Ok Iv'e been running kj20crl-11 denso's
and I like them ,but I think I'm at the limit of their heatrange for the timing i'm running,
so i'd like to go 1step colder..

read up all about the bkr and bcp ngk's..
but i've been running denso so i'd rather stick to denso.

but i've got no clue what the 1step colder is from this current plug?

would like to get one identical just 1step colder,
all other features the same.

lmk thanks.

 

the colder plugs can handle more heat, but i like to use stock plugs because i rather burn a plug than a piston.

 

why would you prefer to burn a plug?

 

well this got off track quick..
so just a note, the main reason for a colder plug is so it doesnt overheat and CAUSE
preignition/detonation.. no reaso nto run a hotter plug than you need..

 

anyone?