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Blown block due to bad tune???

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Old Jan 1, 2012 | 07:43 AM
  #16  
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It's was set at 29 psi. Second gear at 5000k-6000. I have the dyno sheet I can up load it at tonight. When I'm out from work.

Originally Posted by AlwaysinBoost
Really hard to say sitting behing the computer what actually happened.

how much boost were you running?
what were you doing when the motor let go?

upload the 'toon' and some logs (if you have them) so we can take a look.
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Old Jan 1, 2012 | 07:46 AM
  #17  
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Evolution dynamics

Originally Posted by MaLo EvoVIII
Care to give the name of the shop you went to?
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Old Jan 1, 2012 | 07:56 AM
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I road tuned a guys car in the spring. 112k on the stock engine. Just had head studs and 272 cams. He thought it would be a good idea to run a 6262 turbo. I said okay. Got cruising down, started easing into boost, never even got past 15 psi. Timing was less than 5 deg as I worked on leaning out 10.5:1 afrs. #1 rod let go on the second pull. Tore down the block and #2-#4 bearings were in good shape and piston tops didnt have any signs of detonation or knock. Proved that sometimes parts just fail.
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Old Jan 1, 2012 | 08:46 AM
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130K and 29 psi then sploded? Sounds like bad rods. replac'em with good rods !!
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Old Jan 1, 2012 | 09:08 AM
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From: DFW
I have 126mi. With some an issue with the exhaust valves in cylinder four and doing fine. I run a 3582 and meth daily at 29psi. I ran a FP Red for a couple years before that.


I began tuning my own car due to being uncomfortable with a tune I had received locally. I was running pig rich with no boost leaks.

Do you have any datalogs? Sorry to hear about your loss.
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Old Jan 1, 2012 | 09:13 AM
  #21  
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Seems like a tune. The very next day? What were your afrs? idle,cruise and WOT?

I checked compression on my engine before before doing anything.

Your torque/timing load was probably too high for the stock rods.

Sorry to hear.
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Old Jan 1, 2012 | 09:35 AM
  #22  
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Originally Posted by blackevolution8
I road tuned a guys car in the spring. 112k on the stock engine. Just had head studs and 272 cams. He thought it would be a good idea to run a 6262 turbo. I said okay. Got cruising down, started easing into boost, never even got past 15 psi. Timing was less than 5 deg as I worked on leaning out 10.5:1 afrs. #1 rod let go on the second pull. Tore down the block and #2-#4 bearings were in good shape and piston tops didnt have any signs of detonation or knock. Proved that sometimes parts just fail.
isn't 5* high for peak boost, even at 15psi??
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Old Jan 1, 2012 | 09:39 AM
  #23  
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Yeah could be too. Most people blame the tune though. Weird thing is it didn't blow on the dyno. But all I can do is tare apart and built it.

Originally Posted by blackevolution8
I road tuned a guys car in the spring. 112k on the stock engine. Just had head studs and 272 cams. He thought it would be a good idea to run a 6262 turbo. I said okay. Got cruising down, started easing into boost, never even got past 15 psi. Timing was less than 5 deg as I worked on leaning out 10.5:1 afrs. #1 rod let go on the second pull. Tore down the block and #2-#4 bearings were in good shape and piston tops didnt have any signs of detonation or knock. Proved that sometimes parts just fail.
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Old Jan 1, 2012 | 09:42 AM
  #24  
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Too bad core is destroyed lol

Originally Posted by whtrice
130K and 29 psi then sploded? Sounds like bad rods. replac'em with good rods !!
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Old Jan 1, 2012 | 09:43 AM
  #25  
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From: DFW
Originally Posted by saulwitdaevo89
Evolution dynamics
Whoa...

the tuner said it was due to the milage
Any other details besides this?
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Old Jan 1, 2012 | 09:45 AM
  #26  
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Yup next day. Went to pick up my nephew from boxing second gear at 5000 and bam!! Funny thing is I told him before he tuned please check the timing. Don't know if he did when I told him to.

Originally Posted by 4RETECH
Seems like a tune. The very next day? What were your afrs? idle,cruise and WOT?

I checked compression on my engine before before doing anything.

Your torque/timing load was probably too high for the stock rods.

Sorry to hear.
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Old Jan 1, 2012 | 09:51 AM
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Yup said that Evo 9 turbo and e85 is not a good combination due to that it creates a lot of torque. S*** I see that combination everywhere.

Originally Posted by IMPdemon
Whoa...



Any other details besides this?
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Old Jan 1, 2012 | 09:52 AM
  #28  
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catch 22

you went to your tuner to get the car mapped to its full potential and he did that, in fact he did it so well your rods wernt able for the torque.
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Old Jan 1, 2012 | 09:53 AM
  #29  
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I only have the dyno sheet will post it tonight.
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Old Jan 1, 2012 | 10:41 AM
  #30  
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We have very similar mods, had my car tuned made 407whp and 411wtq at 28psi on a dyno jet. Soon as I left the shop I did a 2nd to 3rd gear pull the car felt amazing so I continued on my 450 mile journey home, as I was cruising along 70-75mph on my phone talking away BOOM, car lost all power and smoke pouring out of the hood. Pulled over and found oil everywhere, so had the girl friend come down with a pickup and rented a u-haul and got the car back home. Tore down the engine and found #1 rod played peek ah boo continued to tear into the enigne trying to find answeres only to find out everything looked great bearings and everything looked fine. Only thing I found was my vacumn hose to my egr popped off so my conclusion was just too much torque for the stock rods. and that was with 24,000 miles on my Evo 8.
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