4g63 carnage - Post Mortem
Oct 17, 2009, 12:40 PM
#1
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4g63 carnage - Post Mortem
I thought I'd go ahead and post a few pics of the destruction of my block. The cause was a ruptured wastegate line, probably caused be removing and reinstalling it too many times. I had Evoscan running at the time and caught the destruction in a log. The car was making about 500whp and running E85. This tune was seeing a peak load of 410-414 at around 4700-5000-rpm and pushing 2800htz up top. The car was running a single modified walbro and Aquamist 100% meth. At the time of the incident the log shows a peak load of 460! @ 4700rpm in 4th gear, at point the afr climbed from the normal 11.8 to 12.7 and boom. The log shows knock at 4800rpm of 30, I'm not sure if it was det or just the sound of the rod snapping a whipping around. There is about a thousand pieces of piston bits left in the pan, the rest in on the freeway.
When I tore down the engine I found debris in the intake and exhaust manifolds.
E85 keeps pistons clean.
When I tore down the engine I found debris in the intake and exhaust manifolds.
E85 keeps pistons clean.
Last edited by cmj; Oct 18, 2009 at 02:22 PM. Reason: Added more pics
Time to rebuild...
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Oct 17, 2009, 05:26 PM
#8
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Stock block
FP Red / cams
all the usual bolt ons
Mrfred's extended boost cut tables might have saved my block, too bad they came out a week after it happened.
Timing was set to 1 degree in the area where the block went boom
Oct 17, 2009, 07:18 PM
#11
Dang, that looks just like my failure from last month:
https://www.evolutionm.net/forums/ev...k-carnage.html
Sorry to hear about your bad luck.
John-
https://www.evolutionm.net/forums/ev...k-carnage.html
Sorry to hear about your bad luck.
John-
Oct 17, 2009, 07:33 PM
#12
Im assuming you're running stock internals?.......Based on your performance specs, sounds like the poor 4G63 hit its max.......Gotta love that iron block though.........I may post your thread link on our local forum so my tuner can read your story........Hope you plan a re-build.......Peace
Oct 17, 2009, 08:20 PM
#13
Im assuming you're running stock internals?.......Based on your performance specs, sounds like the poor 4G63 hit its max.......Gotta love that iron block though.........I may post your thread link on our local forum so my tuner can read your story........Hope you plan a re-build.......Peace
Stock IX ported turbo
Magnus intake mani
PTE 1200s
modded WB255
S2 cams
fp springs
ETS 4" IC w short route pipes
Megan O2
full 3" exhaust
e85
a 4g64 block is almost done.
