ok so I went to the dyno and during the dyno runs I was seeing 55-57% duty cycle in my logs. my last pass at the track I was seeing a peak of 49% or so. the weird thing that doesn't add up is that we only picked up 6 hp on the dyno from my pervious tune that was ran at the track. this amount of duty cycle increase doesn't add up to me. looking at fuel air correction and total fuel correction the numbers are all different from run to run and I cant figure out what is causing the change. if anyone wouldn't mind looking through my logs and tune to help me figure out if there is an issue or if there is something going on in the backround of my tune that I'm not aware of that could be causing that large of an increase in duty cycle. this car runs on methanol and I plan on adding a turbo down the road so this is the reason for such large injectors.
log 134 is at the track, don't mind the rpm flair on shift, I'm working on getting that fixed.
log 149 is on the dyno
inj duty cycle issue possibly
Moderators: jsmcortina, muythaibxr
inj duty cycle issue possibly
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Re: inj duty cycle issue possibly
unfortunately for some reason it did not log fuel pressure for some reason. I must have unselected it at some point in the logged fields. I know this would make things harder to diag.
Re: inj duty cycle issue possibly
I should also add that I changed warm up and enrichment settings in the very last column from 102 to 100 last night not sure if it's saved into that tune or not that I posted
Re: inj duty cycle issue possibly
that would be the 40* difference in air temp
Re: inj duty cycle issue possibly
Ah okay I didn't think it was going to make that big of a difference though. I thought that could be it but I just wasn't sure