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Feedback requested:hotter heat range/spark plugs

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Old Oct 27, 2005 | 05:29 PM
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Rag-Top Rick's Avatar
Rag-Top Rick
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Melting Slicks
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Joined: Sep 2004
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From: N. County/San Diego
Default Feedback requested:hotter heat range/spark plugs

Greetings All,

Thank you in advance for any first hand experiences you can pass along, now here`s the deal.
I have a 98 A4 vert and as is common on the earlier years the a/f runs on the rich side. I recently checked my plugs (Denso Iridium IT16 .60 gap) they read between med and dark gray.
I`m considering trying a hotter plug (1 or 2 heat ranges hotter) and I`m looking for first hand knowledge/feedback from those who have tried this change, before I go out and spend almost $12.00 a plug.

For the record, the car runs VERY strong as is and has the folowing mods:
Vararam w/K&N, QTP tri-y`s, Random Tech cats/x-pipe, B&B Bullet, Hypertech (mostly fan setings, line pressure, etc.)

And yes, I will be having A&A dyno tune once I deceide on heads/cam.

Thanks again, Rick
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