997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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Iridium plugs...does anyone run them?

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Old Sep 30, 2016 | 01:26 PM
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Iridium plugs...does anyone run them?

 
Old Oct 1, 2016 | 03:09 PM
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I run Denso iridium 8s
 
Old Oct 1, 2016 | 11:57 PM
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NGK R7433-8 or -9 depending on desired heat range.
 
Old Oct 2, 2016 | 03:40 AM
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Yes.....Denso IK22 (cooler due to tune and mods) gapped at .025

DC
 
Old Oct 3, 2016 | 02:47 PM
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Does E85 tuning require a specific heat range? I am about 5k miles away from a plug change. So I want to be proactive about what I replace the plugs with.

I plan on tuning for E85 ultimately with upgraded vtg turbos, ICs and the 1300cc injectors.

How did you guys decide on plug and gap?
 
Old Oct 3, 2016 | 02:52 PM
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Originally Posted by therock88
Yes.....Denso IK22 (cooler due to tune and mods) gapped at .025

DC



Ran that same set up on all my turbos as described above. I ran them in my 911 as well up until I tried some plugs that required no gapping etc that prodigymb recommended.


I might switch back to the Denso's next plug swap to see as I really liked them...pending if I an not feeling lazy as the ones I am running have been trouble free as well.
 



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