K-Jet /PIC hybrid

[pat ford]

 What I was wondering is do( or could) they mount the meter on its side and a spring to work against instead of gravity? I tryed the cis system on my rover after taking the bmw and then the SAAB cis and k jetronics courses from bmw and saab ( back in 85 when SAAB was handle by Jaguar in Canada)
 Whenever I got onto a surface that had any regular pattern to the bump, the mixture would go nuts.  

---- Begin Original Message ----
 From: Orin <orin at diy-efi.org>
Sent: Thu, 26 Apr 2001 10:47:52 -0700 (PDT)
To: diy_efi at diy-efi.org
Subject: Re: Re: RE: K-Jet /PIC hybrid

> pat ford tapped away at the keyboard with:
> 
> > are they cis based?? maybe a different dampening system or the
> > palte working against a spring instead of gravity....  I took a
> 
> Definitely K- and KE-Jetronic. From about 1980 to 1991.
> 
> Don't know about what sort of springs, etc. The problem is one of
> inertia - specifically that of the plate and the lever. Putting a
> stiffer spring in the system would probably only exascerbate the
> massive turbo-lag.

There are no springs.  The plate is pushed 'down' by fuel pressure
and up by air flow.

My guess would be that the plate would be as high as it goes most of
the time at the Audi Q power levels and fuel would be controlled
by the pressure difference across the metering slit, not the size
of the slit - ie by the 'lambda' frequency valve (which incidently
is used in the UK quattros which _don't_ feature an O2 sensor).

Note that K-lambda was used in Audi 5-cyl turbo engines up to
1991 models at least (Canada and non-quattro US that I know of).

Orin.
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---- End Original Message ----



Pat Ford
12 Strathcona St
Smith Falls,On
613-283-4703
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