Total Cu. In. Displacement Min. Boat Length Min. Wt.-Boat, Engine, Driver
45 to 49.9 cu. in. 13’ 900 lbs.
1) Boats must be molded V-bottoms.
2) Capsule and roll cages are allowed.
a) Boats with less than 20” of molded depth at the driver’s seat (external keel to top of gunnel) must have a roll cage per APBA Formula
V class specs.
3) Driver’s seat must not be more than 36” aft of midships.
4) Steering: Mechanical push/pull (Ride Guide style) or Cable and Pulley Steering is allowed per APBA OPC standards.
5) Engines must be stock production and mass marketed class E (49.99 cu. in. max. total piston displacement). A .030 overbore is allowed.
6) Power trim is not allowed. Engines with factory power trim must be operable at the transom only, or disconnected. In addition, all engines
must be tied down to prevent kick-up.
7) Thrust jacks and upper mount snubbers are allowed. (No solid mounts allowed.)
8) Engine Modifications:
a) Tilt switches, oil injection and rev limiters may be rendered inoperative.
b) Two 1 inch diameter holes can be drilled in the lower unit above the cavitation plates (readily plugged for testing and water skiing).
c) Cosmetic appearance may be changed.
9) Propellers - any through hub allowed.
10) Engines must be mounted such that when trim parallel to running surface, the center line of the propeller shaft is located 5 inches below the
running surface.
11) 20-inch midsection only is allowed.