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      05-09-2013, 11:08 AM   #121
Drives: 2009 E93 N54
Join Date: Jan 2011
Location: San Francisco

Posts: 841
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Originally Posted by shiv@vishnu View Post
Meth on track days is invaluable. It's just important to make sure that it is controlled and configured properly. It should also be integrated with the tune with more than a basic failsafe.

Sorry for your bad experience. Sometimes running street cars on tracks can be a learning process.


PS. Hydrolock is pretty unlikely. More likely a cracked piston or a spun bearing. But you won't know for sure until the head is lifted.

I'm with you. The pump's not capable of delivering enough to lock one cyl, and engines have been run with liquid pouring out of the exhaust valve. OP -- Was the nozzle in good shape?

Overpressurization and a defect might do it....seize a piston or equiv at high RPM and....bang?

That said I haven't read much beyond this - very interesting!

OP -- What's become of the damaged motor?
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