Spark Plugs

[SmoknCobra03]

Trying to get an idea of what plugs everyone is running and their experience with them. I'm currently running NGK TR6's looking for other options.

Plugs
Heat Range
Problems

Thanks in advance.

 

[SIr RicCuS]

From my understanding...

Low boost - TR6's
High boost - BR7EF's

 

[itSSlow98]

I run br7efs, 20psi.

 

[Droppintwins]

Has anyone tried brisk silver plugs? If yes what was your experience with them? They claim great gains and reliability on turbocharged engines..

 

[chrisquirk187]

BR7E FTW. Gap em at .24 to be safe or run a boost a spark and go with a .32

 

[Ryan2KRedL]

I run TR6 (4177) all the time in my combo, even at high boost.
I gap them down to about .026".

I also ran the BR7's and they worked fine too.

Ryan

 

[RussZTT]

Depending how much power you are making will depend on gap. More power the smaller the gap. I'm running the BR7E at 15psi at little over 700rwhp with a .24 gap. I'll lower it to about .22 or .20 when I put some good gas in it for higher HP.