This may get moved, but I don't know where else to post this to get a mechanic's opinion.

This video show's Floyd reving the engine, and then you can hear a strange crunching sound immediately after. Did he mess up the engine?

The sound is at the 8:00 minute mark of the video, so while it is downloading, I would advise shutting off the volume because Floyd is very annoying.

http://www.doghouseboxing.com/Video/BenzVid020909.htm

 

perhaps it was just the exhaust farting.

 

Cold rev limiter perhaps? Kind of like how vtec won't engage in the S until the engine is properly warmed up?

 

doesn't sound like a rev limiter...it was a higher pitched squeak rather than a fuel-cut-off type of sound.