colder spark plug motorcraft????

ricardoa1

Registered User
we use awsf 34 pp
but there is nothing thats similar to the stock one
and is one step colder. There isnt a awsf 24 pp.
is there anyone that is currentrly running a colder plug that is motorcraft?
i want to run a colder plug because I am making an incredible amount of boost and running nitrous.
I dont know if I should just change the gap on the stock one
any input.

PS its a good thing that I decided to change them because the shop that put on my exhaust manifolds broke a factory plug and decided not to tell me and replace the broken one with a copper ac delco. :mad:
 
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Many people are using the Motorcraft AWSF 32 PP, which has a shorter tip and acts as a slightly colder plug. I believe there may be an AWSF 22 PP available as well. If you don't care about platinum or not, there was an AWSF 24 C used in the 80s Escort GT motors, if I remember correctly ... would have to take a look at the Motorcraft plug cataloguge to verify that.

And a search of the forums will probably come up with a few threads about this topic too ... ;)

cheers
Ed Nicholson
SCCoO
 
Autlolite APP103
Motorcraft AWSF22PP

These plugs have the shorter tip and are listed one range colder than the stock plugs.
 
I looked into awsf 32 pp
but that part number changes to a
agsf 32 fm or somthing along those lines.
the fm describes the new type of platinum that ford is using its not the same as the pp which is two platinum tips, this one has a platinum wire. and no platinum on the ground wire.
Any thoughts
 
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(all motorcraft numbers)

Well I investigated a little more. I could not find the awsf 22 pp in the ford system. George maybe you were refering to the agsf 22 pp.?
the agsf 22 pp seems to be what I am looking for.
it has a shorter tip and it does have a one step colder rating.
So I think it will be similar to a two step colder then stock.


Ill try them and let you guys know.

Update. I bought them and put them in a spare set of heads.
Is this shorter tip a good idea? I am having doubts.
it seems like the spark will not be in the optimun place?
Just a food for thinking???
i am still going to try them. $25. (10%over cost cant beat that.)
 
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Those plugs do tend to foul if the car idles too much and it is not driven hard. Of course that won't apply to you, but I just thought I'd mention that. They also don't start all that well when it is cold.
 
No, Bill, the 103's are only listed as one range colder than stock on the charts. Your plugs are listed as the same heat range as stock (like the Autolite 764s). Most of us only say they "function" one range colder because of the shorter tip. Sounds reasonable, but heat range should be a heat range no matter how far the plug sticks into the combustion chamber.


Autlolite APP2544 Stock Long end
Motorcraft AWSF34PP Stock Long end

Autlolite APP764 Stock Short end
Motorcraft AWSF32PP Stock Short end

Autlolite APP103 -1 Short end
Motorcraft AWSF22PP -1 Short end

These numbers have not been verified in a while so some may have changed. In the Autolite designation, I believe the last number is the heat range. In the Motorcraft designation I think it is the next to last number.
 
Motorcraft is consolidating a bunch of their spark plug numbers, getting rid of some of the duplication.

The factory SC plug, AWSF 34 PP, is still sold as that number.

The AWSF 32 PP is being replaced with the AGSF 32 FM, which is a platinum finewire plug as was mentioned.

There is an AWSF 22 E available, that would be 2 steps colder.



cheers
Ed N.
 
On the motorcraft the second letter determines the thread design, for examle the aGsf the g stands for fully threaded
on the aWsf the w stands for half threads, but it doesnt matter on the sc what kind it is.
the set of numbers tell us the cold range and the tip design.
stock is 34 the three shows its a warm plug and the four shows that its a long tip disign. On the 32 its still a warm plug (3) but the tip is a shorter design which acts like colder plug. (there might be a misconception of the tip, the tip is everything after the threads (on the side that goes in the engine) it includes the electrode and ground wire.
on 22 that tells us that its one range colder and has the same tip as the 32 (shorter than stock) so acts like two range colder.
the fact that is a colder plug has to do with an internal design so you would not be able to tell if a plug is colder or warmer from outside.
the 32 and 22 look identical.
I had to read the motorcraft book 10 times to understand this.
hope it helps someone else.
 
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On these 32PP's what would be the recommended gap to start at? Hope it is alright to post here for those running them. Stock 95.
 
Ed, I may have some bad info on how the numbers work, but wouldn't the '22' only be one range colder than the '34'?
 
ricardoa1 said:
the set of numbers tell us the cold range and the tip design.
stock is 34 the three shows its a warm plug and the four shows that its a long tip disign. On the 32 its still a warm plug (3) but the tip is a shorter design which acts like colder plug. (there might be a misconception of the tip, the tip is everything after the threads (on the side that goes in the engine) it includes the electrode and ground wire.
on 22 that tells us that its one range colder and has the same tip as the 32 (shorter than stock) so acts like two range colder.
the fact that is a colder plug has to do with an internal design so you would not be able to tell if a plug is colder or warmer from outside.
the 32 and 22 look identical.
 
Thanks for the info, ricardoa1. I had seen some of that before, but couldn't put my hands on it again. I also did not see your post when I posted for Ed.

One word of warning to potential plug hunters, there is a set of plugs that has a long tip like stock, but is threaded out to the end. These are from some of the Ford mod motors. Do not use these kinds of plugs. The threads will stick out into the combustion chamber get combustion crud on them and then mess up your aluminum threads on the way out! If you get a plug that is fully thread out to the electrode, make sure it is the shorter length type!

NKG.jpg
 
i illustrated what I was trying to say.
hopwfully it clarifies my bad english
also I on the picture its supposed to say agsf, not agsp
 

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I've been following your english just fine! The plugs I posted are just as long as the stock plugs but are threaded all the way to the end. These threads will stick out into the chamber. Where the shorter plugs even though threaded to the end will not.
 
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