Ford says don't modify your 2011-2012 Mustang 5.0 or your warranty is void

[trucker]

that piston looks to have been run very lean or run on NOX
they sure as heck don't melt from running rich unless they are shit already

[JoeT]

Hey its just the photos that are in the actual Ford TSB.

[Jacostang]

Dave, how do you like fro ford racing tune? These issues makes me want to get a shelby over the 5.0 even more.

I love it, it eliminates the skip shift and makes it even that more responsive, it wont tax out the engine.. The problem with the afternmarket tunes is that they are pushing them beyond redline which mine wont do it shuts down and my dash turned RED when I Pushed it, scarred me at first but it was protecting itself from me!!! The RED dash lights was cool though!

[Jacostang]

Thanks for posting this I missed this. Now you've helped me make up my mind 100% I do not want a 5.0 anymore. One wrong mod and your motor blows up. No thanks!

Sky is not falling, the same thing happened when the pushed the 4.6 over the edge too. A Few GT500's motors blew when these tuners pushed them too far...

[JoeT]

I think what I found informative is that the 5.0 motor is pretty much maxed out in the horsepower department, without making some big changes structurally.

[05mustangman]

Well that kind of kills the ability to supercharge the engine without having to do a crap load of engine mods. Like dave said people have probably blown up their engines by not doing something properly and then complained to Ford about it. So this might just be a precaution from Ford. I hope that is the case after all the hype around the 5.0 engine.

[JoeT]

Ya who knows, I dont know anything. I cant figure out even exhaust for mine. :)

[05mustangman]

Joe are you still running the factory exhaust?

[Jacostang]

Its like any new engine, here are the specs and then aftermarket takes over and see's what they can and cant do with these engines. And who know exactly what one person is doing or how they are driving their cars. I dont know of any car manufacturer that would guarantee an engine after it was modded by a non Ford Authorized Part. Would You? Mass produced parts fail all the time, even $100K motors when they are pushed too hard, one little glitch and K pow!

[JoeT]

Joe are you still running the factory exhaust?

Ya still running stock. Its not terrible just would like to hear it a little more and don't want drone. I'm so picky its hard to make a decision.