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Any HD mechanic will tell you that you lose MPG when you up the power. Maybe these guys who claim to have the same or better know something nobody else does. Maybe living at higher altitudes helps a bit...not trying to start a fuss here...it just don't add up.
I am not doing any more modifications to the performance beyone Stage 1. I wanted that sparkle back that I felt on my RoadKing and the Dyna before.
I just switched over to an improved mileage map from Jamie at Fuelmoto and took the bike out for a nice 60 mile cruise. Guess what?????? The mileage is back to where it was pre-Stage 1, plus the sound and performance and still there. Its the perfect combination. I will keep an eye on it for a few tankfulls, but the "good" MPGs seem to be back and I am one happy camper.
I am not doing any more modifications to the performance beyone Stage 1. I wanted that sparkle back that I felt on my RoadKing and the Dyna before.
I just switched over to an improved mileage map from Jamie at Fuelmoto and took the bike out for a nice 60 mile cruise. Guess what?????? The mileage is back to where it was pre-Stage 1, plus the sound and performance and still there. Its the perfect combination. I will keep an eye on it for a few tankfulls, but the "good" MPGs seem to be back and I am one happy camper.
I would recommend the upgrade.
It takes a higher fuel/air ratio to make more power ( more fuel, more air ). But if you can honestly say you are now getting the same while still getting more power then I need to look at these new maps to see how they do it. I'm not a mechanic, but the guys that do this day in and day out say you lose a bit of MPG. No one has stated otherwise. Maybe you are not getting the same HP with this improved map, have you checked?
It takes a higher fuel/air ratio to make more power ( more fuel, more air ). But if you can honestly say you are now getting the same while still getting more power then I need to look at these new maps to see how they do it. I'm not a mechanic, but the guys that do this day in and day out say you lose a bit of MPG. No one has stated otherwise. Maybe you are not getting the same HP with this improved map, have you checked?
tmblweed,
My friend, I am no tuner, not even close, but I do not notice a perfomance difference between the first map and the improved MPG(mileage) map. All I am saying is after the Stage1 I did notice the drop in MPG, thus the call to Jamie. The new map places me back in the 40 range like I was before.
Did I lose 3-4 MPG between stock and stage 1....I would have no way to confirm or deny.....but I can tell you now, it is back up to the decent range.
I think that there are too many variables, gas, wind, weight, weather, ect for me to drive the 3-4 mileage up or down either way, I just wanted to be away from the 30 range.
It takes a higher fuel/air ratio to make more power ( more fuel, more air ). But if you can honestly say you are now getting the same while still getting more power then I need to look at these new maps to see how they do it. I'm not a mechanic, but the guys that do this day in and day out say you lose a bit of MPG. No one has stated otherwise. Maybe you are not getting the same HP with this improved map, have you checked?
The difference is throttle position. Power setup 40% and up. Mileage setup below that. Also RPM based...3000 and below or so is mileage setup for me. So, Higher AFR's for me in 40% and 3000 RPM and below. Everything else is lower AFR's for power. That way I have both and at WOT I'm running the same AFR's you see on the dyno sheets with higher numbers. Yes I did put it on the dyno to check it. And I range around 41-47 MPG depending on the wind, etc. YOU CAN HAVE BOTH
The difference is throttle position. Power setup 40% and up. Mileage setup below that. Also RPM based...3000 and below or so is mileage setup for me. So, Higher AFR's for me in 40% and 3000 RPM and below. Everything else is lower AFR's for power. That way I have both and at WOT I'm running the same AFR's you see on the dyno sheets with higher numbers. Yes I did put it on the dyno to check it. And I range around 41-47 MPG depending on the wind, etc. YOU CAN HAVE BOTH
Well, thanks for the education...when you go easy on the throttle you get better gas mileage. I would like to do a stage one setup so maybe I'll look into this. Thanks
I want an Ultra Classic mainly because I've always ridden fully dresses touring bikes. I'm about to go nuts not having a good sound system on my RKC and I'm not mounting any Hog-Tune what ever. I had an Ultra Classic for a short time until a friend talked me out of it. If I get another one he's SOL. I like my music but that not the only reason. I've been also use to having a CB radio for many years. The Ultra Classic is a far more comfortable long distance ride than any Goldwing I've had.
On my ultra around town the fuel economy dropped by about 20%, But I have found on the highway it is pretty darn close to what it used to be but for the difference of a buck or two in fuel used I would take the throttle response and sound any day.
I don't base what I drive or ride based on MPG. I do not base any modifications I make base on MPG either and I sure as hell do not ride a Harley becasue it gets better MPG than the next make. I am not enviromently friendly or "Green" in an definition of the word, so I say screw the MPG and have some fun. This is still America, for a little while longer anyways, so have fun while you still can.
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