Just checking if I am on the right path here. went out and did some playing around. On my non-WOT tune I was getting an A/F in the 11.1-11.4 range going WOT in 3rd and 4th. Once it went as low as 10.9 but it was fairly steady in that range. I was targeting a 12.8. Made some changes to the MAFtransfer (leaned it out 13%) from 2.8v+. Making the return trip in 3rd and 4th the A/F was in the 12.8-13.2 range with one 13.5 that quickly went down to 13.2. I may richen it up a few % like 2-4 and see what happens but really is that range acceptable? I mean I am thinking it will not be a rock solid 12.8 all the time everytime so would those who have done this more often say that is close enough or keep fine tuning it? I just dont want to start splitting hairs on something I will never get much better. Thanks, Greg
My afr at wot bounces around ~.3-.4 difference of what I target. I always see on dyno charts a nice flat line. I am guessing they even it out. Maybe a dyno operator will chime in. I would rather be a little rich, then lean.
12.8:1 on 93 octane gas is a good target - on the dyno I usually shoot to get them to no more than 0.1-0.2 AFR either way of commanded through the entire pull. I also start the pulls as low as possible so I am sure to have the entire curve dialed in. On dyno charts the #s can be smoothed, averaged all sorts of ways so a super flat AFR line might not be as flat unsmoothed. Wes
I think I will fatten it up 2% and see if it helps stabilize/get things a little tighter in the target area. Good things is a little fatter on the orig. tune should run good on the bottle. I want to target 10.8-11.2. Thanks for the input guys now I know what to shoot for.
I'll go along with what the other guys said Greg Like Wes said, you get some smoothing benefits on the dyno My WB is kinda old school and it moves around a good bit so there ain't much ... if any ... soothing to it I used to load my DL's in Excel and use the averaging feature to arrive at a value Grady
