:icon18: This is my guess.

Pulley... Sam did warn of this before, with the aftermarket ones having no dampener...

All I can say is OMG! Subbed as well............

Engine overspeed could potentially sling rods, but not bust pistons. Destruction like this just about had to be caused my preignition and/or severe detonation.

In for updates. Sad to see an NA car go out like that.

Believe me, there is no way the pulley did that. It would be instantly noticeable the instant you crank your car if your pulley is having detrimental effects. A 1/8in piece of rubber is not going to be the difference between a perfectly fine motor and a destroyed one.

This looks more like over revving with bad AFR's and detonating. Causing combustion too early in the stroke can and will cause catastrophic failure. Google and educate yourself.

At least the car isn't getting scrapped, GTM FTW... And the owners wallet.

Before this build thread goes any further I think everybody wants to know what really happened to this engine.

sent from my SAMSUNG SINGLE TURBO SGH1717

sub, yea

In for more details.

4 days and still no clue what happened? WE WANT DETAILS! I am still refusing to believe this happened just by driving an untuned car with bolt ons.

They most likely will not tell us per customer request.

I wonder if they will let those LTH go? :)

street racing and a miss shift i assume, red line 4th shift to 5th and go into 3rd...

We've given you all the details.

I will say that there was no evidence of detonation: the valves weren't burnt, the pistons weren't melted or pitted. Granted, only the owner of the car knows what happened and we aren't necessarily privy to that information in the first place. Also, you need to remember that not every car owner really knows what is going on under the hood or what they did to cause a catastrophy. I've seen many a "deer in the headlights" looks from people with broken stuff. They just don't know and simply aren't able to understand that by doing X, Y can happen. By them not knowing, they have no way of communicating relevant information. I can't tell you how many times I've heard "I was just driving along normally, and suddenly it just blew up". They usually forget that the night before when they were ripping on it with reckless abandon something subtle happened that they didn't notice and the next day the nature of the true damage reared its ugly head when they were casually taking off from a stoplight and they're like "OMGWTFBBQ just happened!?!?...I didn't even do anything!!!".

Ultimately, there is always a level of uncertainty when modifying cars. The bottom line with this particular failure is that we've given you guys all the facts and you must draw your own conclusions as to the cause...not that you'd listen to us anyway as evidenced by some people's posts.

Also, there was no Nitrous Oxide involved or signs that it was ever installed. If there had been, don't you think we would have mentioned it?

Well with the TT kit they don't need them, so up to the owner if he wants to sell them.