Re: CIS-E fuel modification @ WOT

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

Great post Scott.   Should be archived by anyone interested in CIS-E and
CIS-E III .  

There is obviously much more going on with that temperature sensor than I
envisioned.  I wonder if anyone has access to an EG analyzer?  My one test
with temperature sensor induced enrichment was unscientific and
uncontrolled. It was a bad temp sensor that provided somewhere in the
vicinity of 500-800 ohms (can't remember precisely what I measured) when
the motor was at operating temperature.  Comparisons made under those
conditions to those with a new temp sensor installed (about 225 ohms)
indicated the richer condition caused a loss of power below 3000 rpm and a
corresponding increase at around 5500-6500 rpm.  Of course the bad temp
sensor put out enough fuel during cold starts to compromise flow through
the cat (no nine lives for that one). By the time I changed the cat I had
also changed the exhaust so direct comparisons aren't possible now. 

Thanks again, 

Bruce
Thinking it might me more worth while to spend his energy bolting in an
additional 112 hp