sst60 gearcase

[tunneljunior]

I have a nitro case on a 75 Stinger, and want to put a cone on to run on an SST60 boat.

Can anyone tell me, does the SST60 case have low water pickup in the cone or the standard (fishing motor) inlet holes in the side up fron the bullet?

Thanks

[Popa Sam]

I have a nitro case on a 75 Stinger, and want to put a cone on to run on an SST60 boat.

Can anyone tell me, does the SST60 case have low water pickup in the cone or the standard (fishing motor) inlet holes in the side up fron the bullet?

Thanks

60 case has two on either side. The gearcase you are trying to build is not legal in SST-60.

[tunneljunior]

Thanks for the info. The holes you mentioned, are these above the prop shaft by a few inches?

I am trying to build a case that I can run on the lake, not a legal case.

My concern is drawing enough water, without a low pickup in the cone, to provide adequate cooling.

If running with the shaft at the water line, inline with bottom edges of the sponsons, the water inlet holes are above the water line. Do these holes pull in enough cooling water?

Thanks

[pat]

The two intake holes of an SST-60 gear case are in the same area as the nitro gearcase. If you are running a tunnel hull, a vertical transom height of about 17.5" (top of tunnel roof to top of transom) is average. If you have a 7" deep tunnel your total height is 24.5" from the bottom of the sponson to the top of the transom. You will also need to run a "blow-out" hub with your prop to reduce prop blow-out even with a nose cone. I have several hubs for 22" to 23" cleaver props.

[Popa Sam]

Thanks for the info. The holes you mentioned, are these above the prop shaft by a few inches?

I am trying to build a case that I can run on the lake, not a legal case.

My concern is drawing enough water, without a low pickup in the cone, to provide adequate cooling.

If running with the shaft at the water line, inline with bottom edges of the sponsons, the water inlet holes are above the water line. Do these holes pull in enough cooling water?

Thanks

If you close off the two top holes on either side of the nitro case, the holes will then be the same as the 60 case. Don't think you will have a problem with water. My experience is that the prop starts to blow out before you run out of water. Be very careful with the nitro case on a tunnel. The skeg is much smaller than a 60 case. If raised too high you will have severe handling issues.