Official Blown Engine Thread
, but not sure why it wasn't spinning before. Still going to send it out to CRBD for an inspection/rebuild.
Oct 30, 2017, 03:10 PM
#37
EvoM Guru
iTrader: (1)
Did the timing belt fail at high rpm?
Oct 30, 2017, 04:37 PM
#38
Approximate Date: December 2015
Year: 2006
Mileage: 100,000
Modifications: Stock Block, Full bolt ons (stock turbo), Dual map tune E85/91
Power: ~400WHP/411WTQ
What Happened?: Piston #4 melted driving on track at Laguna Seca
Solution: Complete rebuild with brand new block, forged internals, etc.
Why?: Not 100% sure, but the consensus is running lean just on that cylinder (despite running E85). Possible injector malfunction.
Thread: https://www.evolutionm.net/forums/ev...week-hell.html
Year: 2006
Mileage: 100,000
Modifications: Stock Block, Full bolt ons (stock turbo), Dual map tune E85/91
Power: ~400WHP/411WTQ
What Happened?: Piston #4 melted driving on track at Laguna Seca
Solution: Complete rebuild with brand new block, forged internals, etc.
Why?: Not 100% sure, but the consensus is running lean just on that cylinder (despite running E85). Possible injector malfunction.
Thread: https://www.evolutionm.net/forums/ev...week-hell.html
Oct 30, 2017, 04:48 PM
#39
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Join Date: Sep 2009
Location: Pinckneyville, Illinois
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Has to be a rod that caused the hole in the pan and the block to crack. Keep us updated.
Oct 30, 2017, 05:13 PM
#40
Account Disabled
Surely a catch can would fix it?
Plus making the vents all bigger..........it always works.
It even stops the dipstick from blowing out.
Check the sparkplugs.........there's oil on the threads.
Tells you you've broken the ringlands.
Last edited by RightSaid fred; Oct 30, 2017 at 05:18 PM.
Oct 31, 2017, 07:30 AM
#42
yep, only the ring was holding that piston together
I don't think so as the belt was in good shape when we pulled the head off. Maybe jumped timing??
That looks like an extreme example of broken ringlands.
Surely a catch can would fix it?
Plus making the vents all bigger..........it always works.
It even stops the dipstick from blowing out.
Check the sparkplugs.........there's oil on the threads.
Tells you you've broken the ringlands.
Surely a catch can would fix it?
Plus making the vents all bigger..........it always works.
It even stops the dipstick from blowing out.
Check the sparkplugs.........there's oil on the threads.
Tells you you've broken the ringlands.
. I just got my hands on a STM 3port VTA OCC just incaseMaybe I should start a build thread on this
Oct 31, 2017, 05:24 PM
#45
Account Disabled
Just ongoing and excessive detonation.
Once they get a bit of blowby, the oil reduces the octane rating and it detonates more and more and more.
If you've got an aftermarket ECU, the knock detection won't work.