Thread: spark plugs

Originally Posted by BullzEye

Even though TR6's are 2 ranges colder, they would be fine in my Stock GTP?.. most people are telling me to use 606's on here.. or I just won't benefit the TR6's max potential until I have the other mods?.. but for now they will do fine?

If you run too cold of a plug your car will not run as strong as it can, and will get poor gas mileage. The colder range plugs are for killing knock retard once you start modding

well i'm reading everywhere i'm lookin now that TR6's are 1 heat range colder, and good for use on applications where 6 to 8lbs of boost are used, and car using Compression like Turbocharged, Supercharged, or Nitrous.

Don't the 2002 GTP supercharger boost around 6psi -8psi or so??..