Upgrades and Aftermarket - 7.3L EngineUpgrading and adding aftermarket equipment to your 1999-Up Super Duty or Excursion with 7.3L Power Stroke diesel engine. Please confine discussion of topics in this forum to those items that are specific to the 7.3L Power Stroke engine.
More information needed on vehicle and type of driving> I have also noticed a differance in MPG from state to state because of different additives used in the diesel. So your location might help also.
__________________
2003 EXCURSION EDDIE B, 7.3 PS, 4" Magnaflow Turbo Back exhaust with International up-pipes. BD-Power X Monitor, AFE Stage 2 and Edge Evolution. 6.0L Trans Cooler. JVC DVD head unit with 6 Boston Pro series speakers, Rockford Fosgate 12" sub and amps. Oh ya, AC power for the Blender.
I have a 03 Ex. That is what we get around town. But we are on the San Francisco, California peninsula. That means a lot of hills. Up and down no matter where we go.
Are there any mods done to it yet? Before a suggestion as to what can be done to improve it a list of what has been done could be helpful. You might want to put a signature together for everyone's review.
See scrumn6guns and my signatures for examples.
__________________
'03 Excursion, 7.3L, 4X4, 4" MBRP exhaust, TS performance chip, K&N FIPK w/ an Amsoil EA filter, Hellwig anti-sway bar, drilled/slotted front & rear rotors. Bilstein shocks, Rancho steering damper. Airlift 5000. This baby surprises a lot of, so called, performance cars.
'04 F 350, extended cab, 6.0L, FX4, manual tranny, 4" MBRP exhaust, Bully Dog Triple Dog downloader w/ Outlook moniter, 2m-70cm Yaesu ft-8500.
'96 Mustang Cobra convertible, B&M short throw shifter, Koni adjustable shocks, viper chip, drilled/slotted rotors front and rear, rear sequential turn signals.
I average about 12 as well, I dont know what you have done but obviously my lift and tires dont help, plus I dont drive like an old lady and im guessin you dont either so that uses a lil more fuel but its totally worth beating young guys in a civic if I take long highway trips i can get up to 18 a gallon
__________________
1999 7.3l F350, 6 inch Skyjacker Lift, 37.5" parnelli jones dirt grip tires, 4 inch straight pipe, Turbonetics 11266 stage 2 turbo, boost to 52.3 lbs, superchips programmer, stage 2 160cc injectors, cold air intake, HPFP 60 psi fuel pump, boost egt and tran temp pillar gauges. more to come!!
I get about 14 around town or highway, towing I get about 11 around down or highway. And that's with my lift and skinny 36" tires.
__________________
'02 F-350 "Babe The Big Blue Truck" 4x4, Ext. Cab, 8' bed
DP-Tuner 80T, ATS Compressor housing, DIY intake, openair CCV, 80HP 'pane shot, SBC DD all ceramic clutch, ISSPRO boost/pyro gauges, 4" lift, 255/70R22.5 tires, brake linelock, 16 flashy lights, 12 strobes, 12 switches on console, 9 switches on the dash, 7 two-way radios, 5 air horns, laptop, siren, 105 gal. in-bed fuel tank, and who knows what else... oh and a Kennesaw Mountain front bumper (now tried and true)
'66 Bronco "Big Little Monster" - 5.0L EFI, AOD, D20, 3.5" WH sus. lift, 3" body lift, 35" BFG muds, Stock Dana 30 front with Lock-Rite, disk brakes, Warn Hubs, Stock Ford 9" rear with mini spool
I get about 14 around town or highway, towing I get about 11 around down or highway. And that's with my lift and skinny 36" tires.
Not any freeways on the island so mostly 45mph with some stop signs and hills. Average about 14 mpg with occassional trailer tows in the superduty. Average closer to 18 mpg with the 6.9 but it is a couple thousand pounds lighter.
We get about 12mpg around town - that's flat land at 40-45 mph speed limits with several stop lights and signs. We just got back from a several hundred mile round trip through the desert and mountains and averaged 16.5 mpg.
That's the best I've seen from this Excursion. Was hoping for better when I bought it, but love it none the less!!
__________________
Michael 2000 7.3 4x4 eXcursion 56K Miles
Mine since July 2, 2009 at 53.5K Miles
Autometer Gauges (EGT, Trans Temp, Boost, Air Pres.) -- AIS (Severe Duty) -- BFG AT Tires (285/75 R16 BFG AT Load range 'E') -- Harpoon Mod -- ITP 7.3L Fuel Tank / Pre-Pump Kit (aka Hutch Mod) -- Boost Fooler -- On Board Air (Extreme Aire w/ 11 Gal. Tank)
I get around 14 city and between 17 -18 on the highway..... Where you are at is important, I don't know for sure (I live in FLA.) but the northern states might be switching over to winter blend fuel, which reduces MPG.
__________________ I have a philosophy? Who knew. Ok, where's the beer?
2002 F-250 XLT CC SB\HPX\ITP prepump mod\Harpoon\DI 65psi fuel shim\4" SS turbo back Magnaflow\Fumoto\FTVB\Edge Evolution2\Zoodad\2008 Diff cover
I get 19 overall mixed city and hwy in the winter and 20 MPG mixed city/highway in the summer. That mileage is with a bone stock truck, easy driving style, no lift or oversized tires with the 6 speed manual trans. I believe the auto trucks get slightly less MPG than than a properly driven 6 speed manual. Autos absorb a bit more energy through the trans than a manual.
However, I just installed an Edge Evolution which should boost those MPG numbers conservatively to at least 1 MPG higher given the same style of driving.
The AutoGuide.com network consists of the largest network of enthusiast-owned enthusiast-operated automotive communities.
AutoGuide.com provides the latest car reviews, auto show coverage, new car prices, and automotive news. The AutoGuide network operates more than 100 automotive forums where our users consult peers for shopping information and advice, and share opinions as a community.
if I take long highway trips i can get up to 18 a gallon
Linear Mode
