97gsxIA
10+ Year Contributor
- 418
- 44
- Apr 22, 2011
-
Des Moines,
Iowa
Is it possible that the knock im getting is from to much fuel in the combustion chamber?
Yes, "Rich Knock" is a thing. You'll tend to get it mainly when it dips into the 10's on e85. If its rich knock it'll go away with a small decrease in fuel in that corresponding cell, but if it doesn't disappear after that then it is NOT knock caused by over-enrichment (obviously).
If you are targeting 11-something on your DA tables and you LC1 is reading anything outside of .1-.2 of those values then something is wrong in your global fuel adjustment or the SD table and should be addressed before adjusting for any kind of "rich knock." You'll come to find out that fixing your WBfactor will, in most cases, fix detonation issues in the same corresponding areas.
I also wondering how far the walbro 450 and fic 1650 will get me before i need to go bigger on e85?
Both will tend to start running out around 60 lb/min of airflow. The pump might go to 70 if rewired and the pre-filter lopped off. 1650's will be at 85-90% IDC right around there I would think. Maybe less.
One more thing I forgot to mention the other day:
Don't do your WOT pulls in quick succession like you log suggests. Do a 3rd gear pull then stop and let it cool for a few minutes while you make adjustments, then go back at it. Then when you think everything is on the money, do a 2nd-4th pull and make your last adjustment from there.
Its all about consistency.
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