2 questions on NGK plug part #'s

[nismofan14]

Ok maybe one of you guys can help me with this. I purchased bkr5e-11 ngk plugs. I used to run denso plugs that were one step colder with my 125 shot. I am getting ready to switch to a turbo setup so I just got the bkr5r-11's. Just incase I get the urge to spray again before I get the turbo underway I purchased bkr6e's . What is the difference between bkr*e-11 and bkr*e? Also does one number higher = 1 step colder in ngk plugs?

I searched on the heat range question but came up with someone saying that 1 number higher = 1 step colder and then another person saying that bkr7e-11 was 1 step colder.

[nismofan14]

ok I found the answer th the heat range question but still wondering what the difference is between bkr*e-11 and bkr*e? In other words, what does the 11 stand for?

[WAbernethy]

Try this

Or this

Basically, 11 refers to the gap set by the factory. .044 in this case.

[nismofan14]

Thank you very much for the info. I missed that second page on the ngk site.