CR9EK
Senior Member
1st Gear Member
Joined: Sep 2006
Posts: 2,448
From: Sacramento
RE: CR9EK
C = 10 mm
R =Resistor Type
9 = Middle Heat Range (Range from 2 (hot)-11(cold))
E = Thread Reach 19 mm (3/4")
K = 2 Ground Electrodes
I am not sure what you are comparing the plug to but the info above came out of my NGK Book at the Shop...hope it helps.
R =Resistor Type
9 = Middle Heat Range (Range from 2 (hot)-11(cold))
E = Thread Reach 19 mm (3/4")
K = 2 Ground Electrodes
I am not sure what you are comparing the plug to but the info above came out of my NGK Book at the Shop...hope it helps.
Senior Member
1st Gear Member
Joined: May 2008
Posts: 289
From: Santa Fe, NM
RE: CR9EK
ORIGINAL: suprakawigrl
C = 10 mm
R =Resistor Type
9 = Middle Heat Range (Range from 2 (hot)-11(cold))
E = Thread Reach 19 mm (3/4")
K = 2 Ground Electrodes
I am not sure what you are comparing the plug to but the info above came out of my NGK Book at the Shop...hope it helps.
C = 10 mm
R =Resistor Type
9 = Middle Heat Range (Range from 2 (hot)-11(cold))
E = Thread Reach 19 mm (3/4")
K = 2 Ground Electrodes
I am not sure what you are comparing the plug to but the info above came out of my NGK Book at the Shop...hope it helps.
Senior Member
1st Gear Member
Joined: Mar 2006
Posts: 4,242
From: Keller (DFW), Texas
1st Gear Member
RE: CR9EK
ORIGINAL: fask
CR9EK
what is the deal with this plug? Is it hotter or colder or the same?
What is the power gain on a stock engine?
Are the gains tried true and proven?
Why does it make more power?
CR9EK
what is the deal with this plug? Is it hotter or colder or the same?
What is the power gain on a stock engine?
Are the gains tried true and proven?
Why does it make more power?
