[rjackh90]

I just recently bought a a 1652 vented tunnel southfork aluminum boat with a 40 horse merc 2 stroke on a manual jackplate. On plane, I get a lot of spray to either side of the motor with some splashing over the transom. After a few seconds, the tunnel vents, all the spray stops, bow drops, and I gain speed. I am just wondering if the tunnel should vent on its own while getting on plane or if this is normal? Should I get on plane with the vent closed, then open the vent? Just wondering because this is my first tunnel and it does not vent as quickly as this video:
http://www.eastcapeskiffs.com/ecs-quick-clip-vented-tunnel/

Thanks

 

[Brett]

From my experimenting with pocket tunnels,
the tunnel should always be vented to minimize turbulence and drag.