Contradictory Turbolink readings

[kjhansen]

Howdy all! I finally went to a track after a 4 yr hiatus. I'd made several changes to the car, so it was purely test and tune. Upgrades included TE44 turbo, RJC Powerplate, TH downpipe, and Translator with LT1 MAF.
Bottom line: Turbolink showed MIX as rich throughout my one good run, but O2 volts, spark retard and boost were as follows:

O2 RTD Boost
765 4.2 22.5
691 0 22.5
679 0 21
669 6.6 22
628 6.1 23
667 2.6 23
707 .2 22.5
679 0 22.5

Looks pretty lean to me! Any thoughts? Could the LT1 MAF and the Translator do this?
Keith

 

[XLR8]

It looks really lean to me. Can add some WOT fuel with the translator and see if your O2's get closer to 780? Is the O2 working?

 

[kjhansen]

O2 crosscounts are pretty active. I put in a Denso O2 sensor, which is supposed to be lead resistant, as I was using 114 leaded gas. Crosscount deltas were:
105, 19, 15, 0, 12, 28, 6, 0, 0
So that's bouncing around pretty good, altho I've never seen a 105 reading before...
How do I add WOT fuel with the translator? I don't have the extended translator.
I did turn up the fuel pressure two full rotations, but the track shut down (at 10:40!!) so I didn't get any more runs. I guess I'll check it on a local backroad I'm familiar with. But I have to get more 114 first.
Keith

 

[XLR8]

Originally posted by kjhansen
I did turn up the fuel pressure two full rotations

?? What was your fuel pressure at during the run(s) and after the "two full rotations"?

 

[kjhansen]

I don't know.
a) My fuel pressure gauge is not lit and it was dark.
b) Even if it was lit, I seem incapable of looking at gauges while I'm racing. A character flaw I need to overcome.
It was set at 42psi vac off, at idle.
Keith