Turns out that the stock injectors can support E85 once tuned correctly(around 70% IDC on 98, 89% on E85) and pending final implementation within a few weeks, the 06 onwards 1Mb ECU's will have Dual Fuel available allowing owners to run on E85 or 98. E85 so far has seen a further 18% increase in power for NA H6's(say 210Kw@flywheel on pump, then 240+Kw on E85) with improved throttle response and even further fuel economy improvements. Since the stock injectors are used, the Fuel Economy Meter is accurate, as E85 will use more injector pulsewidth showing a true fuel economy value
As part of this, will also be implementing Check Engine Light Flash on Knock detection
Hoping to get the earlier 04/05 512Kb ECU's to get a simplified version of the E85 patch but for those not wanting E85, I can load in the CEL Flash on Knock Detection patch so you know if/when you have a bad tank of fuel etc