Questions about Spark Plugs

[Jim Wilson]

I'm running a DLM SC setup, about 12 psi, ported heads, cam headers, etc.... Doug recommended a NGK BKR7E-11 plug (2 steps colder than stock) gapped at 0.034-0.035 and they perform great. One question is why does the NGK website recommends 0.044 gap.

http://www.ngksparkplugs.com/docs/tech/partnumberkey.pdf

Are there better plugs out there now?

I do like to stick with what works, but like to keep open minded to new technology. Does anyone know where I can pick up a set of plugs that will work well with this application? Maybe I should stick with the NGK BKR7E-11 plugs?

If you know where can pick up a set, please let me know. They are hard to find.

Thanks,
Jim

 

[99 R/T 10]

Yep, the best plug out there (IMHO), Champ. RC10ECC, if you can find them. Two step colder plug, great driveability.

 

[plumcrazy]

Doug put the NGK BKR7E-11 plugs in ine too. they aint fun when the cars cold though

 

[99 R/T 10]

Are these NGKs # 4554? If so, here are a couple of pictures. You can see the differences.

 

[Jim Wilson]

I don't know about the NGKs # 4554's, but these are the BKR7E-11 plugs....

 

[miamispd]

What is the stock heat range?

What is recommended for a TT application?

Thanks.