low boost fueling - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 3 Old 04-10-2012, 08:21 AM Thread Starter
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low boost fueling

just installed delete pipe, xtr tuner set on mild,easy tune. what is the best setting for low boost fueling, i'm looking for best milage and i tow a horse trailer, truck stays on the pavement. what setting do you think best for me thank's guy's!!!
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post #2 of 3 Old 04-10-2012, 08:33 AM
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I am also curious about this. I know the higher the low boost the more smoke you have. So I would assume the lower you go the better MPG's but is there too low of a setting?

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2003 F-250 6.0 ECLB- [B]
-EGR Delete-Oil cooler-6.4 Banjo Bolts-WW2-turbo feed and drain lines-upgraded alternator-upgraded FICM

Previous trucks: 1997 F-350 CCLB, 2000 F-350 CCLB, 2008 F-250 CCLB
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post #3 of 3 Old 04-10-2012, 12:19 PM
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Set your LBF at -0- for the least amount of smoke...and that is close to stock. as far as LBF effecting your MPG's...it does, but IMO the trans tune also seems to effect it as well.....the best MPG i have gotten was with my LBF at -3- with the S1L trans tune....but of course it always boils down to the way you drive your truck.

2010 F-250 CC/LB H&S Mini Maxx (Mild tune on 'HOT'setting with S2M trans schedule 1/2qt over), S&B intake, CCV Mod, Flo-Pro exhaust DPF/CAT, Firestone air bags front&rear. EGR coming off sooooon..
2003 2500HD Dirtymax, Superchips OBD, AFE intake, Firestone Air bags rear, Western 8.6 plow, LED Light bar.

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