Best spark plugs for stock msp?

[Dr.Sound]

If you have a stock msp. Then stock plugs are the best.

absolutely

 

[FlyinMSP]

I was just reading a nice article about plugs in the latest issue of Grassroots Motorsports....

 

[forgotmypsswrd]

Dude Look at you goooooooooooooo

Dude Look at you go on this Board man. NICE. Its HWY DEMON.LOL (mswerd)

then that guide should be UPDATED!

What should they be gapped at?

 

[RYuReady]

I'm new to this car stuff and was looking into spark plugs also. I was wondering if it is a big deal to replace our extended reach plugs with non-extended reach plugs. Are there advantages and disadvantages? I'm assuming it would probably be safest to replace the extended reach plugs with another extended reach plug, but would putting a regular plug work with no problems or maybe even better combustion?

 

[jurgs01]

The extented reach one's theoretically improve combustion efficiency. It's not going to hurt your car to put non-extended reach in. I have the Denso IK-22 plugs and they are not extended reach. I used to have the ZFR7F plugs in my old speed. Good plugs (I like the Densos better). I believe I did have to gap the NGKs though. The Densos come pre-gapped.

 

[Dr.Sound]

I'm new to this car stuff and was looking into spark plugs also. I was wondering if it is a big deal to replace our extended reach plugs with non-extended reach plugs. Are there advantages and disadvantages? I'm assuming it would probably be safest to replace the extended reach plugs with another extended reach plug, but would putting a regular plug work with no problems or maybe even better combustion?

worse combustion.
my car idled rough......it also seemed like it didnt have as much power as with extended reach plugs.

i now have NGK ZFR7F-11 and they are great.

when i took out my non-extended reach plugs, they were all black. at that point they had about 5000 miles on them.
when i last checked the extended reach plugs that i have now (after 8000 miles) there were no carbon deposits on them at all.

 

[jurgs01]

worse combustion.
my car idled rough......it also seemed like it didnt have as much power as with extended reach plugs.

i now have NGK ZFR7F-11 and they are great.

when i took out my non-extended reach plugs, they were all black. at that point they had about 5000 miles on them.
when i last checked the extended reach plugs that i have now (after 8000 miles) there were no carbon deposits on them at all.

I think that's because you had the BRK7E plugs. They are not extended reach, are not a very high-quality plug, and are cooler (You are at stock boost right?). All of that = worse combustion. I love how smooth the Denso IK22 plugs are.

 

[FlyinMSP]

i now have NGK ZFR7F-11 and they are great.

i agree, they are very good plugs indeed! i just wished they had a silver version of those...

 

[Ryoga28]

So if I'm att stock boost which plugs should I get. ZFr7F-11 or IK20?

 

[FlyinMSP]

Stock, get the ZFr6F-11 (6, not 7!) or IK20 if you want iridium from Denso or ZFR6FIX-11 for NGKs iridiums (I used them for a year and they are very good)

Note: they are all pre-gapped at 0.044 which is fine for stock (bigger spark)

 

[Dr.Sound]

yeah, u might be right.
i've heard good things about densos

 

[genius]

Stock, get the ZFr6F-11 (6, not 7!) or IK20 if you want iridium from Denso or ZFR6FIX-11 for NGKs iridiums (I used them for a year and they are very good)

Note: they are all pre-gapped at 0.044 which is fine for stock (bigger spark)

Hold up... I thought we agreed to use a .32 spark gap? Now I gotta ask, what is the consensus? Maybe I should do a poll on spark plugs

I was using one step colder plugs at 9 psi and noticed heavy carbon deposits... the plug was so cold that the spark wasn't burning itself clean. What if I extend the gap?

 

[jurgs01]

Gap them to .032". The densos come pre-gapped to this. You can't gap the Denso iridium power plugs or you will damage them. The NGK copper plugs come gapped at .044". I gapped them down to .032".