Will I need to change plugs, 2.93, CAI

[BLWN46]

Along with a CAI, 2.93 pulley, and programmer should i change to one colder plug as i've heard people do? Denso, NGK or Motorcraft, whats the best choice for my daily driver? :shrug:

 

[mike79]

I had to. While on the dyno getting it tuned, we were getting a wicked shimmy around 4500rpm's. Different plugs at a lower gap fixed it!

 

[I-CAN-STANG]

The NGK TR6's worked out great for me! I have them gapped at .035 for the 2.81 upper. If you get them set the gap at .038 for the 2.93 pulley. Good luck

 

[DR. WU 2000]

I did the Denso's when I went with my 2.93. Gapped to .035. :beer:
It is highly recommended to go with a hotter plug when doing a pulley swap.

 

[BLWN46]

i always thought you were to supposed to go with a COLDER plug, more boost=easier chance of detonation??

 

[03soniccobra01]

I did the Denso's when I went with my 2.93. Gapped to .035. :beer:
It is highly recommended to go with a hotter plug when doing a pulley swap.

You got it backwards dude!!! More boost needs cooler plugs..... :thumbsup:

 

[DR. WU 2000]

You got it backwards dude!!! More boost needs cooler plugs..... :thumbsup:

oke: my bad, thanx for the correction, didn't mean to confuse anyone.
Boy do I sound dumb :loser:

 

[Antex]

oke: my bad, thanx for the correction, didn't mean to confuse anyone.
Boy do I sound dumb :loser:

It must be the aroma from what that squirrel's taking a toke on..... :rolling:

 

[oxfordman03]

Which ever plug you use, be sure to torque them down way beyond the 11 ft. lbs. recomended by Ford. 35 to 45 lbs. I blew an NGK out of #4 that simply vibrated loose. It's a good idea to check the torque on all the plugs as part of regular maintanance.FYI

 

[BLWN46]

Thanks for the info all!

 

[badboy]

Be careful over torqueing the plugs. You can strip out the meager threads in the aluminum heads. I torque mine to spec and check them every now and then. None have ever come loose. I use anti-seize lube on them too.