MSP Spark plug options

[onequickmsp]

Ok, So I live in Toronto, Canada. I drive my car all year round, I'm have a few basic bolt-ons. (SMIC, Injen, Hardpipes, and Forge BOV) and I'm dropping in a Unchip next monday. I race my car at the track 4-6 times a year in the summer. Should I change my plugs or are the stock fine? If I should change, should I get the NGK Zfr6f-11?? or Denso?? Finally, what are these "E3" plugs on protegegarage.com? are they any good?

 

[dirtysouth_msp]

Stay far away from the E3 plugs! I have been using denso IK22s for about 7 months with the unichip and they work great. Kind of expensive though...

 

[onequickmsp]

who makes e3 plugs and why are they soo bad?

 

[noclue401]

for the first time in any car iv owned i used the bocsh +4 platinum and they are great easyier start and better acceleration

 

[onequickmsp]

Looking at getting the PZFR6F-11 from sparkplugs.com since these are closest to OEM. They are pre-gapped at 0.044. Should I gap them to 0.032 like the Mazda manual says? I am a little confused at whether a heat range 6 plug should stay gapped at 0.044 or to the 0.032 gap. Or should I go for the IK22s which come pre-gapped at 0.032 and are one heat range colder?

I would like to find out the answer to this question also. Do we Gap them to 0.032 or leave them at 0.044?? and would NGK PZFR6F-11 be a good choice for Toronto, Canada conditions?

 

[arkitek]

I've just installed some NGK BKR7EIX and they're good so far. It's a cheaper alternative to the Denso K22 which are hard to find. These are pregapped at .030 which is perfect I think. As you up the boost, the gap should be smaller from what I've heard. I'm running at 8-9psi.

 

[jtgary]

I'm running completly stock and plan on getting the ik22's since I just hit 30,000. Shouldn't be a problem correct?

 

[dirtysouth_msp]

If you are completely stock, you really don't need colder plugs. Replacing with stock plugs and stock gap would be cheaper and would probably last longer. Although, many people have used IK22s at stock boost and have not had any problems.

 

[BastardMike]

Hey, I just got Bosch Platinum2 4301. Am I an astard, or do I juxtapose the number an think it is all good?

 

[dirtysouth_msp]

Hey, I just got Bosch Platinum2 4301. Am I an astard, or do I juxtapose the number an think it is all good?

Huh?

 

[_Sloteg_]

There's a plug guide chart with pics somewhere online.

(peep) Just thought I'd add this link to this thread.. http://www.dansmc.com/Spark_Plugs/Spark_Plugs_catalog.html

 

[Tommy1005]

thanks for the link....I've added it to the original post

 

[vinnie mack]

man so many options.. I am not sure what is in my car today for plugs.. havent looked since i got it in Feb but i am sure they are factory dealer replacement.

Dealer called me yesterday about standard maintenance on my car and I don't know if i should get some before hand cuz i know i need new plugs or just let them do it in a month's time.

any ideas? will they s*** if they see plugs other then stock in there? i want better gas mileage mine is poo

 

[onequickmsp]

I'm lost too, I'm passed 30,000 miles and I'm boosting 8-9 psi. Should I replace my plugs or keep em??

 

[onequickmsp]

It get pretty hot here in Toronto, Canada during the summer months. Should I bother getting colder plugs???

 

[ChopstickHero]

I threw in some NGK PZFR7F-11 at the beginning of May. similar build and material as the PZFR6F-11, but one heat range colder. i am running about 9-10psi on Unichip. At first, I ran them at 0.044 pregap. Ran fine. I re-gapped them to about 0.032. Feels about the same so far. No huge difference between the gaps.

 

[orng1]

You wouldn't notice it unless there was a problem, like as the plug wears the gap will get bigger and then you'd notice it a bit until you'd start to lose power from the plug not firing correctly. It's better to keep the gap smaller under boosted conditions the exra heat will wear the plug faster or foul it out from running too rich and with the smaller gap it's easier for the plug to fire.

 

[jtgary]

I bought the NFR6FIX-11 and they are gapped just under .40. Spark plugs.com says the come gapped at .44. Do I need to regap them for the msp? It will be difficult to do without breaking the center electrod.

 

[Tommy1005]

no, I believe the range is from .35-.45, so you should be fine

 

[lisevolution]

Ok, I am about to hit 30K I want to get new plugs and I've seen the options listed read the entire 8 page post and still have no clue... My mods are: HiBoost FMIC, Injen CAI, Custom Single High Flow Catted Midpipe back 3" exhaust, DSM AFC running the Supermap... Currently Stock boost but planning on boosting up to 8-9 psi as soon as I re-tap the threads on my Profec B II. Should I go colder or stick with the stock heat range based on my mod list and also taking into consideration that I'm planning on upping the boost...