L90 is the standard Sno-Runner plug
I think you may have a few of your NGK letters and numbers arse about face ... but I understand the heat range you are referring to. An 8 or 9 will most likely be too cold for my application, I'm going to be no where near your go kart power. But still useful info.
NGK to champion is a little like trying to translate English to Mandarin!
L90, L90C or RL90C are all about equiv to an NGK heat range of 5 ...
L86C or RL86C is probably where I'll need to be (BR6ES)
I think you may have a few of your NGK letters and numbers arse about face ... but I understand the heat range you are referring to. An 8 or 9 will most likely be too cold for my application, I'm going to be no where near your go kart power. But still useful info.
NGK to champion is a little like trying to translate English to Mandarin!
L90, L90C or RL90C are all about equiv to an NGK heat range of 5 ...
L86C or RL86C is probably where I'll need to be (BR6ES)