[Daschicken]

Two fills with the new mods installed, 75 and 73 MPG.

I think it is safe to say that the new cams are not helping without a tune. As I have said before, this bike unfortunately has an open loop fuel system. This means that the FI runs off a programmed map rather than reading an O2 sensor and adjusting the mixture on the fly. What I have done here is allowed less air into the engine, but shifted the power down lower. This means that the bike is running richer, but I can hold gears slightly longer. Potentially needing more throttle to accelerate. So really I am using more gas right now.

It would be interesting if I could get my hands on a V strom ECU, I wonder if the rest of the bike will play nice. Otherwise I am looking at getting a Teka SFI tune to lean out the fuel maps. As opposed to a powercommander, the Teka reprograms the existing ECU. This should eliminate any potential reliability issues like what I have heard with powercommanders. I may even be able to get the idle speed turned down with the tune, it sits at 1,300 RPM right now, I think it could be dropped to 1,150 without issue.

Other than the cams, I have no reason to believe that the other mods are not helping. I should check the spark plugs again, plus compare them to my brother's stock SV.

These cams fall into the category of competition/range extension/environmental savings as opposed to cost savings. I suspect the tune will override any cost savings from improved fuel economy, but who knows. We will see!