Originally Posted by
norbit2
What is the difference (besides what is on RB's website) between the B.9 H.9 J.9 S.9 and WS.9 I have been out of the hobby for a while and I am a big RB fan. I have always ran a WS7 so I guess all these knew motors in comparison to that. Also is the WS7 3 a big difference. Whats the most and least powerful or what are the different power bands. Thanks
The WS7 3 is several years old, if you really like these engines go with the WS9 as it is just like all the WS7 engines you are used to only it has a turbo plug and uses the MES exhaust system that gives it a little more power as well. If you want the most powerful you want the B9 or soon to be B10. The Shark9/Cross10 are basically the same engine and offer almost as much power as a B9/10 with better fuel economy. Any of the other engines are really just sport engines and probably would not satisfy you if you have raced before.