spark plugs

[MsPxZoOm]

what is the difference between BKR7E-11 and the BKR7 for the NGK sparkplugs???

 

[changedman]

i know the BRK7E-11 is a step colder (technically, two steps colder) btw- i learned its technically two steps colder from an NGK dude. i forget why- he explained it. i'll ask him again. i believe it was because there isnt a ONE STEP colder plug for our car, so this is one step colder for OUR CAR. but technically its two steps colder on a normal car.

 

[changedman]

moving to performance...

 

[Bigg Tim]

The stock is BRK5E-11 for the P5 and MP3, not sure about the MSP. The higher the middle number the colder the plug. There is a one step colder plug, its the BRK6E-11, I have it in mine.

 

[Kick Ass Matt]

What are you running that require you to but in a 7E-11 plug?

BKR7E-11 means:
B - 14 mm thread diameter
K - 5/8" Hex size with projected tip
R - Resistor type plug
7 - Heat range
E - 19 mm thread reach (means the threads on the plug are 19 mm long
11 - 1.1 mm gap

BKR7 means same as above but without the "E" it means the threads are only 9.5 mm long.

Which means if you put it on, the electrode might not prodetrude out to the cumbus chamber, blocking the flame path...