Getting Ready to Tune My Ford Expedition Platinum Max 4X4 w/ Tow Package and 3.92 Gears - A Few Questions

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FlyBry

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Do you have any e85 fuel in your area? 50/50 e85 + 91 = an octane rating of 95.5.
And regardless of what you hear about the Gen.2 3.5 EB in a Gen.4 Expedition, you do need the JLT catch can. You will be surprised how quickly it will accumulate oil when in the boost.
Nothing in the world is wrong with 5 Star, as you will see in more member signatures than any other, and they have been strong supporters of the site.
Further, you will need the larger turbo adapters, and a high flow muffler at a minimum.
Also, trace how air enters the air filter inlet - plenty of room for improvement.
And the under hood seal removal trick helps lowering IAT considerably, you simply have to clean the air filter more frequently.
air inlet (2)_LI.jpg
 

Expedition Dave

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"For the no catch can needed crowd" engine oil in you intake is always bad. Any amount IMHO, no matter how little.
I added one since jumpstreet on my '20, and I'm always pulling about 1-2 ounces out of the can every oil change.
 

Silver-Bullet-Bus

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I have tried many, & MPT Tuning is the way to go!

If you are looking just for performance & do not need any mods for towing performance and or additional cooling for towing, then the first place I would spend my money would be on a tuner & tunes. The MPT tuning team is the best there is out there! Very spot-on out tunes right of the gate, very responsive with phone & email support, unlike some others I have used previously, that can sell you mod parts all day, but then you can’t hardly get a hold of them to correct & fix their lousy tunes. Mike, the head tuner is amazing with his tuning skills on these Ford EB motors. Would not hesitate to recommend MPT tuning in Florida.

…& yes I am a paying customer & no, I am not related & no I have not received any remuneration in any way to say this.
 
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