Spark plugs

[Jake]

This is probably discussed elsewhere but I can't find it.

What is the best spark plug to use in a stock MM?

I need a tune up soon.

Thanks!


-

[whitey]

Auto lite AP104, gapped between .52 to .56

[Billy]

NGK TR6.

/thread

[justbob]

Post 2



Sent from my iPhone using Tapatalk

[Tnbigbody]

E3's or bosch platinum 2s btw this is kinda opening a can of worms there are many different views on this and other topics lol but if you have a particular brand that you have used in the past then try them

[RF Overlord]

The BEST sparkplug? The one the factory installed: Motorcraft.

[fastblackmerc]

NGK's or Motorcraft.

I'd never use Champions in a Ford product.

[SC Cheesehead]

NGK's or Motorcraft.

I'd never use Champions in a Ford product.


^^^^^ What he said!

[Rockettman]

NGK's or Motorcraft.

I'd never use Champions in a Ford product.

How come? :confused:

[fastblackmerc]

How come? :confused:

It been my experience that they don't last as long as other plugs.

[SC Cheesehead]

It been my experience that they don't last as long as other plugs.

Agreed, I've never had real good luck with Champions either.

[screamn]

NGK installed in mine and pleased with the results.

[RF Overlord]

I'd never use Champions in a Ford product.
How come? Tried Champions in my '94 Thunderbird SuperCoupe...wouldn't idle well and just didn't seem as smooth or powerful. Put Motorcrafts in and it was perfect again.

[ctrlraven]

NGK TR6.

/thread


Post 2



Sent from my iPhone using Tapatalk
NGK TR6 is one stage colder than stock and has a gap of .035/.036. TR55 should be used on a stock car and gappged .052-.056, (personally I'd do .052).

[whitey]

I guess nobody likes the autolites anymore....I've been fine using them for 50k. It was what was recommended to me at that time. Gapped at 54

[Billy]

NGK TR6 is one stage colder than stock and has a gap of .035/.036. TR55 should be used on a stock car and gappged .052-.056, (personally I'd do .052).

I disagree.
So does Nick McKinney
http://webcache.googleusercontent.com/search?q=cache:qCMtkMhrGpUJ:ww w.modularheadshop.com/Articles/spark%2520plugs%2520to%2520use .htm+&cd=1&hl=en&ct=clnk&gl=us
(Sorry for the big link, the new owners changed the site around and apparently deleted all of Nick's tech articles) :mad2:

[fastblackmerc]

I disagree.
So does Nick McKinney
http://webcache.googleusercontent.com/search?q=cache:qCMtkMhrGpUJ:ww w.modularheadshop.com/Articles/spark%2520plugs%2520to%2520use .htm+&cd=1&hl=en&ct=clnk&gl=us
(Sorry for the big link, the new owners changed the site around and apparently deleted all of Nick's tech articles) :mad2:

You'll need a tune to take advantage of the colder plugs.

[SC Cheesehead]

You'll need a tune to take advantage of the colder plugs.


Agreed, if you're not running any advanced timing, there's no need to run colder plugs.

[ctrlraven]

I disagree.
So does Nick McKinney
http://webcache.googleusercontent.com/search?q=cache:qCMtkMhrGpUJ:ww w.modularheadshop.com/Articles/spark%2520plugs%2520to%2520use .htm+&cd=1&hl=en&ct=clnk&gl=us
(Sorry for the big link, the new owners changed the site around and apparently deleted all of Nick's tech articles) :mad2:


You'll need a tune to take advantage of the colder plugs.
+1

Agreed, if you're not running any advanced timing, there's no need to run colder plugs.
+1

Which is why I mentioned the stock NGK replacement of TR55 as the OP said his car is stock.

[Billy]

No, that's BS tech. If you're running the engine hard, then colder plugs could definitely be to your advantage because on a stock tune the PCM's adaptive learning will advance timing, and the knock sensor will pull it back. So if you have colder plugs, then the knock sensor won't pull back timing.
No offense guys, but I would take Nick McKinney's opinion over yours. He's been in this business for longer than any of us.

[Rockettman]

^^^ Game on ! :popcorn:

[SC Cheesehead]

No, that's BS tech. If you're running the engine hard, then colder plugs could definitely be to your advantage because on a stock tune the PCM's adaptive learning will advance timing, and the knock sensor will pull it back. So if you have colder plugs, then the knock sensor won't pull back timing.
No offense guys, but I would take Nick McKinney's opinion over yours. He's been in this business for longer than any of us.

So, if I drive my car hard it will "performance tune" itself? :confused:


Uhhhh, okay.....


Hey, Mo, Lidio, looks like you guys are in for some hard times now that the word is out... :rolleyes:

[Billy]

So, if I drive my car hard it will "performance tune" itself? :confused:


Uhhhh, okay.....


Hey, Mo, Lidio, looks like you guys are in for some hard times now that the word is out... :rolleyes:

Yes. It will. The car's PCM has adaptive learning strategies built into it and it does adjust fuel and spark tables in real time based off of your driving habits.

Obviously a custom tune adjusts these tables more radically and it also turns off adaptive learning, but nonetheless what I described does happen on the stock tune.