ALL MOTOR BOLT-ON & TUNED Motor failure
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Man im sad to say I feel your pain! Windowing a block is never fun, but what you built after can make things even better then they were before! give the guys at MMR a call they make some quality builds and that new Gen2 block is quite sexy. Pissed it came out 4 months after my block was finished!
9 pages and still no really good picks of the carnage? I feel for ya op. The original title was a bit off and made people judge this book by it's cover. I think I would of home about this a different route and spoke directly to Shaun or my close mustang buddies before I leaked this on the inter web. But sometimes stuff like this is good because you learn things, 1. Shaun is still an awesome tuner with kick ass customer service. 2. Data logs are important and 3. That guy Hemi lol loves beefcake to death and supports him to the end but runs a BAMA tune. <<< hmmmmmmmmm
But serious note, we've all been here I've popped a few motors and Trans back in the LS days the key is to make it stronger and faster and keep having fun and learn from our mistakes.
And I have an aed e85 tune with a full bolt on cj intake car and Shaun tuned mine it took a while to data log but the car runs like a beast.
But serious note, we've all been here I've popped a few motors and Trans back in the LS days the key is to make it stronger and faster and keep having fun and learn from our mistakes.
And I have an aed e85 tune with a full bolt on cj intake car and Shaun tuned mine it took a while to data log but the car runs like a beast.
If... u actually read the 9 pages, you would have read why no complete tear down pics as of yet. I won't repeat the reason. As for everything else, Thanks for pointing out the obvious. Not being a smart ass, just pointing out FACTS! and the details you are mentioning don't even exist on these 9 pages anymore but yet, you want to travel down memory lane and bring up things for the new viewers and possibly add to the confusion. Its done... we all moved on joyfully with great progress. Agree? Even if "YOU ARE NOT HAPPY" there are No detailed pics further then whats been provided.
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Never knew so many SVTPERFORMANCE members had SLD
Colin's thought is over-reving. But even that, these motors on stock block have been tested above my shift poit @ 7500. His OTHER theory is, me shifting make to 1st from 2nd meaning to go to 3rd... I looked at him with a face :mj::fm::cuss::nono::shrug: And this is just hime speaking his mind since he also hasn't seen such carnage from a all motor. So... yeah :rollseyes
Jayvee,
I feel your pain last year getting the car dynoed clutch stuck to the floor on final pull. Pulled of the floor went to drive car home 2 miles later sounded like I shit the trans. So went out bought mangnum swap during the tear down found out the clutch center ring was torn and trans was alright so sold the trans for peanuts and been chasing TOB/slave issue for months finally got it straightened out but now have vibration problem which is either pinion angle or need to get drive shaft checked. Moral to my story went in for a simple dyno pull now spent 7k in parts and install and still chasing my tail. It happens and made me sick to my stomach but in the bigger picture small potatoes I have built motor ordered and once I get the driveline straight will turn up the boost. Take the lemons and make lemonade!
I feel your pain last year getting the car dynoed clutch stuck to the floor on final pull. Pulled of the floor went to drive car home 2 miles later sounded like I shit the trans. So went out bought mangnum swap during the tear down found out the clutch center ring was torn and trans was alright so sold the trans for peanuts and been chasing TOB/slave issue for months finally got it straightened out but now have vibration problem which is either pinion angle or need to get drive shaft checked. Moral to my story went in for a simple dyno pull now spent 7k in parts and install and still chasing my tail. It happens and made me sick to my stomach but in the bigger picture small potatoes I have built motor ordered and once I get the driveline straight will turn up the boost. Take the lemons and make lemonade!
Werd! :thumbsup:
Maybe. Gotta look at the piston first. Highly doubtful in my opinion though, I mean I know you're old
so maybe.I will say this, before I put the trans insert and shifter bushing in, I missed 3rd a few times, and bounced it off the rev limiter. Still runs like a champ, I'm sure you are fine on that.
3rd to 1st? I don't see how. Plus your first reaction would be to clutch it in immediately, from the sound and serious wheel hop that would be going on. Not apples to apples but Cam went from 3rd to 2nd on the bottle, and as you know his car still runs/ran like a champ.
This is how my freshly built longblock was blown. I have an automatic but what happened was while decelerating in 3rd after a dyno pull the transmission locked up in 2nd gear. Over revved and 2 rods ripped themselves out from 2 pistons and put some big holes in the block.
I bought FRPP short block after. Takes too long to build custom. Well, the pistons take forever to have built something like 8 week lead time.
PICS SENT THIS A.M. Via RI/Colin. Heads seem to check out fine, as of now. For precausionary reasons they are still going to be sent out for further examination and more so to check the valves. But WOW! :cryying: the destruction! Does not seem to be a "HOLE" through the piston at all as we all assumed from the spark plug channel pic. Wonder if the broken rod hit the piston to pop the corner of the cap off. :idea: :shrug:
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Yeah... I don't think Colin was either. He is completely scratching his head on this one.
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Sure does look like it broke from the bottom up as well.. Damn!!!
Rod broke first and took the piston out. RPM's...possibly a weak rod from the factory...maybe the motor wasn't balanced correctly from the factory? Sucks, I'd look into a 11.1 aluminator...good luck!
CPRsm
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Definitely rod came thru the bottom. You can see the ring which came up when forced from the bottom. Broken rod is the definite cause of the piston.
Why did the rod break? Doesn't look over revved. The tensile strength is compromised over revving and the piston breaks at the top of the cylinder on the exhaust stroke. Then the valves and piston show damage from collision. Don't see that here. Not completely impossible, but unlikely because of other evidence. Seriously doubt it was cylinder pressure that bent/broke a rod. Just not enough power. Hydraulic lock could have definitely bent the rod. An injector could have caused that, which could have lifted the head and let the coolant in. Or a coolant leak could have been the main cause. That will be easier to tell when the injectors are flowed. Rod bends at top dead center and heads back down. With a bent rod, its length is now shorter. Too short to clear the crank counter weight at bottom dead center. Crank smacks the the underside of the piston at the wrist pin and breaks rod. That's why the piston is there, and not at the very bottom of the bore. Breaks at bottom, rod smashes thru it, moves it up a bit.
There is enough remaining piston to see if it hit the crank. If the rod bent the big side will not spin free on the crank likely. Bent rods don't bend one way. They also like to bend and bind the bearing. This may have happened so fast there is no discoloration from heat or lack of oil. But might see some deformation in the bearing. Or, remaining rod in the pan might be obviously bent. So some other stuff to look for to confirm a bent rod is why it broke. Or tell us it wasn't bent.
So it doesn't look like it leaned out or detonated. Detonation could have lifted the head and started the chain reaction, but heads show no sign and neither does the piston. Still like to see the plugs, but sure they look fine. Some of the other stuff I mentioned is still possible, but hard to tell from here and seem very unlikely. But looks like a mechanical issue and not tune related. Sorry about your luck. Seems to to be one of those "Well shit" moments that couldn't be predicted.
Why did the rod break? Doesn't look over revved. The tensile strength is compromised over revving and the piston breaks at the top of the cylinder on the exhaust stroke. Then the valves and piston show damage from collision. Don't see that here. Not completely impossible, but unlikely because of other evidence. Seriously doubt it was cylinder pressure that bent/broke a rod. Just not enough power. Hydraulic lock could have definitely bent the rod. An injector could have caused that, which could have lifted the head and let the coolant in. Or a coolant leak could have been the main cause. That will be easier to tell when the injectors are flowed. Rod bends at top dead center and heads back down. With a bent rod, its length is now shorter. Too short to clear the crank counter weight at bottom dead center. Crank smacks the the underside of the piston at the wrist pin and breaks rod. That's why the piston is there, and not at the very bottom of the bore. Breaks at bottom, rod smashes thru it, moves it up a bit.
There is enough remaining piston to see if it hit the crank. If the rod bent the big side will not spin free on the crank likely. Bent rods don't bend one way. They also like to bend and bind the bearing. This may have happened so fast there is no discoloration from heat or lack of oil. But might see some deformation in the bearing. Or, remaining rod in the pan might be obviously bent. So some other stuff to look for to confirm a bent rod is why it broke. Or tell us it wasn't bent.
So it doesn't look like it leaned out or detonated. Detonation could have lifted the head and started the chain reaction, but heads show no sign and neither does the piston. Still like to see the plugs, but sure they look fine. Some of the other stuff I mentioned is still possible, but hard to tell from here and seem very unlikely. But looks like a mechanical issue and not tune related. Sorry about your luck. Seems to to be one of those "Well shit" moments that couldn't be predicted.
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:bowdown: Hello Jesus... My name is Josh. They call me JayVee...lmao!
Seriously, this is what this thread and many like it are suppose to consist of. Thanks you kind Sir. Shaun called me while I was FOOD SHOPPING by my damn self while the wife is away. I HATE FOOD SHOPPING! Every 5 min I am sending her a pic text of her sloppy writing shopping list clarifying wtf! Then every other item, I have to call or text because she will list Condensed Milk... Idk if u fawkers have shopped for something simple like condensed milk but DAMN! the options! :mj: Any how...enough of my :cuss: Nice read CPR!
Aftermarket tune/ Injectors = Ford giving you finger
blessing in disguise...most of the dealership guys suck...I seriously wouldn't trust them to not **** up putting air in my tires
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