I finally got my 2003 GTX SC out today. After finding this forum last fall, I spent the winter reading and upgrading the ski. Iíve now solved my cavitation on acceleration and many other issues with the following items.

New pump
New impeller stock pitch
Carbon seal
Engine alignment
Opsa delete
Custom exhaust
Removed flame arrester
Custom intake
Rebuild supercharger
Oil catch can

The ski now seems to hit the rev limiter at 3/4 throttle 7600 rpm and 55mph on gage. I think I may need to start playing with the impeller to see if I can get a couple more mph.

Any advice would be appreciated.