The 80 came from a question asking would I need to get another oil gauge since the print out showed min at 90. Your email back was (paraphrase) the oil was cold and will come down a bit. The engine has never gone higher then 50 so my thought is the gauge was pegged somehow. Not complaining about 50, it is more then enough

If anything the hull is lifting to much. Had it out yesterday and getting ready to go back out today. On plain if I bring the tabs down at all it starts to porpoise. When extra friends are on board not so much. I use to be able to have the spray about amidships, now its more toward bow, boat probably is 200lb lighter in the stern, and another 100 under fuel tank at most.

Again, boat has always had bottom paint, so I don't see how pant can effect current issues.

There must be a compatibility issue with the sender and the gauge. I don't recall if we changed the sender or not. i can look though. That pressure measurement taken on the dyno was with a mechanical gauge in the oil filter. It will be slightly lower in the engine, but by only 5-10 psi. We run an Oberg washable filter on the dyno where we measure oil temp and pressure.
Eddie

4 blades are stern lifting props, hence the bow down running attitude compared to 3 blades that are bow lifting. I believe you never were able to talk to Brett at BBlades about your setup? My guess is he would have suggested a set of 3 x 3's that he would do something similar that he does with straight bottom Baja's. Just guessing here. Being it is a heavy single engine cruiser that might not work like I think it would . You may just not have enough of a lever at the back of that "brick" as you call it with a single.

I use to be able to have the spray about amidships, now its more toward bow, boat probably is 200lb lighter in the stern, and another 100 under fuel tank at most.

There is the riddle and where you HP went...... with lower hp your running less wetted surface........ with the increase now your plowing.....is that right. Perhaps that hook is more of a problem than seems apparent having to tab down to control porpsing on that boat is...well WTF???

Agree I never talked to Brett, another guy there which said I should try the 4x4, never mentioned 3x3's. I mentioned the 4x3 and he restated the 4x4

You might have something there, really need to pull the boat and put the runabout in, water is getting low, but the weather and water is so nice. When pulled I'll break out the straight edge and camera

I would strap that B1 drive on it. Bury the tabs to get on plane then pull up tabs and trim up. I tried a 4 blade on a similar but smaller boat with an alpha drive and it DID NOT LIKE the 4 blade. Best prop for it was a Big Ear 3 blade. I think the combo of the 4 blade props and B3 are whats robbing you. You should have gained 5 mph min with that power and you are loosing 3 mph or so with the 4 blades and maybe a couple with the B3. I think there is 7mph hiding somewhere. I can tell you whatever power Eddie says its making then thats whats its making.

Chris

Don't really think I can get even on plain with a 1:50 drive, well maybe with a 21 pitch prop. Remember I bought a 1:65 B3 drive and the 24 pitch props would not even get me out of the water. The 22 pitch did get me up but only managed around 4K rpms (just from memory, its posted in this thread). So a 1:50 drive and a 21, I just don't think it would even come up. Willing to try, but just don't see how a B1 can do it.

After seeing and riding in that boat, I don't think a B1 is the answer. I think you would have a hard time keeping it living. The only shot you would have would be to run a big eared B2 prop. I still don't it would work. But that's just my opinion.
Eddie

it s winter again and you spent a ton on it with no improvements.

Time for a ASD-8