Turbo Project, Fueling

[Alexander van Gerbig]

    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.
One message on a VW message board said the 16v engine with the CIS-Motronic
fuel system can hit 10psi without problems.

    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, and the gauge reads
two bars above stoich.  I have dumped the codes and got a rich idle mixture
code, but I fixed that.

    Once I get everything settled I am going to slowly turn up the boost and
see what can be done.  Those two full throttle runs felt like I was driving
my mum's 200q20v, no joke.  The car really moved from 30 to 70mph very
quickly, felt neat in my little 80.

Yeeeehaaa!

Alexander van Gerbig -- '88 80

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