Join Date: Mar 2013
Location: Central Illinois
I have an ATS set at +3 and run 91+ octane fuel. Sometimes a tank runs as low as 39 MPG and other times I have seen it at as high as 46 MPG on a full tank of fuel. I can often identify the why behind my changes but it is never a tuning issue. If I ride a long distance with a tail wind it gets closer to the high number and with a wind from the front or local trips it will tend to the low side. My timing never changes and my O2s are always connected. In general I see around 41 MPG but riding conditions seem to affect me more than the numbers you are throwing out there. Unless all other parameters are controlled, very hard to do, I suggest that your results are meaningless. Ride a couple of months under varying conditions with each set up and I might think there is some relevance to your numbers but short uses at each condition are more or less useless data. It is well within the variation that happens from tank to tank around here.
Present ride - 2013 Victory Vision, black, ATW at +3, Lloydz air filter and adjustable intake, PC5, 30,xxx miles