WB O2 Heater

[Bruce]

As Bruce Rowe suggested, I decreased the heater limiter resistor, slightly.
His calc showed needing (2) 15 ohm resistors.  All I could find were (3) 20
ohmers.  So added one by one to see how things behaved.  Wound up with all
three, actual measured resistance of 9 ohms.  Warms up in just 15-20 seconds
now.


In the on going tuning saga using it.
Made a few runs, and again added fuel (started from 0 correction again).
Boost dropped from 20 PSI to 15 now (slightly cooler ambient temp).  But,
again the HP was there, just making more HP now, at less boost.  I can't
wait to turn the boost up now <g>..

I've tried the probe idea, the pre turbo idea, and mid exhaust placements
now.  The pre turbo location definetly *seems* to read a little lean.
Within reason, just a little low like .3 AFR.   Again, you tune for
performance, not souly by indicated AFR.

Depending on local parts availibity, I just might piece another one together
and compare the AFRs at the same time, in different locations.
Bruce

----------------------------------------------------------------------------
To unsubscribe from diy_efi, send "unsubscribe diy_efi" (without the quotes)
in the body of a message (not the subject) to majordomo at lists.diy-efi.org