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Old 01-22-2006, 02:13 PM   #1
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Spark plug torque?

Just bought the Ford Racing wire set and have the Motorcraft copper plugs arriving Wednesday. Per all the discussions on these items (and other alternatives), I’m ready to try these out. However, a quick question…..what torque setting to I use when installing the new plugs?

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Old 01-22-2006, 02:25 PM   #2
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the copper plugs should only be used with HEAVY NA mods, nitrous, or super/turbo chargers but i dont know your setup to really justify it...

as for the torque spec, there really isn't any, you should do the general setup, when its tight just tighten is VERY slightly bit more and your good :) don't use too much strength though, use some anti-seize too.
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Old 01-22-2006, 05:07 PM   #3
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ouikikazz,

Thanks for the reply. I do love this forum...it's so full of information and willing participants.

From what I've read, wrt copper plugs (specifically the Motorcraft), you're partially correct wrt the copper plugs being beneficial for FI setups. However, within many of the threads that have discussed the copper plugs, '03OrangeSVT' also stated that by using them, it would also potentially improve the cars performance (not necessarily horsepower). I think he suggested gapping them at 5 thousandth more than the default factory setting...with the new gap being 0.060.

I'm experimenting, and so it might be that I find that it doesn't reach my expectation. However, for the cheapness of these plugs, I can at least try them, even though I would obviously need to change them more often if I continue to use them....but I also use Royal Purple oil and change that every 8-10K...a lot less than it's spec'd for!

What I'm really in need of though, independent of what plug I use...is the max torque to use when putting them in!!! I've had old cars...still have a 1969 Alfa Romeo Spider that will be on the road again this summer I hope (took 2 years to find a working diff!!!). However, I have no documentation at this point to tell me what the SVT specifies.

Cheers, Shane
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Old 01-22-2006, 09:12 PM   #4
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The Motorcraft Copper plugs will work great in your stock car. I've been running them in mine with the Ford Racing Wires and have nothing but praise for the way they work.

I left mine gapped to .055 and cannot see how .005 more is going to make much of any difference at all. You should be fine with either setting I'd bet.

And, I believe the normal install torque on taper seat plugs is 15 to 18 ft lbs. That is not from any SVT literature, just what the type of plug normally needs and what I use when installing them.

You should notice a real improvement in how the engine runs with the new setup. Mine is stronger down low and the throttle response much crisper. A VERY worthwhile modification IMO.
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Old 01-23-2006, 09:24 AM   #5
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Robert,

That's great news to hear! My plugs should arrive Wednesday (along with other stuff), and I'm looking forward to installing them. Thanks for sharing your good experiences, and for the torque info.

I'll let you know what I think when it's up and running with new wire set and copper!

Cheers, Shane
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Old 01-25-2006, 12:12 PM   #6
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i have a question, when you change the spark plugs and boots do you add dielectric grease to the plug boot on both ends as well as add antiseize to the spark plug where you screw it on?
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Old 01-25-2006, 12:16 PM   #7
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I have been tightening it just snug then giving about a 1/4 turn more to tighten, and that it. No probs.

I stripped one out on my Mazda once and it was a pain in the arse fixing it...never again.
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Old 01-25-2006, 05:12 PM   #8
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Slip....yes, grease on both ends and antisieze on the threads is the way to go.
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Old 01-25-2006, 06:35 PM   #9
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Whenever I put my plugs in, I just use the smallest ratchet I have. And the anti-seize is definitely a life saver.
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