psig? 2psi is about right.
----- Original Message -----
From: "gc" <litfuse@isp01.net>
To: <mgs@autox.team.net>
Sent: Saturday, June 22, 2002 5:04 PM
Subject: fuel pump pressure
> Gradually I am going from most likely to less likely causes for vapor lock
> symptoms.
> (i.e., low power and lumpy running after 1/4 mile (consistently!) after
> being parked a short while while hot on a hot day.)
> I've had this problem since swappng to dual HIF carbs.
> I've come to suspect fuel delivery pressure is less than fuel vapor
> pressure at under-the-bonnet temperatures. I now have a
> ridiculously long fuel line under there: why the front carb was chosen
for
> the fuel inlet baffles me.
> Anyway, about the fuel pump spec: my manual sez 4 ft. of pressure for an
> s.u fuel pump... well... being a chemistry teacher
> and engineer I think that means 4 ft of water, which my slide rule
> ultimately converts to 1.8 psig. Does that sound right? Seems low to me.
> I'm going to go check mine now, if I can find my long neglected gauge...
> Thanks
> Gary Cook
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