/Users/jeffcurl/Pictures/iPhoto Library/Modified/2012/Dec 14, 2012/IMG_0993.jpg

Ok........and?

That explains a lot, I'm glad you showed us that

Yeah I know it did. Shit won't let me upload the pics. Well I'm at dinner so I'll do it when I get home.

Ok and?

Ok.......and? Hey nick have you put your dick deposit down for that tune at TS?

Lol

:snoopfacepalm:

Jeff's last dyno pull................


































http://img163.imageshack.us/img163/7794/diesell.jpg

Ruth....less. :mf_pcwhack:

Eh, they're jealous that their cars won't be as fast as mine.

The faster the car the more shit you break, I'll stay slow.

True, unless its built correctly for the speed.

LMAO, I forgot about that.

Amen to that! You can see where going fast got him. His car is in the shop most of the time along with his money. lol.

Please my car has been in the shop to get go fast goodies. This is the first problem I've had.

Pretty serious problem though, gotta admit. I beat mine mercilessly, 30k miles, hundreds of passes, not even a hiccup. Did they come up with a reason for the failure?

Nope.

So the pic that's on Facebook with the bent con-rod, that's the culprit? And they haven't figured out why it bent? Any damage to the top of the piston?

The only problem we found was the bent rod. Piston tops look perfect, valves are perfect not even the slightest hint of detonation, or anything lean related. We have spoken to our local ford dealer, they have informed us that they have seen a hand full of the new 5.0 mustangs come in with a locked up motor that was a result of a bent rod. Seems to becoming a common thing with these cars. It will come back better then ever!

Maybe some motors are getting weak rods due to tolerances in the material?

Not sure, there is also another common thing, most all of them that have this problem, have around 5k miles....

i know you said the pistons are good but can u tell which one he has

I now have each piston revision for the Coyote GT.

The late '12 piston appears to be the same as the 11-12 piston except it has the phosphate coating. The '13 piston has the coating, the extra oil drain back passages, and the gas groove in the second ring land.

From top to bottom: 11-12 piston (03/22/2010-12/08/2011)....Late '12 piston (12/08/2011-02/27/2012)....'13 piston (02/27/2012-current):


11-12 piston:
http://i531.photobucket.com/albums/d...3/1e01e96c.jpg

late 12
http://i531.photobucket.com/albums/d...3/8609e323.jpg

13
http://i531.photobucket.com/albums/d...3/1740e2e4.jpg

Maybe it's the fact the cars weren't broken in properly? They say that break in is first 5k or so...

Assembly line variances, call it what you will (is it a "Friday" engine or a "Monday" engine), still a bit scary to think it can, and does happen. This makes two that I know of for sure now. If it is indeed becoming a known issue, maybe this will finally prompt Ford into giving us a "real" set of con-rods.

I had the tune loaded, and mine at the track, on Day 2. I think it's more luck of the draw than anything else. Ford puts together a few hundred of these things a day, shit happens. Not nearly as much as it used to, but it still happens. That's why we get warranties.

An engine is an engine. They all have gaskets, rings, bearings, etc. How do you think guys with race cars break their engines in? they have no way of putting 5k miles on it. Some engines wont even last 500 miles before the rods need replacing. I think its more a shitty luck of the draw. IMO

That was more of a thinking out loud post.

I will agree with you on the race cars though. Takes A LOT of quarter mile passes to get to 5k. Lol

A bent rod isn't what caused the engine to lock up.

Something caused the bent rod in the first place. A locked up rod bearing will do it, hydrolock will do it, sometimes too many RPM can do it (rare). How does the rod bearing look?

The bearing looked new not even the slightest sign of wear. The rod was bent in a way that it was wedges against the counter weight on the crank and twisted so that the crank could not turn. The car was running perfectly fine, pulled it on the dyno, swapped the injectors out strapped it down and when we tried to start it, it rotated maybe once then a clunk and nothing after that.

How do i find out the build date of my car?

Is it not on your door jamb?

No idea. Havent looked.

Thanks to nick for figuring it out for you

If you guys want a good and funny read here you go. Steve starting shit over at svtperformance. Lol jk Steve I know those guys don't have a clue.

http://www.svtperformance.com/forums...0-miles-3.html

Plus I wonder if Clint will chime in on that thread. Lol

If they knew they didn't have a clue of a clue that would be one thing. It's amazing some of those guys even know how to turn the key on their cars.