[weederr33]

Originally Posted by muckypuppy

Yeah, I was lucky mine was covered under warranty. I think mine may still have the MY13 spec springs and valves but I do know the tech said he 'shimmed the hell out of them' . My block required flushing but was given the all clear and then rebuilt with all new factory internals.
In response to the other part of your query I have been running a Cosworth supercharger for 2 years now with no issues, but will be looking at rebuilding the engine when it comes time to go higher boost. My kit runs just a touch over 7 psi so about the same as your Sprintex. Cosworth have hinted that around 8 psi is what they consider to be a 'safe' limit for engine longevity due to the way the rods are constructed, and that they are the weak link in the bottom end. Heres a link to a video with their chief engineer who briefly describes their testing process and how they came to this conclusion.

I posted that video in the Cosworth owners thread