Arg, Denso copper spark plugs have a screw-on cap too...

[mastacox]

Well, damn. My Iridium IK-22's are starting to feel a little "sluggish" under boost, so I seized the opportunity and bought some Denso Copper 5062 plugs. The screw-on caps of the IK-22's have given me hell in the past, so I was looking forward to using some plugs that has a solid cap... but no such luck.

Yay New Plugs:
http://i93.photobucket.com/albums/l70/mastacox/CopperSparkPlugs1of3.jpg

Sweet, 3 electrodes:
http://i93.photobucket.com/albums/l70/mastacox/CopperSparkPlugs2of3.jpg

Damn! Screw on top:
http://i93.photobucket.com/albums/l70/mastacox/CopperSparkPlugs3of3.jpg

I'll have to try and decide if I'm going to solder these caps on, or JB weld them like I did with the IK-22's. :argue: At least the Copper's are a lot cheaper than the IK-22's.

[corax]

Just use some red LocTite - easier than JBWeld (yeah, I'm that lazy) and I would think it won't coat the threads as thick - think "electrical conductivity through JBWeld"

[CJM]

Red locktite is a much better idea. Use the gel kind tho or its runny.

[corax]

though for real bling they should get tig welded on :best:

[mt_goat]

How are those working out for you Brian?

[mastacox]

Honestly, I don't like them. :shake: They can't be gapped so I think I have more misses at high-boost than the IK-22's gapped .032 did. I'm going to be going back to IK-22's when I do my top-end rebuild.

[mt_goat]

Thanks, I'm getting some bad wear on my IK22 ground straps on the drivers side so I was looking for a better plug. Like maybe a dual platinum or a dual iritium/platinum plug. Something with a higher wear ground electrode for this waste spark ignition system of the 5VZFE. I did find a Denso dual iritium/platinum plug but I'm not sure where to find it or what number to use: http://www.globaldenso.com/en/products/aftermarket/plug/plus/features.html

[mastacox]

Yeah when I took my IK-22's out they had worn down more on one bank than the other, but I didn't think too much of it. I would just re-gap them every 5000-10,000 miles or so and maybe swap sides when you re-gap.

[mt_goat]

Yeah when I took my IK-22's out they had worn down more on one bank than the other, but I didn't think too much of it. I would just re-gap them every 5000-10,000 miles or so and maybe swap sides when you re-gap.


I've heard some bad things about swapping sides, something to do with changing the polarity after the plug has been in service that was not good, but I can't remember why now.

It appears the Denso dual plugs are sold in Europe under the names Iridium Tough and Iriduim Plus 2, see here: http://www.denso-europe.com/Iridium-Spark-Plug---1013450000000001.aspx

[mt_goat]

I think I found the number that would be the same as the IK22 but with a platium ground plating. Its the VK22: http://www.opieoils.co.uk/p-4224-denso-iridium-tough-spark-plug-vk22.aspx