40/50 (45cid and down)
Modified
Max piston size .040" over stock
Any style prop allowed
Factory stroke crankshaft
No nitrous oxide
No supercharger
No turbocharger
60/70 (60cid and down No SST60)
Modified
Max piston size .040" over stock
Any style prop allowed
Factory stroke crankshaft
No nitrous oxide
No supercharger
No turbocharger
90
Modified
Max piston size .040" over stock
Any style prop allowed
Factory stroke crankshaft
No nitrous oxide
No supercharger
No turbocharger
Outlaw
Any 3 cylinder engine
Any modification
Nitrous Oxide allowed
Turbocharger allowed
Supercharger allowed
River Class
40/50 (45cid and down)
Boat must be at least 13' 6" long
Boat can be fiberglass fastcraft, falcon, bugbuster, hightide etc.
Wooden strip boats are allowed
Aluminum boats are allowed
Motor regulations will be the same as modified except compression
Compression should be no higher than 185psi
Round ear chopper prop only
Boats will be allowed faster starts than all other classes
No big bore motors
No Nitrous Oxide
No Turbocharger
No Supercharger
Factory stroke crankshaft
60/70 (60cid and down No SST60)
Boat must be at least 13' 6" long
Boat can be fiberglass fastcraft, falcon, bugbuster, hightide etc.
Wooden strip boats are allowed
Aluminum boats are allowed
Motor regulations will be the same as modified
Any style prop allowed
Boats will be allowed faster starts than all other classes
No Nitrous Oxide
No Turbocharger
No Supercharger
Unlimited River Class
Boat must be at least 13' 6" long flat bottom or V bottom
Any style prop allowed
Any 3 cylinder production motor
Unlimited motor modifications
No Nitrous Oxide
No Turbocharger
No Supercharger
Jon Boat/ Duck Boat Class
Boat must be at least 14' long
Boat must be made of aluminum
Boat can have a pad or can be flat bottom
Any prop allowed
Havoc RDB Drag is allowed
Boat must meet all safety requirements as stated in the general rules
There will be 3 classes
-
40-50 Duck Boat
-
60-70 Duck Boat
-
90 Duck Boat
All motors will fall under the Modified motor rules
Fishing Boat Class
Boat can be aluminum or fiberglass open boat (NO RACE BOATS)
15' boat length minimum
Center of prop shaft must be at least 3" below the bottom of the boat
Must disable hydraulic jack plates
Prop must be exhaust thru hub stock style prop (can run Yamaha black stainless prop)
No cleaver or chopper props of any style
Compression can be no higher than 150psi
Max piston size .040" oversize
Any production 3 cylinder motor
No big bores
No stroker cranks
No nitrous oxide
No turbo charger
No supercharger
No light weight flywheels
Must start from idle
850 Unlimited
Total boat weight with driver and all rigging must be at least 850 lbs
Any 3 cylinder production motor
Unlimited motor modifications
No Nitrous Oxide
No Turbocharger
No supercharger
Stock Carbureted V4 V6 V8
Any boat size
150psi compression max
No fuel injection (carbureted motor only)
No Nitrous Oxide
No Turbocharger
No Supercharger
Pro Carb V4 V6 V8
Any boat size
Any modification to motor except
Carbureted motors only
Any fuel
No Nitrous
No Turbocharger
No Supercharger
Stock EFI V4 V6 V8
Any boat size
150 psi compression max
Any fuel
Fuel injection or carbureted motors allowed
No Nitrous Oxide
No Turbocharger
No Supercharger
Pro EFI V4 V6 V8
Any boat size
Any modification to motor
Any fuel
Fuel injection or carbureted motors allowed
No Nitrous Oxide
No Turbocharger
No Supercharger
Outlaw V4 V6 V8
Any boat size
Any modification to motor
Any fuel
Nitrous Oxide allowed
Turbocharger allowed
Supercharger allowed