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post #1 of 8 Old 07-26-2011, 12:43 PM Thread Starter
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Iridium Plugs?

My tuner is recommending that I switch to Iridium plugs? Right now I am running NGKs with a heat range of 8. Any thoughts on this?

Also, Anyone know what the NGK Iridium plug for a TFS TW head would be in the 8 heat range? Cannot seem to find any info on that....


94 GT Vert - R347 - B&G w/PT76GTS - T56M - AEM w/LS2 Coils - 575/601tq @ 10Psi

Last edited by Donovan; 07-27-2011 at 12:32 PM.
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post #2 of 8 Old 07-27-2011, 12:25 PM Thread Starter
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I got in touch with Brandon Peeler at NGK and here is what he said on Iridium part numbers for my TW heads that require a 14mm x 19mm (3/4) plug:

"If you want to stay with the same #8 heat range that you have now, then the iridium part number would be BKR8EIX stock# 2668

One heat range hotter is the BKR7EIX stock# 4644 and one range colder is the BKR9EIX stock# 2669 Hope this helps, thank you.

NGK.com - Cross Reference Search Results

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NGK.com - Cross Reference Search Results
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post #3 of 8 Old 08-01-2011, 10:16 AM
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We always install standard NGK's on anything forced induction/NOS set-ups.
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post #4 of 8 Old 08-01-2011, 11:08 AM
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I run NGK stock# 4554

I might try some iridiums next.


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post #5 of 8 Old 08-01-2011, 04:37 PM
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Quote:
Originally Posted by wizwrath View Post
We always install standard NGK's on anything forced induction/NOS set-ups.
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post #6 of 8 Old 08-02-2011, 01:29 PM Thread Starter
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Quote:
Originally Posted by wizwrath View Post
We always install standard NGK's on anything forced induction/NOS set-ups.
Any bad experiences driving this?

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post #7 of 8 Old 08-02-2011, 01:44 PM
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I run standard NGK also, always are great

Edit
I actually run the Vpower ones, sorry

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Last edited by 4Jenna; 08-02-2011 at 01:46 PM.
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post #8 of 8 Old 08-03-2011, 10:32 AM
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Thats the ones I meant to run, the V-powers!! I only run iridiums in regualr cars that wants longevity betweens tuneups.
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