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Apr 26, 2010 | 09:39 PM

#3 (permalink)

BrianBrave

<--- Huge Horsepower

Joined: Apr 2007

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From: So Cal

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Re: Spark Plugs After Modifications

Quote:

Originally Posted by Mimi05SRT6

..... Through out the years, I've personally gone 1 colder and re-gapped them smaller. With my mods I'm thinking I should go 1 colder and gap them at .034. Occasionally I go out to the track and throw in some 100 octane, so a colder plug should benefit me more I would think.

Great post for the day - as I just pulled my plugs for inspection after 19K+ miles on the 1 step colder NGKBKR7EIX-11 gapped to .035. I'm very impressed with these plugs and happy with how my car is tuned and running.

I installed these plugs along with the 185MM pulley. I haven't put a whole lot of total miles on them, but these plugs have been thru 40+ dyno runs, 3 days of full-tilt-boogie at the Texas Mile, many-many canyon runs (and a few street races) so they've been subjected to lots of 19-20 PSI boost conditions in the cylinder.

I would say that 30% to 40% of my driving is pretty hard. My SRT6 is not a commuter - just a toy..

It does look like I could use a little anti-seize on the threads, but they all have a nice brown color, with no pits or scarring.

Back in they go...

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