S2000 Under The Hood S2000 Technical and Mechanical discussions.

105k spark plugs...hmmmmm...pics!

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Old 04-05-2006, 06:56 AM
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Originally Posted by Fasttimes!!,Apr 4 2006, 07:18 PM
Thanks for the reply. They were not loose at all. They all cracked when I broke them loose. I just bought new ones so I am going to install those with anitseeze and 15 ft lbs torque. Sound right?

Also the parts guy at Honda said they are pre-gapped. What is the correct gap...?
18lb/ft !!!!!!!!!!!!

if you only do it to 15lb/ft they will back out on you and cause some major problems.
Old 04-05-2006, 08:37 AM
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Originally Posted by Convict,Apr 5 2006, 06:12 AM
$21.99 a piece? Really? I'm guessing that there are cheaper alternatives to the ones from Honda.
Sparkplugs.com
Old 04-05-2006, 05:16 PM
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Originally Posted by xviper,Apr 5 2006, 08:37 AM
Sparkplugs.com
Much better, $11.71..
Old 04-05-2006, 08:44 PM
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Im going to check my plugs in a few days when i get back home, i only have 26k miles on my car, and i know plugs last alot longer than this i probally wont change them out yet but when the time comes
Is the Nkg Plug sparkplugs.com reccomended the best spark plug for our cars or is there something else better out there? I read that specs for the gap should be .039-.043 the plug that came up was .044, does this matter? if theres a better plug let me know, im in so cal so it will be fora warmer climate if that matters.
Old 04-05-2006, 09:17 PM
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I read that specs for the gap should be .039-.043 the plug that came up was .044, does this matter?
You read right. A difference of 0.001" is not a big deal. Next set, just make them fall within the range.

The OEM plugs that have been used in S2000s are:
NGK: PFR7G-11S
Denso: PK22PR-L11S

They work fine. If you use the car in a hotter climate, you may benefit from getting the same plugs but 1 heat range colder. The Denso Iridium plug IK-24 is one such plug. It'll work well on a NA engine, but if F.I. these have shown to contribute to a high rpm miss.
Old 04-11-2006, 12:38 PM
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I actually havent bought the plugs yet. if i wanted to get a set of reccomended plugs which would you reccomend that fall within the correct gap? thanks. CHRIS
Old 04-11-2006, 01:22 PM
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lol he already said above.

The OEM plugs that have been used in S2000s are:
NGK: PFR7G-11S
Denso: PK22PR-L11S

both of those have the gaps, however, you should check them regardless before you put them in.
Old 04-11-2006, 01:37 PM
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i looked at sparkplugs.com and the NGK has a .044 gap and i could not find the denso but there was a chapmion plug that came up in the search it also had a .044 gap. I looked around for a plug with the correct gap and i couldnt find a way to search for the gap on that site. sorry if it seemed like a dumb question but i couldnt find them.
Old 04-11-2006, 05:27 PM
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Originally Posted by news2kroller,Apr 11 2006, 02:37 PM
i looked at sparkplugs.com and the NGK has a .044 gap and i could not find the denso but there was a chapmion plug that came up in the search it also had a .044 gap. I looked around for a plug with the correct gap and i couldnt find a way to search for the gap on that site. sorry if it seemed like a dumb question but i couldnt find them.
You are going about this all wrong. Don't search for a plug by "gap". Search for a plug that is cross referenced to an S2000. When you get them, check and adjust the gap accordingly before putting them in. Chances are they will have the correct gap, but simply putting them in without confirming the gap is not a good idea. Gaps can be done incorrectly, or bumped and altered between the end of the assembly line and your car.
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