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      06-19-2013, 12:40 PM   #21
Mike@N54Tuning.com
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Drives: 2007 335i, 2015 M3
Join Date: Dec 2008
Location: N54tuning.com

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Without meth you are a bit limited in what you can do. 60-70% E85 is normally suggested instead of 100% E85 for those looking for a max effort as its enough to max out the system and keeps some stress off the fuel system. If you happen to have meth then you'll pickup some addl power from the lower intake temperatures and less IAT based timing reduction. Since you are a manual trans using no lift shift things are a bit different as well compared to say an automatic trans with regard to timing post shift. Overall your map 7 logs using E60+ look fine to me. If you really want more power you're going to need larger turbos.

In terms of what the N54 is capable of stock turbos I think 460rw is really the upper limit. You might be able to run 16.5degrees of advance on a single gear dyno but as soon the transmission shifts the DME is going to drop that down significantly. I'd love to see someone with a log holding 16.5 degrees of advance post shift just to know if its even possible.

Mike
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