MY #1 CHOICE WOULD BE A NEU MOTOR . NEU MOTORS ARE A BIT COSTLY BUT HOLD A LOT OF RECORDS . LEOPARD MOTORS ARE NICE TOO .BOTH MOTORS HAVE WATER JACKETS FOR THEM . I PUT A NEW 1515 IN A 27" CATAMARAN RUNNING 4S AND GOT 68 MPH ON THE GPS. ALSO I HAVE AN OLD DUMAS SKI DADDLE 36" RUNNING A LEOPARD LBP3674 - 2650KV WITH 3S AND GET ABOUT 40 MPH . I AM NOW WORKING ON A 36" GENISIS CAT WITH TWO LEOPARDS . PERFORMANCE TO BE SEEN !!!! I HOPE THIS HELPS YOU OUT SOME .
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