What Plugs to Run - Yes I have read many threads on this. Read my questions closely.

[got3fords]

You mean Ford doesn't put good plugs in at the factory, after all the testing they did to perfect the 2.3L EB?

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[HTX1811]

Sounds like you are relying on the onboard MPG computer. If you weren't manually calculating it before there's a chance that legit changes are going to be inaccurately measured. If it's positive at all, great.

I 'corrected' my onboard and have recently changed brands on tires and that showed a .1 mpg improvement overall which I'd consider within a nominal variance.

I do hand calculations and they are within a acceptable margin of error.

 

[kieefer]

FYI. I saved this but regrettably I didn’t save who posted it, (edit @RCMUSTANG ) whoever did, thank you.
To get your display mpg computer to match your calculated numbers, do this;

“Take your manual calculated mpg and divide by the computer calculation. Example 21 mpg manual cal divided by computer cal 22.3 = 0.9417. You can round up to 0.942. Multiply by 1000 gives you 942. Plug that number into step #7.



#1 Hold the left steering wheel center ok button down.

#2 turn accessory power on (do not start).

#3 you'll see ET appear (top of left screen, don't have standard gauges so I don't know how or where that will appear).

#4 hit ok.

#5 Engineering screen will appear.

#6 hit arrow up to the AFE screen and follow screen to adjust.

#7 once set to desired numbers turn off ignition.

It may take 1 or 2 tanks to fully adjust to the change. That should get you closer to real mileage.”

 

[Dgc333]

It may take 1 or 2 tanks to fully adjust to the change. That should get you closer to real mileage.”

When I adjusted mine the displayed mpg in trip 1/2 and the economy screen changed immediately by the percentage I entered.

 

[Racket]

Bonus thought: I wonder if changing to a higher output ignition coil set would be a part of all this tweaking (colder plugs+tune)?

 

[Cabose-1]

Champion plugs!

 

[Radioman]

FYI. I saved this but regrettably I didn’t save who posted it, whoever did, thank you.
To get your display mpg computer to match your calculated numbers, do this;

“Take your manual calculated mpg and divide by the computer calculation. Example 21 mpg manual cal divided by computer cal 22.3 = 0.9417. You can round up to 0.942. Multiply by 1000 gives you 942. Plug that number into step #7.



#1 Hold the left steering wheel center ok button down.

#2 turn accessory power on (do not start).

#3 you'll see ET appear (top of left screen, don't have standard gauges so I don't know how or where that will appear).

#4 hit ok.

#5 Engineering screen will appear.

#6 hit arrow up to the AFE screen and follow screen to adjust.

#7 once set to desired numbers turn off ignition.

It may take 1 or 2 tanks to fully adjust to the change. That should get you closer to real mileage.”

Just to give credit where credit is due, this was posted by @RCMUSTANG in May 2019.

 

[kieefer]

Just to give credit where credit is due, this was posted by @RCMUSTANG in May 2019.

Thanks, noted for future reference.

 

[johnboy13]

This is why I am changing them and viewers like you are why I have to be so precise about what I am looking for. Trying to keep the thread on topic based on what I have read and gleaned from this forum and the status of my current plugs.

The gaps are .030 and the pics of the plugs speak for themselves.

Do you remember what size of deep well socket it took for removing the spark plugs?

 

[Dereku]

Do they have a spot like mine in the red circle?

That spot is by design.

 

[HTX1811]

I don’t I will find one of the old plugs and report back. Pretty sure I still have them.

Do you remember what size of deep well socket it took for removing the spark plugs?

 

[bluemonstr]

After about 400 miles all is good. Not going to comment on gas millage just yet. A bit early for that. I will say my avg. for the last 3200 miles according to trip 2 is 17.4 mpg. Going to reset it and see what it says after 1000 miles. Not really expecting anything different, but compared to others, my MPG seems low. I do drive like a bat out of hell all the time though and my 93 tune is a pretty aggressive one.

The only reason you would get any kind of performance or gas mileage boost would have been if something was wrong with your existing (old) plugs....which based on the pictures you posted...no way. Those were some healthy looking plugs you swapped out. However, changing them out is a no harm no foul type of thing...some of us just like to 'play' with our autos/trucks. I get that.

If you are waiting until you 'feel' the difference, you've waited too long to change out. At 100k miles I'm sure that is too long to wait (with a tuned motor), the very reason I searched this thread was because I too am tuned and was concerned about changing early (as I have in the past needed to). My old BMW 335 needed to be changed every 10 - 15K miles - the plugs literally fouled out and misfires ensued. The tune was aggressive in psi (24.5 psi compared to 8-12 psi stock) and fuel (much more than stock). I believe the reason our plugs last longer is because It would appear that our (over the counter) tunes are truly not that aggressive (in boost compared to stock).

When I checked my 'stock' boost to tuned boost I found that they both commanded the same (22.5 psi) but the difference being the timing and fuel (I'm guessing)...as the tuned power is definitely felt. Even the 87 tune goes to 22.5 psi, only when I went to tow tune did I get a reduction to 20psi). That being said, I don't think the truck runs rich like the 335 did. Then again, I removed the cats on the 335 as well).

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