Turbo Project, Fueling

[Huw Powell]

Alexander van Gerbig wrote:
> 
>     I have discovered some interesting things about my fuel system over the
> past day.  For one it has a much larger DPR current range.  Typically the
> CIS-E systems run to a rich limit of 10mA, my system is self adaptive and
> will run to 23mA to richen the mixture under any situation that requires it.

the limit sure is not 10 mA.  heck, it'll run -40 mA to kill the excess
fuel when you hit the idle switch, for example.  I never looked to see
how high I could get he current to go "+" though.

>     I moved the WOT switch out of the way so it wouldn't actuate under full
> throttle.  I then attempted 2 full throttle charges in 2nd through 3rd,
> staying below 5.5k rpm in each gear.  I hit 6.5psi and there was plenty of
> fuel to spare according to my gauge and my ass.  With WOT enabled the car
> bogged, a/f gauge read full lean, and I would go no where; without the WOT
> switch the engine revs freely, no retard or slugging

cool.  i wonder how close my theory might have been?  I wonder if we
will ever know?  I think it is time to start driving with a DPR current
meter in circuit.  WOT is easy, you can check it anytime just off idle,
compare that to what you get under that strong boost.  Hint, let a
passenger read the meter.  You'll be too busy watching the tach and
shifting from what I remember of Marc's 4kqt.  Not much room between 3k
and 6k rpm with that engine :-) :-))))  <-- excessive grins

-- 
Huw Powell

http://www.humanspeakers.com/audi/

http://www.humanthoughts.org/