Oh, and has anyone tried the Pulstar plugs? I'm not 100% they are available for the 3V engine yet, but I do like the technology. Basically, they are moving the capacitor discharge right into the plug and avoiding the resistance built into normal plugs and wires to get a very hot, very quick spark.

 

we need some clarification on this thread....

what plugs are currently available for 05-08 stangs?
any benefits to them?
any negatives?

 

Champion Plugs and they are a one pice design unlike the factory plug and all the other aftermarket plugs. If you read the thread starting with the very first post it says this.

 

Clubplug also list Denso plugs being available for our cars. They list it as the IT20 plug, but if you go on Denso's web site they say you need the IT16. I don't trust clubplug.

That plug for 6.82 is a Denso

Why would you name your company to make it rhyme with buttplug?

 

The Denso plugs for 6.82 are for the V6.the plugs for 16.23 are for the 4.6 GT. The Pulstar plugs are the V6.That site is screwed up, Im not sure what goes to what now.

 

oh well thank you!!!!

i read the thread, i was asking for clarity, but you couldnt help with that now could you?

based on your post the only ones they make are the champions.

theres a lot of other plugs mentioned in this thread other than the champions.

 

there is mention of autolites, brisk, HTO, and pulstar....

but no one is clear on what plugs will work for sure other than the champions....

and apparantly the websites are quite misleading..

 

The stock plug is Motorcraft SP462 .054 gap
Autolite HT1 is the exact same plug (from what I've heard) with a .045 gap, which apparently doesn't make any difference in a naturally aspirated engine.
Both of the above are the problematic two-piece design.
Champion 7989 is the new one-piece replacement.
I can't comment on any others because i don't know enough about them.

 

I think this clarified it pretty well.



Sorry you had such a hard time understanding it.

Again the Champion Plugs are a one piece design, the Ford and other aftermarket plugs are two piece designs and they can break into two halves when removing them from cylinder head. There was that a clearer for you?

 

Thank you to Rash.

thats a good summation of the thread so far.....

 

The brisk plugs are also one piece I think and are offered at two different heat ranges. One for up to 450hp and another for over 450hp.

http://www.briskracing.com/product.php?productid=57

 

those look like a good option, but still pricey like the others

 

D'Agostino has the plugs now for 16.99 each. I'm ordering a set

 

I took 2 plugs out yesterday and inspected them. I soaked the plugs with some Liquid Wrench overnight, and once I broke them loose, they came out with minimal effort. At 60K miles I was suprised at their good condition. There was a little black carbon on the end, but nothing worth worrying about, and it wiped away very easy. The plugs physically looked brand new, they were not chewed up or worn down or anything. Other than being dark colored (normal dark I might add) there was nothing wrong with them at all. I put them back in the engine and will save the Autolite's for another year or so when I actually hit 100K miles.

I'll post some pictures of the plugs later tonight hopefully, as long as my internet at home cooperates.

 

My understanding on the Brisk plugs is that they are for FI cars

 

Maybe the 5.4 3Vengines are worse than the 4.6 3V? I know when I pulled mine out of the F150 they were really in there and chalk a block full of carbon.

 

It must be your tillman speed tune!

I might just get some carborator cleaner and do it myself if yours is fine at 60k. I have 60k too. I might load the car up on the tow dolly first though. If any break I can tow it on over to the mechanic.

 

Anyone know of a place in Canada where I can order the Champion plugs? All I can find are suppliers in the US but shipping/duty/brokerage fees would be insane.

 

My service advisor (who used to run dragsters) said they were having problems with the Expeditons and 150's plugs, not the Mustangs. He told me the plugs will last for 100k and not to worry about them. Must be the 5.4's having the problems.

 

I wonder if the brand of gas used has anything to do with the amount of carbon deposits. I have only used Shell gas. I know the top-tier gas (Chevron, Shell, etc) is supposed to have more cleaning additives.

So I wonder if cheaper brands would cause more carbon buildup. This could explain why some people have a hard time getting the plugs out with low miles on the engine but some with 50K are not having any problems at all.

Has anyone on this forum actually broken a plug taking one out? It seems like everyone here has been successful. Maybe the people here are just smarter?