How often do you change your plugs?

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Oct 21, 2006 | 01:02 PM

#31

WarmPepsi

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From: Indianapolis, IN

Quote:

Originally Posted by Kayaalp

What exactly is the advantage of copper plugs? I run them in my BMW race car, as that's what's recommended by BMW and my engine builder. But I thought the 4G63T in our Evo was designed to run with iridium plugs. How is switching to copper any better?

Emre

cheaper.

You go through a set of coppers and just chuck 'em.

A new set of coppers is better than an old set of iridiums

Oct 21, 2006 | 01:16 PM

#32

cfdfireman1

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I change them every few thousand mile or 2 or 3 track days.

http://cgi.ebay.com/ebaymotors/ws/eB...tem=4569478952

Last edited by cfdfireman1; Oct 21, 2006 at 01:28 PM.

Oct 21, 2006 | 03:23 PM

#33

992gnt

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From: Kentucky

They're much cheaper. That's all. I don't think they run any different than the iridiums.

Oct 21, 2006 | 04:12 PM

#34

mitsuorder

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Generally iridiums can be looked at as being about one half of a heat range colder than their copper counterparts if it's worth anything to the conversation.

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