Adjuster
Supramania Contributor
What gap are you running?
Also what heat range iridium plugs? (Any time your pushing this much, you might want to run one range or two colder than stock anyhow.)
I've run Iridium plugs, and if you don't detonate, and run a .28 gap, they do not misfire at all in my experiance.
Run a larger gap than .28 on any plug, with this much boost, and your going to get some misfires for sure. The nice thing about the Iridium plugs, is they seem to run better at idle in my car, and they don't load up or get dirty as quick when your just tooling around town on colder plugs. (A real problem with some plugs when your running colder heat ranges, and your not really flogging the engine all the time.)
Good luck. (I have broken two plugs due to detonation, high boost, about 27psi and then some, and pump 91 octane fuel.... ) High pressure is from the E-01 data, and it's generally about 3psi lower than my Omori gauge. (IE, the Omori reads 20psi, but the E-01 reads 17psi...) So it could have touched nearly 30psi on that run... Dang boost controllers and crappy owner/driver tuneing skills. Yes that would be me.. LOL)
Also what heat range iridium plugs? (Any time your pushing this much, you might want to run one range or two colder than stock anyhow.)
I've run Iridium plugs, and if you don't detonate, and run a .28 gap, they do not misfire at all in my experiance.
Run a larger gap than .28 on any plug, with this much boost, and your going to get some misfires for sure. The nice thing about the Iridium plugs, is they seem to run better at idle in my car, and they don't load up or get dirty as quick when your just tooling around town on colder plugs. (A real problem with some plugs when your running colder heat ranges, and your not really flogging the engine all the time.)
Good luck. (I have broken two plugs due to detonation, high boost, about 27psi and then some, and pump 91 octane fuel.... ) High pressure is from the E-01 data, and it's generally about 3psi lower than my Omori gauge. (IE, the Omori reads 20psi, but the E-01 reads 17psi...) So it could have touched nearly 30psi on that run... Dang boost controllers and crappy owner/driver tuneing skills. Yes that would be me.. LOL)
