29' fountain what prop to run?
 

I bought a 05 29' fountain with 525efi over the winter and took it out over the weekend for the first time. I took forever to plane out. There was 4 adults 1/2 tank of fuel and really nothing else as it was a test run. It has bravo 1 28p on it that was brand new(never seen water). I tried tabs up down and all over nothing helped. Tried turning back and forth nothing helped. Seemed to be the best just leaving straight and waiting. Once on plane no issues. Was on a smaller lake so I could not fully open up and get full RPMS and get trim set to exactly where needed but had good performance throughout. I got run sheet from fountain and it was run with same 28p merc. Not sure what everybody with a 29 is running or any suggestions.

My 05 29 ran best with a Bravo 1 26p. I also had a 28 but is was a little to much for the factory setup. I have since upgraded the motor. so I can't run either. I now run a 30.

Omaha - You need to take it out on the river and open it up and see what your top RPM is. Call Bret at BBLADES and try there prop loaner program. He will get you dialed in probably the first test prop.

I assume by your post that you are running a single 525. But either way, Outdrives all the way in and tabs all the way down. Throttle up to around 3800-4200 RPMs When the boat starts to plane pull your tabs to 3 and outdrives to 3 or 4 depending on water conditions and load. Adjust throttles to desired speed. Check out Reggie running a fountain on youtube. ( Fountain Powerboats - Secret to Speed )

I've got the same set up '04 29 with the 525EFI, mine also runs great on a Bravo 1 26P. Planes right out full tank and 5 adults. If you had your 28P labbed it may act more like 26.5-27P, but then you'd really be pissed when you do put a nick in it, lol. I know when mine was tested straight from the factory it was tested with barely enough gas in it to make it back to the dock and 1 guy in it, if they did that they may have got a 28 to work.

I have ran it up river and down called bblades and ordered 26. After all the research I did I think it will work best. I have it on the boat now but with the weather have not been able to run. Hopefully in the next couple weeks I can get it out. Will let all know how it goes.

What was your top end rpm? I wouldn't run any less than merc suggest for 525 efi. Having to much prop sucks.

At wot and top speed I was at 71 mph and 5100. 3 people half fuel and nothing else on the boat. Hey river rat what speed are you getting with decent fuel and people.

I think I was getting 72-73ish with a decent load, I know I hit 77 with just 2 and 1/4 tank of fuel.

What Octane gas are you using, friend has same boat, 2006, he runs 26P Bravo1 one prop, 28 P takes forever to plane,,, he switched to 93 Octane it really helped,,,, don't use 87 Octane like he was using.