Just got my best mileage in 7.3 - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 32 (permalink) Old 03-06-2011, 09:12 PM Thread Starter
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Just got my best mileage in 7.3

Went ny to fl and averaged about 19.3 at 72-75. At 65, for 300 miles, i got 20.9. This is hand calculated. The difference is my new php 80dd. I gained an additional .5-1.0 over my previous program.

2002 f-350 PSD, 4x4, cc short bed, 6spd, ccv mod, airdog, AIS filter, isspro ev and scangauges, detroit TT, ITP boost annihalator, ITP RR, bellowed up-pipes, ats housing, turbomaster, 3.5 dp magnaflow, very happy with ultra smooth and linear PHP 50t, 80DD and "whisper" tunes.
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post #2 of 32 (permalink) Old 03-06-2011, 09:55 PM
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Re: Just got my best mileage in 7.3

lucky bastard! im getting 9 city 11 hwy have no idea whats wrong. truck runs great 350-400 miles to 38 gallon tank mixed driving

Rick

2002 F250 CC LB - 5" lift, BTS, 4.10s+trutrac, 250/100s, studs, pushrods, dual springs, ITP RR, 2 SD pumps, Beans plenums, Balanced, Blueprinted and cryod bottom, ported heads, GH 1.5 cam, 4" Exhaust, 6.0 trans cooler

OTW- S366/s483 compounds, 20x10 black hostages + 37 13.50 toyos, fresh BTS, Live tuning, And maybe an srp 1.1
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post #3 of 32 (permalink) Old 03-20-2011, 08:28 AM
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Re: Just got my best mileage in 7.3

If you have the truck listed in your sig, then there is no question as to why your mileage is so bad... 5" lift, 37" tires... I see no mention of new gears or anything. You're pretty much bang on for mileage with those kind of mods.
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post #4 of 32 (permalink) Old 03-20-2011, 08:10 PM
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Re: Just got my best mileage in 7.3

19.3 is pretty nice.
I got a best of 21 all stock and i still averaged 18 w/ 6" lift and 35's w/ the 7.3.
sounds good!

"New" 05 no payment, all original 305k and runs like a champ
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post #5 of 32 (permalink) Old 03-20-2011, 08:16 PM
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Re: Just got my best mileage in 7.3

on my 97 7.3l i could average 18mpg, with 35s but my gearing is 4.10s and i have to baby it....., but my dad has a 97 psd it was stock with an edge ez and i pulled 25mpg with it, but it has 3.55 gears and i was babying it alot lol it about how you drive it and how hard you hit the skinny pedal

2007 f250 Sd fx4
Arp's, 4"dp 5" straight pipe with 7" stack,S&B intake, no limit cold side, blue spring, 6.4 banjos, gauges, 2.5" leveling kit,sct with gearhead tunes, egr delete and coolant filter warren 175s, powermax
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post #6 of 32 (permalink) Old 03-20-2011, 10:15 PM
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Re: Just got my best mileage in 7.3

Your MPG is no mystery to me, madmaxz.

37s
5" lift
automatic
4x4

That's about what I'd expect.

2000 F-350 SC 4x2 6 speed
3.08 gears Gear Vendor Overdrive
Slammed 4"
Rugged Air Dam
315,000 miles
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post #7 of 32 (permalink) Old 03-20-2011, 10:53 PM
 
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Re: Just got my best mileage in 7.3

Quote:
Originally Posted by madmaxz View Post
lucky bastard! im getting 9 city 11 hwy have no idea whats wrong. truck runs great 350-400 miles to 38 gallon tank mixed driving
Seems a little low. My brother has Crewcab Shortbed 7.3l with 6" lift, 38x15.5x20 tires and 3.73 gears. 4x4 etc. has stage 2's and Matt's tuning.

I think he averaged 13.5 to 14 mixed highway/some city driving.

With winter fuel it hurts fuel economy also, or at least from my driving experiences it does.

late 99 black CCSB
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post #8 of 32 (permalink) Old 03-21-2011, 03:55 PM
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Re: Just got my best mileage in 7.3

Not that much
I'd think he could pull off 13-15 if he can keep the egt gauge at 450*F
or at least try to.

Dan
96 Powerstroke: 6637, downpipe to dump exhaust, 140v IDM and a shift kit.

84 Honda Sabre V65 1100: pipes, jet kit and new tires. Faster than I think I'll ever need.
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post #9 of 32 (permalink) Old 03-21-2011, 04:07 PM
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Re: Just got my best mileage in 7.3

Quote:
Originally Posted by madmaxz View Post
lucky bastard! im getting 9 city 11 hwy have no idea whats wrong. truck runs great 350-400 miles to 38 gallon tank mixed driving
Best I ever got on 37's was 18 mpg, but it was a consistent 15-17. No towing, spent 90% on the highway with stock gearing.



Nice work Clyde!! That is some pretty good numbers!
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post #10 of 32 (permalink) Old 03-21-2011, 04:37 PM
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Re: Just got my best mileage in 7.3

Quote:
Originally Posted by Dave Whitmer View Post
Your MPG is no mystery to me, madmaxz.

37s
5" lift
automatic4x4

That's about what I'd expect.
I have a 6 inch with 36s... I get outstanding mileage, but I have a 6 spd

2000 F-250, RCLB, Auto!!

Last edited by DcMoore999; 03-21-2011 at 04:38 PM. Reason: typo
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