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Originally Posted by stevet47
Unless these plugs increase power on a NA fit, how is this a compromise by Honda. Honda engineers didn't pick spark plugs with forced induction in mind.
Good info for FI people though!
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Honda must compromise emissions for performance. That is the compromise. You're right, it's not their job to pick forced induction friendly plugs. But we have tested these plugs on both NA and FI Fits and have seen gains in both. The largest gains will be seen in the boosted car, because spark quality becomes more important. But we tested the IK22s this past weekend at our Fit Meet on a NA Fit. We picked the highest NA HP Fit of the meet and installed them to see if we could improve upon even the best car, and we saw a 3% gain.
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Oscar, I just tried to order them on your website and the order form is not working properly. Couldn't do it.
Question 1 - is there a NGK equivalent you recommend?
Question 2 - do you sell them pre-gapped and what is the gap?
Thanks in advance.
S'Bus
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I ordered this morning through the site to check it, and it seemed to work properly. Make sure you put the quantity at 1 (or 2 or 10
) in the quantity box. Or call us, and our sales staff can help you out.
Q1- The IK22 is a NGK heat range equivalent 7. I recommend the Denso IK22 spark plugs.
Q2- The Densos are unique because they come pre-gapped for high performance engines. They are gapped at .8mm (.032"). NGK for example requires you to gap them down from 1.1mm. No fuss with the Denso.
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Is the IK22 ok for use in an NA setup since it's a colder plug or were the NA tests done with the IK20 which is the Iridium OEM replacement? I'd assume you'd want to stick with the stock heat range plug in NA setups and the cooler plug is only needed when boosted.
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We only tested with the IK22 in the Fit. We don't carry the IK20 plugs and they would work fine in your car, but we have no data on performance gain. Stock heat range is made to perform in North Dakota cold and Phoenix hot, with high performance not being the top priority. For drivers that demand peak performance and drive their vehicles hard, the IK22 is the plug we recommend. Also, the IK22 spark plugs come with the tighter .8mm gap. The IK20 plugs have a 1.1mm gap standard.
-Oscar Jr.