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.

 

damn RIP

 

Sorry to hear that Time to rebuild...

 

Destruction, terror, & mayhem. No matter what Im always looking at my boost gauge whenever Im under full boost, you never know....

 

Do you have a map sensor logged to see what happened boost wise?

Were you on stock rods and pistons? What turbo?

 

The thing about looking at guages, buy them time you see it, it's too late.

Time for a BR Stage III 2.0

 

Yikes, fun and games.

 

I was not logging boost. Boost was set to 30-32psi, it must have went over 40 for that kind of load.

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

 

wow....shi*ty deals

 

Those pics make me sad.

 

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-

 

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 Internals

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.

 

Good Luck with your rebuild.

John-

 

Some of the worst carnage I have ever seen. You literally cracked the block in half.