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Old 08-10-2018, 09:54 PM   #51
alf
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Quote:
Originally Posted by steve99 View Post
It limited what you can do with tune to accomodate such poor fuel as 87 on a 12.5:1 motor. Will need to look at knock under different conditions ond evaluate. The best option woild be to run 91 as a minuim.



I also suspect 87 will not only be lower octane but also lower quality in other terms like additives and deposits as well


I do have concerns with running poor fuels through complex modern fuel systems like this with direct injection



Its certianly not someting id recomend people do

Steve,
I am totally aware of the risks. In fact I am quite familiar of one of results of knocking often mentioned here https://forums.nasioc.com/forums/sho....php?t=2401576



However the reward is bigger for me here and than a potential risk, which I will do everything to mitigate. Hoping that octane boosters will be effective, which I will test.



As far as 91 vs 93, all we have in south west is 91. Not sure why.


One thing which I am confused is how to see knocking in data logs. I could not find a direct counter. I only see:


Knock Correction (FBKC)
IAM
KC Learned
FLCK

and apparently I have to derive actual events from this like here: https://datazap.me/u/yamadawg770/log...12&mark=89-137
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