Re: PI

["Graham Stretch" <technical@iwnet.screaming.net>]

Hi Dave
The Lucas PI is only regulated by air flow, by using manifold depression,
there is no adjustment to the delivery for engine speed, yes the metering
unit turns faster as the engine turns faster but with the exception of
losses of delivery caused by flow rate characteristics through a hole in a
given time, the time reducing a rotational speed increases, there is no
change in fuel delivery for a given vacuum as a result of speed increases.

Graham.

----- Original Message ----- 
From: "Dave Massey"
Subject: RE: PI



>   The Lucas was a purely mechanical system and worked on
> throttle position and engine speed.
> Dave



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