Spark Plug Confirmation
My car is a 98 Trans Am with a lid and open cutout. I would like to know if br7ef plugs are too cold for my setup. I don't plan on making any further mods anytime in the near future.
It won't if your tune is clean at idle. Leave the plugs in on the street and make sure the tune is right. If you foul a 7 street driving it's because you've got too much fuel in the idle circuit, not because the plug is aggressive.
Trending Topics
The Best V8 Stories One Small Block at Time
If you're running around with an idle/part throttle tune that's a bit too rich a hotter plug will mask that. You put the colder plug in and are like, "WTF, this idles and drives awful."
I drive my car all the time with 9's in it, and it runs pretty much exactly the same as it does on a 7 or a 6. I got tired of having different heat range plugs sitting around, so I fixed the real problem.
I am pretty amazed that a 7 is causing it to act up though.... It's not like you've got a really cold plug in there.
I am pretty amazed that a 7 is causing it to act up though.... It's not like you've got a really cold plug in there.
I guess i never thought of it the way you just explained it. Makes sence though, because i've never ran a br7 on the dyno



