Fuel mileage increase - Victory Forums - Victory Motorcycle Forum
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post #1 of 19 (permalink) Old 12-15-2010, 06:11 PM Thread Starter
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Fuel mileage increase

I have a 2011 XC with naybe 2,000 miles. Very slighlyt modded exhausts, and the HP air cleaner. One of the things I noticed immediately was the combination of a low fuel light coming on too soon, coupled with rather poor mileage, 32-36 or so. I added a Power Cammander with auto tune (I plan to get Lloydz cams) and although it seemed to run a little better the mileage stayed the same.

My buddy Marc has a 2011 Vision, and he was getting about the same mileage (identical set up as mine).

The issue for me was range on a tank. I want over 200 miles. After I whined enough, Marc contacted Jamie at Fuel Moto (where we purchased the PCs) and asked if he could supply us with different maps. Jamie did (for free) and leaned out the AF ratios at lower throttle and lower RPMs. The auto tune then adjusts to these settings.

I have run two tanks of gas thru it, one in the mountains at 43mpg, and another on the freeway at 80, with some headwind for part of it, at 36 mpg. So far, about 5-6 mpg increase

Marc has noticed the same increase.

I realize some of you are getting better mileage than this, while others seem to get much worse. Just fyi for those of you who might want better mileage. particularly if you have a PC..

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post #2 of 19 (permalink) Old 12-15-2010, 06:36 PM
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Jamie (fuelmoto) has a life policy for maps for the life of the product and he also (unless these are different) has a 2 year warranty instead of 1.

If you have a laptop you can you can use the PCV disc to make AFR changes. I do not think you can change the timing with the freedom engines. I could be wrong.

PCV W/AT is what I will do later on. It really improved the throttle response didn't it. That was the first thing I noticed when I added it to my Ultra Classic. You can also run 2 different maps with the AT with a switch. 1) performance 2) mpg-touring. Change by push of a button.

Glad it worked out for ya.
Good decision as far as I am concerned.
It took me about 1 hour to do my Ultra

dd
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post #3 of 19 (permalink) Old 12-15-2010, 07:14 PM
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You have to be very careful getting a map that is going to lean out the bike. Leaning can lead to internal damage.

I'm sure Kevin could elaborate on this whether or not its a good idea on the newer bikes.
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post #4 of 19 (permalink) Old 12-15-2010, 07:24 PM Thread Starter
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Couldn't agree more. That's why I was pleased that Fuel Moto did it for us.

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Originally Posted by diamondrmp View Post
You have to be very careful getting a map that is going to lean out the bike. Leaning can lead to internal damage.

I'm sure Kevin could elaborate on this whether or not its a good idea on the newer bikes.

Multiple Bike Disorder:crzy:
2011 Cross Country:D
2006 Suzuki Burgman 650
2007 Harley Dyna
1976 BMW R75/5
1971 BSA Lightning
1947 Harley 45
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post #5 of 19 (permalink) Old 12-15-2010, 09:10 PM
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This is a cool feature with the PCV You can check everything with a laptop.
No special tools needed.
Share what he changed the AFR from/to.
May help others down the road

I have been searching for the limits on the freedom engine but haven't found much.
On a 96 ci HD you can go to 14.6:1 and be safe I run mine at 15.2:1 and get around 44 mpg
You never want to lower it without researching.
dd

Last edited by dirtdobber; 12-15-2010 at 09:26 PM.
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post #6 of 19 (permalink) Old 12-16-2010, 09:21 AM Thread Starter
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DD, as I recall, at lower RPMs and partial throttle openings, the AF ratios were increased from 13.2 to 14.2. I don't recall much higher than that. My buddy Marc is way more knowledgable and he actually checked all the ratios and showed me how ro install.

I check the maps later today or tomorrow...I want to trim it anyway.

Multiple Bike Disorder:crzy:
2011 Cross Country:D
2006 Suzuki Burgman 650
2007 Harley Dyna
1976 BMW R75/5
1971 BSA Lightning
1947 Harley 45
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post #7 of 19 (permalink) Old 12-16-2010, 10:51 AM
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That would be great. It could help some that are using the PCV later on, like me.

Changing AFR from 13.2 which is really lean to 14.2 would be increasing fuel which would be richer.
The low setting for a 96ci HD is around 14.2 minimum and still be safe.
I am learning about the Victory Freedom engines. Not much information out there unless you contact a supplier that knows what he is doing.

Again thank you for your response.

dd
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post #8 of 19 (permalink) Old 12-16-2010, 01:21 PM
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Hey you will get better millage when it get broken in. New bikes are poor for millage but when you get to 5 to 7 thousand you will have more power and some what better millage.
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post #9 of 19 (permalink) Old 12-16-2010, 02:00 PM
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I too have found many ways to increase the MPGs. One that works great is keeping your throttle constant instead of jacking it wide open every 5 seconds. No programming skills necessary.

Someone needs to get their bike firing on one cylinder only and see if that yields a MPG increase. dancing.gif

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post #10 of 19 (permalink) Old 12-16-2010, 03:25 PM
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Quote:
Originally Posted by CrossRoads View Post
I too have found many ways to increase the MPGs. One that works great is keeping your throttle constant instead of jacking it wide open every 5 seconds. No programming skills necessary.

Someone needs to get their bike firing on one cylinder only and see if that yields a MPG increase. Attachment 1234
CrossRoads one cylinder???? you break your bike don't ask us to
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