performance
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OEM Coil Packs alternatives
Hey Guy’s - I have a 98 Expedition. I had a company out of New Jersey “Promar" build me a new enhanced 5.4. They specialize in the old 5.4 lighting engines. I didn’t go extreme, no Whipple super charger. Basically they upgraded the lighting long block with performance cams and springs / PI...- CCANDELARI
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- 98-2002 aftermarket coil packs performance
- Replies: 3
- Forum: 1st Gen Ford Expedition Engine & Performance
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My Expedition build thread
Hello all! I wanted to make a small list of the things i have been doing to my expedition and will continue to update it as I go. Day i got the expedition- oil and air filter change. https://www.expeditionforum.com/threads/tune-up.58512/#post-530801- 7/8 spark plugs, and 8 coil packs. CM5243...- NorthernExMax
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- 5.4 expedition performance
- Replies: 9
- Forum: 3rd Gen Ford Expedition General Discussion
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Tune up
I did a tune up today, had bought some “performance” motorcraft injectors for the 5.4 (was originally a mopar project but i think they were the injectors for 16+ v10s?) several years ago and they have been sitting on the shelf waiting for a viable project. Well today the spark plugs and ignition...- NorthernExMax
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- 5.4 expedition performance
- Replies: 3
- Forum: 3rd Gen Ford Expedition Engine & Performance
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R
Engine stutter during slow acceleration
1998 5.4 automatic 2wd tow package 325k mi. Only during slow petal application the engine stutters. Not enough to worry about it stalling, just jerky if petal is held in same position. Only other issue is if fuel level below 1/4 tank it will hesitate during acceleration. Two different types of...- Richard Gross
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- acceleration performance stutter
- Replies: 4
- Forum: 1st Gen Ford Expedition Engine & Performance
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J
What who did you chose for your tune?
I am planning on making some modifications to the expo here shortly and was going to start with a performance tune. Right now I am leaning toward 5-star. But I was curious about anyone's personal experience with 5-star or have preference to any other brands? Any advice/recommendations are...- Jerry Burden
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- horsepower modification performance rpm torque tune tuner upgrades
- Replies: 14
- Forum: 4th Gen Ford Expedition Engine & Performance
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EcoBoosts, Fuel, Octane, Ethanol and Tuning...
So, I am creating this thread as an education thread, and to attempt to get these discussions out of other threads... This thread IS NOT for the following things: Discussing the merits of the Turbocharged V6 vs NA V8 in the Expedition. Discussing the politics of Ethanol and EPA Numbers. This...- LokiWolf
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- ethanol octane performance
- Replies: 72
- Forum: 4th Gen Ford Expedition Engine & Performance
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Feedback on SPD Performance downpipes?
Hey All, I didn't see any reviews of these, so I thought I'd ask. Anyone have the catted SPD performance downpipes and have some sort of review. I already have the SPD turbo adapters but have yet to install them, wanted to wait till I bought the downpipes and just do both at the same time...- 5280tunage
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- exhaust gen4 performance
- Replies: 2
- Forum: Product Reviews
