Spark plug change/check

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Nov 5, 2009 | 10:45 AM

#11

kwasley

Joined: Oct 2008

Posts: 1,306

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From: Mississauga

oem is NGK pfr7g-11s's or DENSO

Nov 5, 2009 | 05:53 PM

#12

sketch

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Joined: May 2006

Posts: 433

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[QUOTE=kwasley,Nov 2 2009, 12:05 PM] damn, how many K's are you at now

Nov 5, 2009 | 06:18 PM

#13

starchland

Joined: Sep 2007

Posts: 7,346

Likes: 112

id hope so, they do seem to take boost fairly well provided a good tune and not crazy psi or anything. the only thing that concerns me is the oil bolts and stories of oil consumption.

Nov 5, 2009 | 07:23 PM

#14

sketch

Registered User

Joined: May 2006

Posts: 433

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Most if not all VTEC motors consume oil, just be thankful its not an H22 in our cars.

Nov 10, 2009 | 11:30 AM

#15

zeroptzero

Joined: Oct 2009

Posts: 30,016

Likes: 5,478

From: Ontario Canada

Quote:

Originally Posted by kwasley,Nov 4 2009, 05:38 PM

are you running the stock gap on those iridiums of .03?

are you FI?

I was considering those but adjusting the gap on iridiums can be tricky and im not FI.

im going to stick with the ngk pfr7g-11s's

no my engine is totally stock. I run the stock gaps on them at .043". Adjusting gaps on Iridiums is perfectly fine, you do have to be careful about it though, and not be overly rough when checking the gap with the wire gauge. The NGK centre electrodes are pretty strong, not as thin as the Densos. I've adjusted them dozens of times on different vehicles and never had any break on me, even on turbo apps.

I like the Iridium NGK design as it has the v-trimmed ground electrode, and the Iridiums require less voltage to fire than other plugs, which should equate to a better spark IMO. I'm set on replacing them every couple years too.