We run a 70" 2 blade Q on my Son's DD 385", but on a 12' hull. The Q is hard to beat for a DD application Thanks for the help. Also how good is the push, like will it run dry and what kind of speeds is he getting? Push is good. His boat is a 12' Big "O" with poly, and the rigging is pretty light. I...

We run a 70" 2 blade Q on my Son's DD 385", but on a 12' hull. The Q is hard to beat for a DD application

As a general rule, like mentioned previously the NGQ props like RPMs. The way I look at it, why not try it and see? It's easy enough to adjust and if you don't like the results, move it back down. I run a 72" NGQ, it's at the 2-1/2 mark, and it runs 2850 on the trailer, that's where it seems to run ...

Only thing you'll gain is more hot chicks, lol

The one thing I can tell you is that the amount of pressure the prop puts on the thrust is extreme. The more wear you get to the bearing the less a piss thin oil can do to cushion. Not sure if you have heard me talk of the "Branch Brew" but his DD engines last for years. 15w-40 Shell Rotella T 4 Qt...

I run one on a 90* neck off of the carb, no issue at all. Might be questionable if it's legal or not, had someone tell me one time that an aircraft engine is required to have a "spark arrester", not an air filter. I have not had any issues performance wise, nor has FWC ever questioned my air filter.

FLCRACKER9 what are you running for oil in the DD engine ? Swamp, if my memory serves me correctly, when I assembled the engine (I'm no professional by any stretch), our main bearing clearances were a little on the tight side (as measured with a bore gauge and micrometer, double checked using plast...

Been there, done that. I bought a DD boat for my Son a few years ago. It is a 12' Big O hull with poly, and came with a Vortec 350ci and a 70" Q series prop. It ran well, even ran dry pretty good with 2 men on board. It finally took a dump on us one day (slung a rod out the side of the block), so we...

A 72" 3 blade H is a lot of prop on a DD 350. Will it push the boat, yes, is it the best prop for that combo, no. Like stated previously, a 68" - 70" 2 blade is the standard for that combo. We (my Son's boat) run a 70" Q on a 385ci DD on a 12' hull, great snap, runs the hill pretty damn good for a D...

First I want to thank water management for the boat ramps that we have, they seem to be in most of the places people want to ride. But would it be such a big deal to provide a way to tie up a boat? Maybe put your signs a little closer to the water . Maybe a pipe or 4X4. Wouldn't take much and you w...

I believe the Judge heard both sides, and made the determination to not make a ruling until He/She could further reveiew the case. In other words, the Judge delayed the verdict until further review.

Saw 7 different bucks in 1 day when we were last up there (mid July), all in velvet, all in the water chest deep. That's by far the most I've ever seen up there, usually it's 1 here and there. Got some nice pics on my phone, wish I knew how to post them here from my phone.

Mine's set at 32*, no issues

I think your assuption is correct! I'm running Twisted Wedge heads on my SBF (street/strip Mustang), and before I ever installed the heads, I replaced all the studs (with ARP), springs & retainers (Comp Cams) with better quality units. Even though you are spinning 3000rpm where I'm spinning 7000, I ...

Most folks I know running stock/near stock 350s, run a 2:1 box, with a 2 blade R series prop. That being said, what prop do you currently have? My opinion is you would be better off with the 2:09 Stinger, but again, depends on what prop you are turning???

Branch Engines (352)797-9910 aka: Cadillac Performance Engineering located in Brooksville, Florida Looking at the pic you posted, it leads me to believe that your engine was damaged by detonation. Tim, I agree with Swamphunter45 said, broken ring land is usually caused by detonation, ask me how I k...

Branch Engines (352)797-9910 aka: Cadillac Performance Engineering located in Brooksville, Florida Looking at the pic you posted, it leads me to believe that your engine was damaged by detonation. Tim, I agree with Swamphunter45 said, broken ring land is usually caused by detonation, ask me how I k...

Probably not much help, but it should run fine on that carb. We run a Holley 670 vacuum secondary carb on my Son's DD. His timing is set at 34*, 70" Q series prop, turns 2800 - 2900, and it runs great.

They usually have a data plate mounted to the case in front of the right side mag (left side if you are standing behind the boat looking at the prop), if the data plate is still there, it will tell you what model and what HP at what RPM?

There's a great video floating around on Facebook of his casket loaded on an airboat, and the airboat taking him on his final ride (running dry). The airboat takes his casket from across the street, to the church grounds where the service was held. I don't know how to copy from Facebook and past her...

It will be interesting to see how the 5 Water Thunder DD LS boats hold up. Anyone know if they did anything differen't for the thrust bearing load? Are they running conventional oil?

should i keep quick slip or polly the boat Again, that all depends on what you use it for. If you don't plan on running much dry ground, slick bottom is fine. The more dry you run, the more often you will have to reapply the slick bottom, and slick bottom does nothing to protect you hull. If you pl...

Birddog247 on this site runs an old 350 that he pulled from a van, 2:1 gearbox, 2 blade R, on an aluminum hull, and I've yet to see him sruggle on the hill with 2-3 people. The belt box in question weighs more than his gear box, but the combo operates the same. Set-up would dictate how it performs, ...

500lbft/ 400hp turns way way less prop and makes way less thrust than 400lbft/500hp according to my AC pocket protected fuzzy math excel calculator the engines have equal power and both exceed waterthunder thrust expectations :salute: I challenge any CM calculators to prove me wrong!! :stirpot: :fi...

Need more info, how is it mounted? Electric fuel pumps are designed to push fuel, not draw it from the tank. The closer to the tank you can mount it the better. Does the tank have a pickup tube that draws from the top, or is the outlet mounted low (gravity fed). I run a Carter on one boat (car motor...