Compressor wheel has escaped without any damage. Can't get the exhaust housing off due to one bolt that was over tightened at some stage. I can't get to it properly as the oil drain casting is in the way. But from what I can see the turbine wheel is also unaffected.

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605whp
Quarter Mile in 10.9 seconds @ 135mph /217kph
0-100 kph 3.2 seconds

Luckkyyyy as bad as it all is one less thing to replace

using the Perth-WRX mobile app

I managed to get the motor fully stripped down today.

I'm so annoyed this has happened because judging by the condition of everything the engine was mint.

Here's the bearings after 10,000kms



Anyway better pics of the damage:

Here's the valve that dropped.









I've ordered some New Pistons. Gone with Some Wiseco's this time.

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605whp
Quarter Mile in 10.9 seconds @ 135mph /217kph
0-100 kph 3.2 seconds

Oh noes. Hope my super techs dont snap off like that

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Doing it for all the wagons out there

What valves will you use this time around? Ferreira, GSC, Manley?

My condolences.

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The one perkent...

So what part do you think let go? The endo of the valve where it meets the retainer. Or even the retainer itself popping? I guess its pretty hard to conclusively say?

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Doing it for all the wagons out there

Retainer was still intact and the valve stem was still locked by the collets. The valve head has come off. Everything is pointing to just a failure of the valve.

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605whp
Quarter Mile in 10.9 seconds @ 135mph /217kph
0-100 kph 3.2 seconds

So no chance their is an issue with the cam causeing the valve to snap back harder than it normally should?

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The one perkent...

Any chance the valve spring force can be reduced and still cope under this sort of power?

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MY00 WRX. 89 Prelude. 99 CRV