I took a trip to New Orleans this past weekend. 186 miles and 4.56 gallons to fillup on the way back the wind was brutal 164 miles and 4.83 gallons running 70 - 75mph

 

My MPG sucks when i run Interstate...when i say sucks i mean low 40's...I use to get close to 50 MPG if i ran 60 on a long haul on side highways but since the changed my download for a problem i was having i only get about 45 MPG on long hauls....Hey as long as it's over 40 MPG i am happy. Getting ready to put stage I breather and another download to get a bit more power.

 

Hey WiredWilly, in you Bike picture...Did you bike take a **** or was it just happy to see you??? LOL.

 

I wish I could see 40+ mpg. I average 34-36. get on the interstate 75-85 and at 150 miles the lite is on. pisses brothers off cuz they do not need gas yet. But after doing the cams the milage increased to about 39 if I stay out of it.

_____________________________
07 Ultra, rinehart td's, sert, se a/c
S&S gear drive, 26 andrews

 

Hey Wiredwilly, you should get between 45 and 50 mpg on that bike. That was what I was getting on it before I traded it in at Cajun HD.

 

My RK was getting 49 hwy riding solo all the time with the Stage 1 download. Now with the PC III I get about 46 solo.

 

Dan1551,
I think you may have things backwards. Typically, the Stage1 download (as well as after market ECU's) will help you make the engine run a little richer and therefore COOLER. A COOLER engine runs far more efficiently. HOWEVER, the extra fuel (along with decreasing mpg) also increases exhaust emissions which is why HD makes their bikes run so lean from the factory. For me, I'm satisfied with the factory setting because I spend most of my time on the expressway, so cooling isn't much of a problem.

Ben

 

Disagree with that... My dealer says the stage 1 D/L only increases the rev limiter and does nothing else...He doesn;t even push it, he tells people not to waste thier money.....

So I'd find it safe to say the problem is not the D/L....

my .02

 

Did a 98" Millenium cylinder job on mine, along with woods gear drive cams, S&S gear drive, GMR head work, Wiseco moly pistons 10.5:1. Went up one tooth on the front primary sprocket and put in a 6 sp OD gear set. Has a SE air cleaner and V&H duals with fishtails. The PC III had the map from before the above work, which was way TOO lean after the engine build. Had to add NOS octane boost to make it rideable, but got 44-48 mpg at that time. Finally got around to getting it on the dyno and custom mapping the PC. Adjusting the AF required adding a lot of fuel at all throttle positions at all RPM ranges. Result was that the bike runs superb, and has a very wide, flat torque curve (108 ft lbs), but fuel economy took a big hit, averaging 30-33 mpg.

 

It's always a trade-off: gas mileage vs performance vs sound vs heat. You can't win on all of these. If gas mileage is what is important to you, then leave it bone stock. The factory has already rung out all the fuel savings you could ever get.

I get "only" 30 mpg on my commute running from stoplight to stop sign. But I didn't buy a Harley to bitch about the mileage.