russell, i got a 5p last year and ran it at our rc pro state race . the motor give me trouble the hole race . i was q 2nd in the a main running in first place with a good lead and the motor flamed out twice cost me the win .i sent race factor a email i was hot . sorry my bad it was all my falt now the motor runs great now and i tell everyone how good go tech motors are . and i just got a 3 port for club racing i think it will be good for are short tracks not as much pinch as the 5 port when it was new but still tite . what pipe works best on the 3 port ?jammin with go tech!!!!