[urq] Warning about Fuel Pressure Accum.

[Brendan K. Walsh]

Interesting, I wonder what effect tweaking that would have on your fueling,
say setting it for 5.95 bar to maintain a higher static pressure while the
car is running. Some obvious concerns about overdoing it, but maybe there's
a gain to be had for cis turbo cars, where a lean mixture is a problem at
high rpms. I'm no expert on these systems, but maybe somebody else has an
answer.
Regards
Brendan

"If God had intended us to walk, he wouldn't have invented roller skates."
Gene Wilder, Willy Wonka and The Chocolate Factory.
----- Original Message -----
From: "Phil Payne" <quattro at isham-research.com>
To: <quattro at audifans.com>; <urq at audifans.com>
Sent: Friday, January 30, 2004 4:53 AM
Subject: Re: [urq] Warning about Fuel Pressure Accum.


> >  What I am calling Fuel Pressure regulator is the Zinc Chr. Plated Cyl.
you mention, and I
> have for the time ruled this out as you mention failure IMO is rare, but
that was one of the
> questions I had asked.
>
> We could do with some serious post trimming on these lists.
>
> I think it was Scott Mockry who discovered that this device is adjustable.
If you remove it,
> a long Allen key (I've forgotten what size, but I know it's a freaky
half - 3.5mm or 4.5mm)
> passed into the unit from the tank return end will engage in an internal
Allen screw.  From
> messing about, I suspect it's a residual pressure adjustment - but I know
that just fiddling
> with it has restored a failed unit from 5.2 bar to the stock 5.85 bar.
>
> --
>   Phil Payne
>   http://www.isham-research.com
>   +44 7785 302 803
>
>
>