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[tc2728]

Has anyone found a good way to improve the milage. I have had 3 SE's (both 04's and now an 05 FLHTCSE2 and none have done very well. About 160 miles per tank. I have a friend with the 03 RKSE and he can get 205 per tank.
On one of my 04's I installed the race tuner and the other I had a stage one download (the 103 standard download) and they were the same. I think this new 05 is strong running but about the samew on fuel. I have the true duel rhinhardt pipes with the SE breather and the stage one download. I need som distance for my type of ridding.

Any ideas?

[Twolanerider]

With only limited sampling so far mine's doing approx 41 when on roads that force running in the 55-65 range.  Doing about 35-36 when on roads where it can run 80.  So I guess the best suggestion for increasing fuel economy is to ride slower  [smiley=nixweiss.gif] ?

[JCZ]

tc2728 you're getting better than me on a tank of gas.  On my 01 Ultra Classic I used to get about 160 or 165 miles to a tank on the 04 SEEG I get about 140 miles to a tank.

[Tony - www.1700cc.co.uk]

With only limited sampling so far mine's doing approx 41 when on roads that force running in the 55-65 range.

[Twolanerider]

Ride slower? You can't be serious.

Ok then, let me advise and extend my remarks to have said:

Well, you could ride slower, but finding a hellish tailwind is a lot more fun.

[MAS]

TC2728,

I can say that at first I was shocked that this heavy bike with a big engine did not get better gas mileage. When my bike was bone stock I noted 180 miles on about 4.7 gallons. When I installed the Power Commander along with the SE air cleaner and performance mufflers mileage went down to about 150 for the same tank of gas. I think the map I chose was a bit rich. Now I have taken off the Power Commander and am using the HD race tuner with the appropriate map and the bike is back to running a bit lean and I got 169 miles on 4.8 gallons. However, my riding has all been under 4000 rpm and 70 miles per hour as I am still breaking in the motor. I did notice that my Big Dog got better gas mileage once the engine was broken in, don't know if that will happen with this bike.

[kbiforce]

You are so right on the PC map being rich. I've gotten 41.5 riding below 65 but average about 36 -38 normally. Leaning out the mid range two bars helped a bit. Now I have also leaned out the low range 2 bars and am trying that. Strange that it starts better hot or cold now. I think Dynojet needs to fine tune the map for the 103.

[MAS]

kbiforce,

I am curious, what map are using on your PC? One they offer or a custom? I could only find a couple that were for a SE 103, so I chose m807-127 which is for a 03 road glide with a SE103,  SE air cleaner and a Vance and Hines 2 into 1 pro pipe. The m807-126 was for the same bike but with stock mufflers. These were the closest to my set up so I chose the one that would give more fuel.

[kbiforce]

I used the 126. I have the high flow and SE performance mufflers and it was still too rich. Now I think it's pretty close. Will have to recheck mpg.

[mr_magoo]

Have somebody dyno tune the bike they will be able to adjust the air fuel mixture for you so you get optimum feul economy.  I have freedom pipe, screamin eagle air filter, and a power commander.  When running with a group 60-75mph get 48mpg,  when I'm on it alot or push the speed it drops to 37-40mpg.

[tc2728]

With my history and thanks to everyone for their input, I think I will stay where I am. If I were going to make any change I would go back to the HD Race tuner and get someone to Dyno it.

Thank to everyone for your input!

[h2oski]

You could always try a one of these.  I know a guy that put one on and is very happy with it.  It is a little pricy, but not having to dyno tune your bike will save some of the costs over a race tuner.

url/http://www.daytona-twintec.com/TCFI.html

[the O`Fender]

You could always try a one of these.  I know a guy that put one on and is very happy with it.  It is a little pricy, but not having to dyno tune your bike will save some of the costs over a race tuner.

url/http://www.daytona-twintec.com/TCFI.html

These guys keep pushing the release date back for a product that will work with the 04 electronics (I called them in May they told me it would be available in July) I wouldn't want to be the first kid on the block with a faulty product and a company that tells me the update/patch is just around the corner (that corner could be months away)

[soups7]

My '03 SERK would be 40 miles past dry at 205 miles. Avg. 32-33 mpg at 3000-3500rpm. Best ever 37.5, worst 28.2. 2001 RK got 40-41 under same conditions.