Re: NA I-5 performance suggestions

["Bruce Bell" <bbell04@ibm.net>]

I have been trying to remember what I measured when my sensor went south.  
500 ohms should be a good starting place. Then again Orin, or some other
scholar on this list may perform some magic EE computations and provide an
Ideal starting point. I wouldn't worry too much about hitting a prescribed
A/F. Some fun runs in third between 5 & 6 thousand rpm will get you pretty
close.  Don't want to go too rich though or we'll eat the kitty.

I like the simplicity of your idea. Anyone know if the commercial units
were anything more than that? That is, did they vary the resistance with
the rpm at WOT?.

> > I'll bet someone on this list has a plan they
> >could share for a full throttle enrichment device.
> 
> Funny you should mention this, but I'm planning to fool around with this
> myself after reading about Techtonics Tuning kit for the Scirocco.  In
> theory its very simple.  Temp sensor is wired in series with another
> resistor which is shorted by the NC contacts of a relay.  When you hit
WOT,
> the relay cuts in opening the contacts and putting the "enrichment"
> resistor in the circuit.  ECU gets fooled into thinking the temperature
is
> colder and compensates by bumping up the current to the differential
> pressure regulator.  The fun comes in determining the value of the
> enrichment resistor so you don't go overboard and go past 12:1 F/A ratio.
> 
> 
> 
> -Tony
> _________________________________________________________________________
> 
> Tony Lum  (tlum@flash.net)                  1987 5000CS Turbo Quattro    
    
> Berkeley, California, USA                      1985 4000CS Quattro
> Audi Owner/Driver/Mechanic by Necessity ;^)      1980 5000S Sedan     
> _________________________________________________________________________
>