NGK tr6 spark plugs?
#12
TECH Senior Member
iTrader: (27)
I'd gap them tight. Also, I've never noticed any difference between TR55s to the BR7EFs in how the engine ran.
I ran BR7EF at .032" and was having blow out issues when I tried to go above 12 psi. But, when I pulled the plugs I did find #8 @ .035". Got a new set and am going to run them out of the box (.022-.024")
I ran BR7EF at .032" and was having blow out issues when I tried to go above 12 psi. But, when I pulled the plugs I did find #8 @ .035". Got a new set and am going to run them out of the box (.022-.024")
#17
I've had great luck with C6 Corvette LS7 ACDELCO Part # 41104 iridium spark plugs. GM also uses them on all their supercharged engines and there is a rebate available right now. They are the same heat range as NGK TR6.
http://www.acdelco.com/pdf/Spark%20P...ate%20form.pdf
http://www.acdelco.com/pdf/Spark%20P...ate%20form.pdf
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