Help with E85 Timing on EVO IX
Dec 2, 2011, 07:54 PM
#31
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Looks better man. def looks like you put in some time. i sitll think you have a little bit left at peak tq and you might want to watch how lean you go up top. 12.4 is pretty aggressive.
Dec 3, 2011, 05:55 AM
#32
You already have plenty of good and accurate advice in this thread, but just to reiterate.
Instead of concentrating on any exact number, you have to find that number for your setup. You have all the tools to do so...back your timing down a lot, do a run, graph the results. Add a degree, graph the results. Rinse and repeat until you don't see any gains at certain RPM points. That's when you are at MBT for that RPM region.
To be safe, maybe then back that area down 1-2*. When you're done with that process, your entire map (at least the load/RPMS during a WOT run) will be done and at optimum timing. You can then try a few different boost levels and do the same and smooth between.
Instead of concentrating on any exact number, you have to find that number for your setup. You have all the tools to do so...back your timing down a lot, do a run, graph the results. Add a degree, graph the results. Rinse and repeat until you don't see any gains at certain RPM points. That's when you are at MBT for that RPM region.
To be safe, maybe then back that area down 1-2*. When you're done with that process, your entire map (at least the load/RPMS during a WOT run) will be done and at optimum timing. You can then try a few different boost levels and do the same and smooth between.
Thanks,
I dropped timing down about 5* over the entire curve and definetly lost power in some areas but stayed the same in others. Definetly have work to do since I was obviously past MBT at some RPM points. I'll keep tweaking it slowly.
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