Quote:
Originally Posted by Schrade
I 'moved along' road test, and it spun up smooth as silk. 28.3 MPG's steady @ 59 on the flat (remember I have the 4L60e). Once I get a 3.07 in the back, with headers + Jeff's [Shrek's] pipes, that should bring it up close to 30+. I had my '94 LT1 just under 33 @ 65 with the turtle gear 2.73, after top end re-work.
Still not happy with the glitch at 1.6 - 2.4%TO, which is noticeable when it shifts light throttle.
Restrictor gasket is still in place as well...............................
Where's Franke here - how do I check 02's for proper reading?
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Schrade,
O2 volts-
is the measured voltage (in Millivolts,
mV) generated by the O2 (Oxygen) sensor. Will typically range from 100 mV (lean) to 900 mV(rich). For SFI systems, this is divided into left and right side values in Datamaster.
Forget what I said that about your O2's as I went back and looked at the vid again. They are varying as they should be. What I was looking at is the Right side LT count staying at 115 (rich) even thought the ST counts were going lean 130-134 as you increased throttle.
There are guys on this forum much smarter than I am in this arena and maybe they can jump in here but I am curious as to why your LT count on the right side shows to be rich fairly constantly when the left side seems to be about right (126-130) counts. Since this vid is at idle in CL, I think the LT/ST should be about 128 or so to maintain correct AFR.
I am comparing your DM readings to mine. When I had a bad injector on my left bank my INT/BLM histogram showed the LT fuel trim to be constantly rich at 115. After I replaced my
fuel injectors both of my LT and ST readings are right around 126 to 130 counts at idle and respond equally when I goose it. Yours doesn't seem to do that in that video.