Hello everyone, looking for some info on spark plug torques.
I'm planning on getting NGK part# ZNAR6IX-11 spark plugs, MSD three valve Blaster Coil On Plugs for my 08 Mustang GT and Steeda CAI and BAMA X4 Tuner.

 

It should be listed specifically in the Haynes manual for your car, but a typical acceptable range would be 10-15 lb/ft.

Have you ever dealt with the 2 piece plugs your 3V engine has? If not, do your homework as there are a few potential issues. The main one being that the electrode shield separates from the plug and stays stuck in the hole due to carbon build-up in the combustion chamber. The specialty removal tool for that situation ain't cheap either. If you look around on Youtube there are several vids of people (successfully) removing these troublesome spark plugs with an impact gun.

Last time I did plugs on a 3V engine went something like this....

(1) Back out each plug about 1/4 to 1/2 turn.

(2) Spray a light amount of penetrating oil like PB Blaster or you can also use carb cleaner spray down into the plugwell. Allow it to sit for 10-15 minutes. The purpose of this is to allow it to penetrate down to where the potential carbon build up is and loosen that up a bit.

(3) Use a impact gun for removal. The "hammer" action of an impact actually breaks it loose rather than the twisting force of a ratchet which is partially the reason why they break off inside the cylinder head.

Some manufacturers have remedied this issue by producing a 1 piece plug, not sure if NGK is one of them. Also is best to do this on a cold engine that has sat overnight or whatever.

 

Thanks for the reply, i been busy with work and got my spark plugs in last week.
ill have to look up those youtube videos because i dont want to mess anything up, now just waiting for the coils to come in so i can change everything same time, again thank you for the heads up!