2 topics: Why can't a tune be made for the lie-o-meter and... - Ford Powerstroke Diesel Forum
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Old 09-22-2010, 02:04 AM
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2 topics: Why can't a tune be made for the lie-o-meter and...

what's up with these huge MPG increases so many talk about?

1: It would seem that a lot of work/brain power goes into perfecting tunes, etc. No doubt some talented people doing this. How hard would it be to package a tune that made the lie-o-meter read reasonably close to realistic? Absolutely can't be done or what? I would pay a fee to have a tune for lie-o-meter accuracy!

2: Been rolling with H and S mini for a good while now. I can't milk much MPG's out of the 6.4. Have played with different tunes, etc. No big increases whatsoever. I can and do stay out of it so that's not the case. What are some of you REALLY seeing for MPG?

DPF/DOC delete/H-S Mini/air intake on my truck.

Love the truck and the power. Any input to the above questions and comments greatly appreciated.
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Old 09-22-2010, 08:19 AM
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Not seeing the big increases in MPG here either.

I would also like to see the lie-o-meter work. How hard could it be to make it work?
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Old 09-22-2010, 09:02 AM
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I am also wondering about this MPG increase i see people on here saying they get 16MPG, well what are you doing differently then some of us? I am seeing about 12 MPG if i am lucky, i have DPF Delete/S&B Intake/Edge. is it my programmer that isnt helping me or what is it exactly? Any ideas on this.
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Old 09-22-2010, 09:22 AM
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Running the 275 Spartan tune I get 12-13 mpg empty and if it happens to be all highway then I get really close to 14. This is all 70 mph and less. Towing a trailer I normally get 10-11. This is with the truck in my sig. My lie-o-meter is way off with the bigger tunes (like 5 mpg off) and its a little closer on the smaller tunes.
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Old 09-22-2010, 10:07 AM
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How could the tuners claim better milage if the lie-o-meter was made to tell the truth?
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Old 09-22-2010, 10:31 AM
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Quote:
Originally Posted by Black Power Stroke View Post
Not seeing the big increases in MPG here either.

I would also like to see the lie-o-meter work. How hard could it be to make it work?
I'm not sure if it's in the programming of the computer end of how it computes, or if the problem lies in the mechanical measurement of fuel left/miles accrued. Ideally the sensor in the fuel tank would continuously measure the amount of remaining fuel down to hundredths of a gallon, then use the odometer to do the math. The trouble is in the constant small-scale measuring of fuel that is splashing around in such a large tank (as I understand it). Especially problematic are the "current MPG" computers vs the more often seen "average MPG" ones.
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Old 09-22-2010, 10:46 AM
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Quote:
Originally Posted by brmpipes View Post
How could the tuners claim better milage if the lie-o-meter was made to tell the truth?
Not sure but my lie-o-meter said I got 36 mpg but it was only 15 hand calculated. This was all highway.
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Old 09-22-2010, 02:00 PM
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Once I installed my tuner, dpf/doc delete I reset the MPG meter and just let it keep calculating. If you reset on every tank I think it gets overly optimistic. I have 3.55 gears and stock tires on my truck and am seeing a true 20 MPG. I tow for a living and have a pretty light 2 car low pro trailer, I also keep my cruise on 60 MPH despite being in higher speed limits. I'd say slow it down a bit and if you're geared high try getting bigger tires to offset gearing.
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Old 09-22-2010, 04:29 PM
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I went from 12-13mpg stock to 15-16mpg on Spartan 250. Got 17mg coming home from FL over the summer. Lie o meter isnt even close, i track it on my iphone with AccuFuel app

Anyway, the fun I have with the 250 more than makes it worth it...lol
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Old 09-22-2010, 04:32 PM
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Send a message via Yahoo to Dave
Guys tuning isnt the only factor that effects MPG. Im betting most of your right feet got heavier with the newfound power as well
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