From what I'm finding out from people that DO run the straight 110, with zero mix is that 11-13 lbs is where these machines want to run well.
Of course it also has to do with system design, state of tune, static compression, fuel mapping, charge temps etc... all of those will raise or lower the Octane dependency levels.
This is simply a 'rough idea' here that will, hopefully, shed some light on this topic outside of speculation and unsupported rumor.
Less than than that and they get Spongy on the throttle response as well as other "over octane" issues, more than that and deto problems start to pop up.
IMO, the reason to run AV gas would be, in large part, to avoid the ethanol in pump fuel and avoid the high cost and logistics of Race gas.
For those reasons, running it straight, Zero mix, seems to have advantages... BUT, and I know this cuts into the ego a bit, 11-12 lbs of boost will require a VERY skilled rider to pilot the sled in technical situations... Many riders just are not up to this level (yet) (me included)
IMO, Mixing AV gas with pump fuel will give you back some of the throttle character that we all like, but not get rid of the ethanol problems that are causing issues in our power sports equipment.
The weak link is Crappy 91 pump gas with ethanol and/or other poor performing oxygenates in it.
It would be nice if one of the race gas suppliers could provide a good quality, 91-94 octane (R+M/2 rating) that was designed for power-sports equipment, no-lead added, no oxygenates/ethanol AT a Reasonable price... VP and Sunoco both make this type of fuel but it actually costs significantly more than 110 Leaded Race fuel!!
There is no real easy answer here.
