2003 7.3 f550 fuel bowl delete fuel ecomomy

2095 Views 6 Replies 7 Participants Last post by greenskeeper, Feb 6, 2022

kurtackerman74

Discussion Starter · Jan 16, 2022

I have been thinking about this recently as I had a bad drain valve o rings and was leaking. Are there any benefits from removing the fuel bowl? I currently get about 9mpg pulling my trailer. My truck is completely stock with only 80k miles on it. At 65 mph my tach is about 2600 rpms as well. This truck is a 4x4 with manual locking hubs as well. Would a bank's tuner increase mpg? Or a different differential? Thanks for any and all input on both subjects.

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Jimmy's Pilot Service

· #2 · Jan 16, 2022

I can to answer the tuner portion very well other than I have seen way more folks complain about Bank's than liking it. Hydra seems to be preferred.

For the fuel bowl it is a good design if you are running mostly stock or close to it.

Others will likely chime in soon but I believe other than the Hutch/ Harpoon mod the fuel system is good near stock or so power.

As far as economy 9 mpg or so when pulling is a variable depending on terrain, environmental conditions, speed, and trailer with that you are likely doing good and changing the fuel system to chase a better burn rate on fuel is better spent on good maintenance.

Again my opinion ....

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DaveP.

· #3 · Jan 17, 2022

kurtackerman74 said:
At 65 mph my tach is about 2600 rpms as well.

You might get a kick out of this pic. The speedo is accurate. I can't do this towing my enclosed car trailer, the EGT gets too high. But with the ski boat or not towing at all, the MPG gets into the upper teens. I have a Gear Vendors.

Your 9 MPG doesn't sound that far off. Especially if you have 4.11 gears, which I think you do. I get 10-11 towing in direct drive with 3.73 gears.

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[email protected]

· #4 · Jan 17, 2022

kurtackerman74 said:
I have been thinking about this recently as I had a bad drain valve o rings and was leaking. Are there any benefits from removing the fuel bowl? I currently get about 9mpg pulling my trailer. My truck is completely stock with only 80k miles on it. At 65 mph my tach is about 2600 rpms as well. This truck is a 4x4 with manual locking hubs as well. Would a bank's tuner increase mpg? Or a different differential? Thanks for any and all input on both subjects.

Removing the fuel bowl definitely cleans up the engine valley, but it's not necessary. I have fuel bowl reseal kits, and maybe something to think about is our bowl retain fuel line kit.

CNC Fabrication 7.3L 4 line feed fuel line kit

Upgrade your fuel-system with our 4-line-feed fuel-line kit designed to eliminate the infamous #8 injector knock and fuel starvation in the #1 and #8 cylinders during higher RPMs and heavy throttle while towing.

cncfab.us

98.5-03 7.3L Alliant Power Fuel Bowl Reseal Kit - AP0007

98.5-03 Factory fuel bowl reseal kit. Kit includes: 2 seals for the fuel lines going to the heads 1 seal for the fuel supply line 1 seal for the fuel return line 2 seals for the drain valve 1 seal for the fuel bowl heater plug 1 seal for the water in fuel sensor 2 seals for the pre and post...

cncfab.us

As far as a tuner, this one is by far the most popular.

PHP-HYDRA

FREE STOCK TUNES: Your Hydra Chip comes with access to the Power Hungry Performance server by downloading the Hydraflash App at no additional cost to download your tunes. Examples of the stock tunes that already come with the Hydra Chip are listed in the table at the bottom of this page. Note**...

cncfab.us

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Smokin' Duck

· #5 · Jan 17, 2022

I have a E99 with 3.73gears. I am not in a hurry when towing. Unloaded on the highway at 65-68mph I get 19mpg. If driving at 75-80mph or mixed with city it drops to 15-16mpg. i have only been towing in mountains mixed with a little flat land, and I am at in the high 13 mpg. My trailers is about 6.5K pounds. I am hoping for slightly higher driving on the open road. If your trailer is heavier, driving faster than I do, or you have the 4.11gears you are going to lower milage.

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ryan.debok

· #6 · Feb 6, 2022

2000 Excursion 7.3 4x4 (hubs still locked in)
Interstate @ 75mph
Banks intake and exhaust
Edge tuner on tow mode
Garrett GT38P Turbo
Jasper Stage 1 Transmission
18mpg

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greenskeeper

· #7 · Feb 6, 2022

how much total weight are you towing?

9 mpg sounds about right with 4.11 gearing

thank god you don't have a 460 gasser

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