Spark plug upgrade.
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Laughing Gas
Joined: Jan 2012
Posts: 1,106
Likes: 25
Spark plug upgrade.
Eventually going to tune up the ole 92 f150 302 with some ford racing plug wires and install a hotter coil.
What would be a good plug to run with this combination?
Currently has crappy omni spark wires and motorcraft plugs with stock coil.
What would be a good plug to run with this combination?
Currently has crappy omni spark wires and motorcraft plugs with stock coil.
Postmaster
Joined: Aug 2015
Posts: 3,146
Likes: 32
From: Maryville, TN
The motorcraft plugs are not crappy. And the stock coil is very sufficient. If you do the "six liter" tune up, you may see some benefits, but probably not enough to feel a difference from the factory coil. It will keep up with more rpm than the stock motor will turn.
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Laughing Gas
Joined: Jan 2012
Posts: 1,106
Likes: 25
I'm not knocking the motorcraft plugs just the omni spark wires.
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Laughing Gas
Joined: Jan 2012
Posts: 1,106
Likes: 25
That's my aim, looking to boost my mpg.
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Laughing Gas
Joined: Jan 2012
Posts: 1,106
Likes: 25
Mine runs fine except it has a slight stumble at idle and the mpg will vary it will go from 10 to 14 hwy, I guess just depends on the gas I use.
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pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
Somewhat agree with this.
E3's are snake oil.
Why not get a fuel magnet and one of those hot air intakes with a turbinator? Lol!
I have switched to NGK V-power plugs after recent QC issues with Autolite/Motorcraft plugs.
NAPA Belden premium plug wires (NOT Max or Edge) are very good quality, fit well and don't break the bank.
The best thing anyone can do for fuel mileage is to keep their truck stock, tuned and not drive agressively.
It's a truck, not an econobox.
May as well accept that fact..
E3's are snake oil.
Why not get a fuel magnet and one of those hot air intakes with a turbinator? Lol!
I have switched to NGK V-power plugs after recent QC issues with Autolite/Motorcraft plugs.
NAPA Belden premium plug wires (NOT Max or Edge) are very good quality, fit well and don't break the bank.
The best thing anyone can do for fuel mileage is to keep their truck stock, tuned and not drive agressively.
It's a truck, not an econobox.
May as well accept that fact..
Posting Guru
Joined: Sep 2013
Posts: 1,033
Likes: 0
I run autolites in all mine, good set of wires and just make sure the cap and rotor are in good working order and it will run good. If the coil has been on the vehicle since it came off the factory line getting a new one will sometimes help the engine out a little from my own experience.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
So you haven't had any problems with Autolites?
The last two times I bought them at least one out of the eight wouldn't fire.
All the bad ones had loose insulators and were impossible to gap.
I don't have time for that.
The last two times I bought them at least one out of the eight wouldn't fire.
All the bad ones had loose insulators and were impossible to gap.
I don't have time for that.
Posting Guru
Joined: Sep 2013
Posts: 1,033
Likes: 0
If you are refering to me I personally have not had any of the issues you have mentioned with any plugs to date. Now it has been a few months since I have bought any but a few months ago when I got some for my 351W build i noticed no issues and gaped all with no trouble.
pedant
Joined: Jan 2008
Posts: 23,576
Likes: 38
From: EXTREME southwest CT
Yes, I was asking you.
It's been a couple of years since my issue with 25's, but my experience was enough to dissuade me.
(Nothing like doing a tuneup, and tearing your hair out figuring why it now runs like $#!+)
It's been a couple of years since my issue with 25's, but my experience was enough to dissuade me.
(Nothing like doing a tuneup, and tearing your hair out figuring why it now runs like $#!+)