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David David is offline
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Join Date: Apr 2002
Location: Houston (Clearlake), TX
Posts: 8,693
I ordered some NGK iridiums from in an 8 heat range which corresponds to the Bosch 4 heat range. My plugs are very light so I don't want to go any hotter. I'm temped to go even colder, but I figure getting the thing to start may be a chore.

I never got a reply on the projected question, so I went with non-projected.
2014 Cayman S
2011 Cayenne Turbo
1979 930 (475 rwhp at 0.95 bar)
Old 05-01-2007, 03:04 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #38 (permalink)