NGK's advice for MSP

[BOOSTR]

I asked NGK about the plugs in our cars and if a copper plug was better for a turbo application. Specifically asked about PZFR6F vs BKR7E.

Here is what they said.

"Hello,

All NGK Spark Plugs are copper core. It's the firing end design that's different. Remember NGK engineers work closely with Mazda engineers to produce a spark plug that's best suited for the application. The reason they use the fine wire platinum design are as follows.

1. Lower voltage required to fire the spark plug. Improves ignition
efficiency.
2. Longer service life
3. Enhanced ignitability
4. Lower emissions
5. Less quenching
6. better anti fouling

The BKR7E is a nickel alloy spark plug and will wear very quickly. You won't obtain a complete burn of the A/F mixture as with the double platinum series. In addition to this the PZFR is an extended projected design. This means the A/F mixture will be ignited towards the center of the combustion chamber. This means stable idle and improved combustion. If you use the nickel spark plug the ZFR series is a better choice. I would highly recommend using the new iridium IX series. BKR7EIX if you need cooler spark
plugs.

Jon MacQuarrie
Technical Customer Service Representative
jmacquarrie@ngksparkplugs.com"

GOOD INFO IN MY OPINION!

 

[DiscreetSpeed]

cool thanx for the info.

 

[funnylittlman]

Good stuff for upped boosted proteges

 

[speedfrk]

Im sticking with copper myself dont give a shat what ngk says. platnium is bad in turbo application even if its just the tips.

 

[jflo]

can u elaborate on why platinum is bad...just want to know.

anyway, this is cool information to consider

 

[mspdfreak]

Would a stock MSP benefit from these "cooler" plugs?

(sorry to jack)

 

[MSPDAVE125]

Im sticking with copper myself dont give a shat what ngk says. platnium is bad in turbo application even if its just the tips.

You're right! Platinum is not ideal for ANY turbo'd engine.


But don't rule out Irdium. Iridium is a much harder and more durable material than copper and Iridium plugs will withstand much higher cylinder temps and last much longer.

Gapping your plugs is critical too!

Most tuners will tell you that a .032 or even .030 gap is ideal for colder plugs in a turbo engine

I gap my NGK Iridiums to .030.

 

[funnylittlman]

When I get my plugs changed at 30K, I'll consider going to Iridium

 

[Mark94]

Where is the best place to find the iridium plugs? Can we find them at local auto part stores or do they have to be ordered online?

Thanks!

Mark

 

[MSPDAVE125]

Where is the best place to find the iridium plugs? Can we find them at local auto part stores or do they have to be ordered online?

Thanks!

Mark

Just quote the NGK part # to your Auto Zone or Pep Boys Sales Rep and they'll probably have them in stock.

 

[mazdadan]

I put NGK V-power plugs in my ES. No real performance improvements, but the engine ran a bit smoother. My ES has regular Denso plugs from the factory. Some engines have NGK which are basically the same thing.

Like others said, I would stay away from the platinum plugs. Platinum plugs don't give as smooth of an idle, but the benefit is that they last a little longer. Personally I don't mind changing plugs every 30K miles since they are so inexpensive.

With my diesel engine i'm in hog heaven....no plugs to change...ever!!!

 

[jersey_emt]

With my diesel engine i'm in hog heaven....no plugs to change...ever!!!

What about glow plugs?

 

[TheJohnny]

There just trying to promote their new plugs.....J/K. I'm using the BKR7E's.

 

[Kooldino]

I also run BKR7E's gapped to .035. BUT, when the car isn't warm on a cold day, they'll misfire @ 5KRPM and up. I guess i'll either go with "hotter" plugs or close the gap, or both.

 

[unwrittenLaw]

so whats the consensus from the experts in here for boosted cars....iridium or copper...?? I have the copper ones as a precaution even though i don't raise the boost, because i would rather have cooler plugs vs longer-lasting plugs...

 

[TampaBlackMSP]

I've been happy with my BKR7E's, but might consider the iridium after 30K as well...no problems to date so far however...

 

[robsir00]

Hey Guys...

I heard that iridium plugs by denso are very good for turbo apps . The tip is made out of an astroids fragments that hit the world 50 million years ago. They can withstand lots of heat.
http://www.densoiridium.com/index.php?flash=1

 

[robsir00]

If i recall correctly Turbo mag or superstreet did a test on a turbo powered car and gained about 15-20 hp

 

[MSPDAVE125]

If i recall correctly Turbo mag or superstreet did a test on a turbo powered car and gained about 15-20 hp

Yeah a freakin fully built drag civic running a T3 super 60 at 25 psi on spray!

Of course you'll gain 20 hp off spark plugs with a setup like that!

You'll maybe smooth out your existing HP at 6 psi. But they do help!

 

[robsir00]

Hey Guys this says it all...From the denso page

Iridium Alloy

In a never-ending effort to improve upon success, DENSO developed an Iridium alloy that is superior to platinum based on hardness, strength and melting point. The new Iridium alloy is composed primarily of Iridium with rhodium mixed in for oxidation wear. Pure Iridium has a melting point of almost 700C higher than platinum, and had the greatest potential for resistances against wear. Iridium by itself is susceptible to oxidation wear at temperatures over 900C, however, ordinary driving around town an engine would never reach these temperatures. Further testing proved that Iridium alone would not meet DENSO's demanding standards. After testing other pure metals combined with Iridium, rhodium proved to be the best choice to meet the needs of DENSO's spark plug engineers.

Would a stock MSP benefit from these "cooler" plugs?

(sorry to jack)