Friscoboater
Captain
- Joined
- Jul 3, 2009
- Messages
- 3,095
I just finished a restoration of my 81 glastron. My sig has all the pictures if you want to see it. Here are the particulars.
New 350 with a 252H Comp cams marine cam, aluminum Edelbrock performer intake, and about 9.75:1 compression. Loads of torque with this thing.
I am noticing alot of what I call prop slip under heavy acceleration. From a dead stop the engine revs to about 4000 rpm and then settles down once on plane like a jet boat does. Also when I am cruising and hit it, she raps up and then catches. It kind of reminds me of the old cartoons when someone is going to run, they just stayed in place for a second and then took off. At the upper end I am touching 5000 rpm at WOT. My drive is a standard alpha with a prop that looks stock (was on the boat when I bought it) and the number starts with an A and ends with 19. it is not black and looks like it has been worked over and had lips added to it.
So here is the first question. I have a clever prop with alot more pitch, but will not clear the little trim tab. I want to try it but I need to remove the little tab. Can I take it off? Ok, the second question is about the pitch. Should I add more pitch to get more bite?
Everything might be fine, and this thing really moves, but I want to make sure.
New 350 with a 252H Comp cams marine cam, aluminum Edelbrock performer intake, and about 9.75:1 compression. Loads of torque with this thing.
I am noticing alot of what I call prop slip under heavy acceleration. From a dead stop the engine revs to about 4000 rpm and then settles down once on plane like a jet boat does. Also when I am cruising and hit it, she raps up and then catches. It kind of reminds me of the old cartoons when someone is going to run, they just stayed in place for a second and then took off. At the upper end I am touching 5000 rpm at WOT. My drive is a standard alpha with a prop that looks stock (was on the boat when I bought it) and the number starts with an A and ends with 19. it is not black and looks like it has been worked over and had lips added to it.
So here is the first question. I have a clever prop with alot more pitch, but will not clear the little trim tab. I want to try it but I need to remove the little tab. Can I take it off? Ok, the second question is about the pitch. Should I add more pitch to get more bite?
Everything might be fine, and this thing really moves, but I want to make sure.
..