Brenticus

iTrader: (2)

okay so last year i put together a setup similar to gm stage 2 using ottp parts and used trifecta to do the tuning. this was before the current ottp stage 1 was available in a kit. anyhow, it's been running rich since i installed this and i got to wondering if this could be because i never switched to the 1 step colder NGK copper plugs. does anyone know if that would solve the occasional random misfire codes i've been getting? also i wanted to know why they go with 1 step colder instead of hotter?

Winkdogydog101

cause your running more boost is why not hotter also

the misfire is prolly due to gaping your prolly gapped at .40 and you need to be at .35 or .32 or even .30

Brenticus

iTrader: (2)

I'm actually already gapped at .035.

qwikredline

if you need to ask, then check with Josh at OTTP and just do what you are told to do. Random misfire codes come from too warm or a worn out plug.
Simply:
The heat range of the spark plug among other things is based on how quickly the heat goes away from the center electrode area; the colder the plug the better the heat control... If the plug is too hot ( stock or hotter) for your increased power/intake pressure /heat etc, the center electrode gets very hot and leads to failure, with runaway detonation and it will torch the piston...a hot plug in the wrong application will actually burn away its center electrode.