Normal
I think this is all possible and the misfire condition itself can make it worse. The tune was almost certainly over boosting the turbos. The stock turbos have little room for spinning faster, without losing a bunch of efficiency and increasing amounts of heat. If the gap wasn’t correct in the first place, that could certainly have led to premature failure.Spark plugs lead a hard life. There’s a lot of cylinder pressure and they’re passing a super high volt spark that’s required to work 100% of the time under challenging conditions. I don’t think this was simple overtorquing of the plug or ham ****** install, I’d suspect a combination of inarticulate plug gap, higher than stock boost and heat as a side effect, possibly wrong heat range for the application - I’ll defer to the tuners here, all stressing the plugs significantly more than stock. Give it a good test drive when you pick it up. get the truck up to operating temp first- Engine AND transmission, then give it some WFO throttle. Make sure you’re symptom free before taking it home as “fixed”. once you do, make sure the truck is stable before modding.
I think this is all possible and the misfire condition itself can make it worse. The tune was almost certainly over boosting the turbos. The stock turbos have little room for spinning faster, without losing a bunch of efficiency and increasing amounts of heat. If the gap wasn’t correct in the first place, that could certainly have led to premature failure.
Spark plugs lead a hard life. There’s a lot of cylinder pressure and they’re passing a super high volt spark that’s required to work 100% of the time under challenging conditions. I don’t think this was simple overtorquing of the plug or ham ****** install, I’d suspect a combination of inarticulate plug gap, higher than stock boost and heat as a side effect, possibly wrong heat range for the application - I’ll defer to the tuners here, all stressing the plugs significantly more than stock.
Give it a good test drive when you pick it up. get the truck up to operating temp first- Engine AND transmission, then give it some WFO throttle. Make sure you’re symptom free before taking it home as “fixed”. once you do, make sure the truck is stable before modding.