Hi Guy's. Still working on my new sled it has a 3" tunnel that is not working. 1st try motor up high with intake tucked up under the tunnel extension (the tunnel extends about 3" past the transom) at this height it blows out, cavitates, ect!
ok so I had a plate welded in the tunnel dropping it to about 2" that is working fair. You can't get the intake up as high as you would like in the tunnel because it hits on turns. What I am wondering is can I back off with the motor and have
it just above the tunnel as if the lid of the tunnel is the bottom of the boat? I have had several factory hulls with no tunnel and used a 4" jack plate to get the height up and that works real good. seems like the water flows up off the bottom and into the pump. all of those boats I could trim the motor a good bit to raise the front of the boat to run faster
or not get wet in rough water. with a tunnel and the intake tucked under you can't trim it then lets the water flow over the intake and makes a mess. also on the thread of jet pictures I see a bunch of those plates above the intake on the high performance boats. what are they and what do they do? Thanks
ok so I had a plate welded in the tunnel dropping it to about 2" that is working fair. You can't get the intake up as high as you would like in the tunnel because it hits on turns. What I am wondering is can I back off with the motor and have
it just above the tunnel as if the lid of the tunnel is the bottom of the boat? I have had several factory hulls with no tunnel and used a 4" jack plate to get the height up and that works real good. seems like the water flows up off the bottom and into the pump. all of those boats I could trim the motor a good bit to raise the front of the boat to run faster
or not get wet in rough water. with a tunnel and the intake tucked under you can't trim it then lets the water flow over the intake and makes a mess. also on the thread of jet pictures I see a bunch of those plates above the intake on the high performance boats. what are they and what do they do? Thanks