The capacity for two stroke skis G.P. rises up from 800cc to 900cc.The capacity for four stroke ski G.P. with turbo or blower goes down from 1.100cc to 900cc. Only one unit must be produced to receive the homologation. The hull, including upper and under hull are free but must stay in the sizes from the I.J.S.B.A Ski Division rules. Sponsons must be IJSBA race legal. You can use any kind of composite materials. You can use any kind of engines but it must be based on a homologated ski or R/A engine If you want to make your own engine, this engine must be homologated by the EJSBA only for the G.P. classes. Full modifications are allowed (crankshaft, cylinders, pistons, crankcases and more) Two-cylinders maximum. Minimum weight is 114 kg. Transmission and pump are free but must stay inboard. The decision from the Technical Director is final about homologation of any G.P. ski.
