My impeller is toast. So before I go and buy a new one, I'de like to know what the difference will be if I get a "B" rather than the "A". The motor runs up to 4200 RPM. The inners in the motor are stock. The lower the letter the more the torque right? So if I run at 58 mph on gps @ 4200 with the "A" what will it do with a "B" impeller? The next adventure will be a Jet Boat cam. Thanks in advance. Here is a pic of my toasted impeller
http://members.cox.net/jetboater454/inview1.jpg
http://members.cox.net/jetboater454/impeller_1.jpg
Glad I took the time to take it apart!!!
Everything inside the housing and bowl look ok.