http://www.pca.org/panorama/
The Jan ’08 issue (with 993 on cover) - page 71

According to Smith, he writes what over rev’s are on a ’05 997 S.

Range 1 7300-7500
Range 2 7500-7700
Range 3 7700-7900
Range 4 7900-8400
Range 5 8400-9500
Range 6 9500-11000

 

Wow! 11,000 rpm - Is that really possible?

 

lets try it

 

Doesn't the sport mode activate the hard rev limiter? Or is it the other way around? I forgot.

Either way, that may be the best way to avoid these over revs.

 

How is it possible to rev these engines, on misdownshifts I'm guessing, in the upper ranges without blowing the hell out of them???

 

This is not difficult to figure out. Mechanical over-revs can result in astronomical rpm's. It is doubtful that a range 3 or greater over-rev will occur without a missed downshift. I believe that a range 4 or greater can result in a bent connecting rod or worse. Big mistake, a 997S motor in the shipping crate is $20K+.

 

Yikes! 20K! I thought it was 10-15K?!?!

 

The hard rev limiter can only help you on the way up - not on the way down with a mis-shift.