fuel line size? and string search

[Brian Devlin]

A 50 psi rubber line is probably intended for a carburated car.
Reinfocred rubber line should be well over 100 psi, and I've even
used some stuff rated at 300 or 400 (I think it was for some sort of
automatic tranny application) but that stuff is pricy. Oh
yeah...don't all the high pressure rubber lines on Audis have steel
braid over them?
-Brian

>The rubber fuel line i have is only rated to 50 psi
>and the CIS-E syst specs operating range  between
>about 64-72 psi.
>Naturally I have a fire extinguisher is the front
>cabin.
>This has held for 4 months or so with very tight metal
>clamp rings on each end.
>Good up t o 5k rpm so far.
>
>So, is ther rubber feul line rated past 75 psi??
>
-Brian