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Stock AP1 Spark plug

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Old 09-07-2008, 03:20 PM
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Default Stock AP1 Spark plug

Are there any known good spark plugs for a s tock AP1?
Old 09-07-2008, 04:57 PM
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Stock plugs
Old 09-08-2008, 03:19 AM
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NGK V Power

I use them on my Boosted S2k

NGK R5672A-8
Old 09-08-2008, 07:30 AM
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i use denso ik22
Old 09-08-2008, 04:50 PM
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Originally Posted by Eri_S2k,Sep 8 2008, 03:19 AM
NGK V Power

I use them on my Boosted S2k

NGK R5672A-8
Otherwise known as NGK 7173.

Those plugs will work great for a stock car and even a boosted car. I've never had a fowling problem with them.

They are copper though and they also are resistor-less. Some people want platinum or iridium for longevity. Some people think resistor-less plugs can ruin things.

If you want a plug that'll last longer than you probably will own the car and work with no problems, then get the oem double platinum NGK plugs.
Old 09-08-2008, 08:36 PM
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it's really about the heat range the plugs offer for your application. ask around and find out what you are going to do. for light NA mods, stock plugs will do the job. if you are going all out, you may want to look into getting platinum or iridium plugs with a different heat range.
Old 09-09-2008, 02:02 PM
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I read in Hiper Rev Vol.2 that if you are going to rev the engine at all you should have atleast a #8 plug and if you are going to track the car you should have a #9 plug.

Any thoughts on this?
Old 09-09-2008, 02:13 PM
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Really? That's pretty wild ...

What mods do you have done to the car, and/or plan on doing in the near future?

Platinum plugs last forever, but they can't be re-gapped, so if you're going to use boost any time soon, copper is a better way to go; however, if you just want a reliable plug to use on a stock or near-stock car, platinum will last longer.

The stock NGKs are great plugs though, I've never had a problem with them fouling (although only around 40k miles on the car). Are you having problems with your stock plugs?
Old 09-09-2008, 05:14 PM
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[QUOTE=zbrewha863,Sep 9 2008, 02:13 PM] Really?
Old 09-09-2008, 08:32 PM
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Spark Plug Post

Check out this link

karts should be different b/c you're running a carb and no ECU, right?


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