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**Soulowd** · 02-06-2014, 11:47 AM

Originally Posted by DirtyD

It's not an issue with #8, per say. Get a tune from a legitimate tuner, a custom tune, that has been datalogged to ensure accuracy, and you won't have problems.

Sean said last night it wasnt the SCT tune because I asked him specifically was it me putting on the tune? and he said no. Acted like it was more of a manufacture defect that tended to happen on 2011-2012's at random.

**DirtyD** · 02-06-2014, 11:54 AM

Originally Posted by Soulowd

Sean said last night it wasnt the SCT tune because I asked him specifically was it me putting on the tune? and he said no. Acted like it was more of a manufacture defect that tended to happen on 2011-2012's at random.

Number #8 comes down to being a combination issue with the tune and a design flaw by Ford. If the car is running too lean, it causes #8 to get hot and pop. So yes, it could be the tune. However, if your car is an early 2011, those were seem to have been more prone to having #8 happen prematurely, from what I remember.

**Crimson600+HP** · 02-06-2014, 12:39 PM

Originally Posted by DirtyD

Number #8 comes down to being a combination issue with the tune and a design flaw by Ford. If the car is running too lean, it causes #8 to get hot and pop. So yes, it could be the tune. However, if your car is an early 2011, those were seem to have been more prone to having #8 happen prematurely, from what I remember.

Truth in the sense of a tune running too lean. But this is happening to some cars that have not been modified or tuned at all (especially in the '11-'12 models). It simply comes down to a design flaw. The number 8 cylinder is the first to fire and runs the hottest no matter if you are stock, FI, or nitrous. The placement and design of the stock rings are not well suited for this increased heat which cause some to fail (most likely tolerances and differences in the manufacturing process). Once you add increased HP or a lean tune, it accellerated the process.

I imagine over time, we will see more rings melt due to normal use.

All I say is at least you didn't blow a chunk out of your piston. Good luck.