M8 Fuel consumption?

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Dec 25, 2020 | 06:42 PM

#21

HuntWhenever

Road Warrior

Joined: Nov 2018

Posts: 1,302

Likes: 865

From: SW Ohio

Just to add to the info...

2019 Sport Glide, bone stock 107, 30k miles. I average 42-44 MPG between light city, some backroads (running hard...full throttle a lot) , and lots of interstate. If only 55 MPH roads, I get 50-52 MPG. Running 80 MPH out on the interstate I usually get 38-40 MPG.

Dec 25, 2020 | 11:25 PM

#22

Stormin70

Tourer

Joined: Nov 2019

Posts: 484

Likes: 277

From: Apex, NC

I have a 2018 Fatboy 114 with 5k on it. I have a full Stage 1, and even riding hard on back roads I get about 45 mpg.

Dec 25, 2020 | 11:26 PM

#23

Chillis

Cruiser

Joined: Sep 2019

Posts: 120

Likes: 85

From: Vegas

Quote:

Originally Posted by Ramimator

I thought so, I should pay a visit to the dealership, I just wanted to have opinions before they say “it’s normal”

You are getting half of what you should.

'19 Fat Boy 108 40 to 55 mpg SE Stage 1
'19 FXDR 114 Stage 1 SE parts, FP3 tuner 40 to 50 mpg

Dec 26, 2020 | 05:42 AM

#24

Ramimator

Thread Starter

Intermediate

Joined: Nov 2019

Posts: 33

Likes: 4

From: Belgium

Quote:

Originally Posted by HuntWhenever

okay that’s like double of what I actually get

Quote:

Originally Posted by Stormin70

I have a 2018 Fatboy 114 with 5k on it. I have a full Stage 1, and even riding hard on back roads I get about 45 mpg.

yeah, I suppose now that this is the average which I hope I will get out of my bike

Quote:

Originally Posted by Chillis

You are getting half of what you should.

'19 Fat Boy 108 40 to 55 mpg SE Stage 1
'19 FXDR 114 Stage 1 SE parts, FP3 tuner 40 to 50 mpg

exactly I am getting just half

I am wondering now what the issue is, to be able to guide the dealership, so they don’t have to find excuses. I know it could be many things that causes this, any idea? Where to start?

thanks mates for all the infos ✌🏼👍🏼

Dec 26, 2020 | 07:53 AM

#25

GalvTexGuy

Seasoned HDF Member

Joined: Apr 2015

Posts: 10,067

Likes: 5,320

Did you monitor your MPG before doing the Stage 1?

Are you using a tune specific to your mufflers and breather?

If not and it's a "generic" tune, have you tried a different tune?

Dec 26, 2020 | 08:32 AM

#26

rigidthumper

Grand HDF Member

Joined: Jul 2007

Posts: 3,740

Likes: 8,536

From: Bates County MO

Can you post your current PV map? Maybe we can see something in the settings that is off?

Dec 26, 2020 | 01:32 PM

#27

Ramimator

Thread Starter

Intermediate

Joined: Nov 2019

Posts: 33

Likes: 4

From: Belgium

Quote:

Originally Posted by GalvTexGuy

Did you monitor your MPG before doing the Stage 1?

Are you using a tune specific to your mufflers and breather?

If not and it's a "generic" tune, have you tried a different tune?

Yes, I did use the “right” one for my setup, s&s mufflers and s&s A/C. Even when the bike was stock I never reached these numbers you guys mentioned

Quote:

Originally Posted by rigidthumper

Can you post your current PV map? Maybe we can see something in the settings that is off?

Here’s the actual file of my last autotune I couldn’t upload it here so I made a google drive link :
https://drive.google.com/file/d/14wb...w?usp=drivesdk

Thanks ✌🏼

Dec 26, 2020 | 02:00 PM

#28

TwiZted Biker

Club Member

Joined: Mar 2009

Posts: 66,125

Likes: 51,446

From: Niles Canyon Ca.

My 17 107" gets around 37 average and most of it is 55 and under riding, urban commuting.

Edit, has an Eliminator AC and fuel motto slip-ons other wise bone stock.

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Dec 26, 2020 | 02:04 PM

#29

rigidthumper

Grand HDF Member

Joined: Jul 2007

Posts: 3,740

Likes: 8,536

From: Bates County MO

Requested access

Dec 26, 2020 | 02:28 PM

#30

rigidthumper

Grand HDF Member

Joined: Jul 2007

Posts: 3,740

Likes: 8,536

From: Bates County MO

Nothing too wonky looking at the map- auto tune is adding 18-28 in some areas, no issues there, as they're mostly decel.
How many miles until the lo fuel light comes on ( at that point, you should have about .8 to 1.2 gallons left)?
How much does it take to fill it back up?

Last edited by rigidthumper; Dec 26, 2020 at 02:36 PM.

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