High Boost spark plug question
I wouldn't use a TR6 much over 700rwhp. The TR6 has a projected tip, and with boosted motors you really should use a non-projected tip spark plug.
TR6-7-750rwhp
TR7-750-900rwhp
TR8-900-1100rwhp
You should get the idea. Alot of people run more boost and make more power with a hotter plug, but it's not safe to do so. Keep this in mind. A spark plug is designed to pull heat out of the cylinder as well as give spark.
TR6-7-750rwhp
TR7-750-900rwhp
TR8-900-1100rwhp
You should get the idea. Alot of people run more boost and make more power with a hotter plug, but it's not safe to do so. Keep this in mind. A spark plug is designed to pull heat out of the cylinder as well as give spark.
TR6 is no good above 600hp imo. TR6's have a projected tip, (basically the porcelain sticks out past the base of the plug). this promotes detonation. i actually ran a 10-range NGK plug this year. I may try a 9 range for my next set, but again, stay away from projected tip plugs once you start making serious power
edit: OOPS, i pretty much said the same thing hunter02ss said, lol
edit: OOPS, i pretty much said the same thing hunter02ss said, lol
Just to clarify BR7EF is the part # for a NGK 7 heat range, non-projected tip with a resistor. I buy them at napa.
I ran TR8's in my car, but they messed with my radio and door locks (cause they have no resistor), so that's why I run the 7's
I ran TR8's in my car, but they messed with my radio and door locks (cause they have no resistor), so that's why I run the 7's
