would be VERY effective to control fuel percolation issues a dead-end fuel supply system could have...

[edmayo]

Tull, when I said "vent hose in the front compartment" I meant the vent hose system for the gas tank. You'll still need some kind of venting there even with carbs. Sorry if I wasn't clear.