Quote:
Originally Posted by F32
Wanted to resurrect this post because I found it interesting...was this car a manual or auto? I'm curious to see updated VBox figures as well. I'm sure the Stage 2 tune has been tweaked a bit since March, so that alone should be good for 12s at 110+. With a turbo-back on top, this setup should move.
I'm curious what the limiting factor is for testing on a higher mix of E85. Is straight E85 in the tank out of the question or perhaps too risky for the fuel-system?
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Hopefully I can answer your question a bit...my car is completely stock with the exception of the JB4 Stage2. I have tried Map1/Map2/Map7...
To get to the desired 100oct to run Map7, I mixed my 91oct with 45-50% E85 (~105oct) as recommended. I can't speak for the N20 engine, but the N26 that I have will not successfully work with a 45-50% E85 mix while close to or at WOT. The engine hesitates, studders, and bogs down. To troubleshoot at the time, I switched to Map2 and then Map1, all Maps had the same problem. Once I filled up again, I blended my 91oct with enough E85 (roughly 15%) to get to 93oct so I could run Map2. Once I did this, all problems went away...this applies to Map1 as well. In the future, if I would like to run Map7 again, I'll have to fill up with 100% (traditional) 100oct.