I am having some issues with WOT near 13 pounds of PSI. The car has about 138,000 miles. I installed the charger around 70 I believe. I changed the plugs then and that was the only time. I have ordered the NGK 3787's and will be installing them tommoro. I hope this solves the issue. I have some other ideas if not but let's not go there yet. lol
13 psi is borderline needing 2 steps cooler than stock plug..
Assuming that you are stock compression ratio..... could you post a picture of the firing electrode and insulator?
jason norwood wrote:13 psi is borderline needing 2 steps cooler than stock plug..
Assuming that you are stock compression ratio..... could you post a picture of the firing electrode and insulator?
this was where i was at before i sold the EVOFIRE. meth and colder plugs were in the future, but i was polished ported, and 3.0 pulley. would hit 16 PSI on a good day.
Check the other link and you can see my old plug
