Search found 510 matches

by flcracker9
Thu Jul 02, 2020 2:40 pm
Forum: Airboat Talk
Topic: Top Speed
Replies: 15
Views: 3124

Re: Top Speed

70 mph on the way to the ramp, 20 mph 95% of the time on the water, that's the sweet spot for me. Any faster than that I miss too much scenery.
by flcracker9
Wed May 06, 2020 2:16 pm
Forum: Automotive Power Only
Topic: 351 Modified stroked to 444
Replies: 33
Views: 3543

Re: 351 Modified stroked to 444

Crane scaled the engine at 520 lbs. Thought this would make a contender for a direct drive power plant. Bolt on a set of aluminum heads and lose another 40 lbs. Whatcha all think? Here's the link to the dyno pull. https://www.facebook.com/1384552318518946/posts/2281029972204505/ Wow, that's surpris...
by flcracker9
Wed May 06, 2020 2:12 pm
Forum: Automotive Power Only
Topic: 351 Modified stroked to 444
Replies: 33
Views: 3543

Re: 351 Modified stroked to 444

My parents had those motors, he had th 400 m in the 78 bronco and a 351 in 77 f150 and put a rebuid 400 back in the truck. I always thought they were a pig of a motor, but you could pull a boat or trailer and it didn,t really know it was there. I always wondered how it would swing a prop, but motor...
by flcracker9
Wed Apr 22, 2020 6:56 am
Forum: Airboat Tech
Topic: Paint pain paint???!!
Replies: 36
Views: 3933

Re: Paint pain paint???!!

I'm with Sidin Gator, epoxy primer is some bad azz stuff. I use it all the time prior to painting a vehicle. it sticks to anything, and unlike a 2k primer that is porous, epoxy primer isn't. You can shoot epoxy primer and leave it outside in the weather, and when you're ready to paint, just scuff an...
by flcracker9
Thu Mar 26, 2020 11:57 am
Forum: Prop Talk
Topic: Need Prop Advise for SBC 383
Replies: 21
Views: 2900

Re: Need Prop Advise for SBC 383

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...
by flcracker9
Mon Mar 23, 2020 2:09 pm
Forum: Prop Talk
Topic: Need Prop Advise for SBC 383
Replies: 21
Views: 2900

Re: Need Prop Advise for SBC 383

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
by flcracker9
Wed Feb 26, 2020 2:42 pm
Forum: Aircraft Power Only
Topic: 76" NGQ RPM
Replies: 12
Views: 2280

Re: 76" NGQ RPM

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 ...
by flcracker9
Fri Feb 21, 2020 3:09 pm
Forum: Airboat Talk
Topic: Converting from car engine to aircraft.
Replies: 18
Views: 3164

Re: Converting from car engine to aircraft.

Only thing you'll gain is more hot chicks, lol
by flcracker9
Thu Feb 06, 2020 2:22 pm
Forum: Automotive Power Only
Topic: 350 direct drive worn crank bearings
Replies: 14
Views: 2665

Re: 350 direct drive worn crank bearings

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...
by flcracker9
Thu Feb 06, 2020 2:09 pm
Forum: Buggy Talk
Topic: K&N filter - anyone running them?
Replies: 2
Views: 1677

Re: K&N filter - anyone running them?

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.
by flcracker9
Tue Feb 04, 2020 10:59 am
Forum: Automotive Power Only
Topic: 350 direct drive worn crank bearings
Replies: 14
Views: 2665

Re: 350 direct drive worn crank bearings

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...
by flcracker9
Mon Feb 03, 2020 10:30 am
Forum: Automotive Power Only
Topic: 350 direct drive worn crank bearings
Replies: 14
Views: 2665

Re: 350 direct drive worn crank bearings

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...
by flcracker9
Mon Jan 13, 2020 8:54 am
Forum: Prop Talk
Topic: 350dd 2 or 3 blade
Replies: 11
Views: 2052

Re: 350dd 2 or 3 blade

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...
by flcracker9
Mon Jan 06, 2020 2:08 pm
Forum: Airboat Talk
Topic: Boat Ramps
Replies: 9
Views: 1960

Re: Boat Ramps

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...
by flcracker9
Tue Oct 29, 2019 2:48 pm
Forum: Airboat Talk
Topic: Alachua county Airboat ordinance
Replies: 80
Views: 12754

Re: Alachua county Airboat ordinance

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.
by flcracker9
Mon Oct 21, 2019 3:24 pm
Forum: Airboat Talk
Topic: Wheres all the wildlife?
Replies: 11
Views: 3980

Re: Wheres all the wildlife?

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.
by flcracker9
Wed Oct 09, 2019 1:50 pm
Forum: Automotive Power Only
Topic: timing for dd 350
Replies: 6
Views: 1962

Re: timing for dd 350

Mine's set at 32*, no issues
by flcracker9
Mon Sep 30, 2019 2:06 pm
Forum: Automotive Power Only
Topic: Edelbrock E-Street cylinder heads
Replies: 10
Views: 2438

Re: Edelbrock E-Street cylinder heads

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 ...
by flcracker9
Tue Sep 17, 2019 8:43 am
Forum: Automotive Power Only
Topic: 350 - Best box
Replies: 2
Views: 1685

Re: 350 - Best box

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???
by flcracker9
Fri Sep 06, 2019 2:36 pm
Forum: Automotive Power Only
Topic: gotta rebuild
Replies: 42
Views: 5987

Re: gotta rebuild

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...
by flcracker9
Fri Sep 06, 2019 2:32 pm
Forum: Automotive Power Only
Topic: gotta rebuild
Replies: 42
Views: 5987

Re: gotta rebuild

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...
by flcracker9
Fri Aug 16, 2019 11:29 am
Forum: Automotive Power Only
Topic: 351w carb tuning
Replies: 21
Views: 5573

Re: 351w carb tuning

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.
by flcracker9
Fri Aug 16, 2019 11:21 am
Forum: Aircraft Power Only
Topic: Need help figurung out what egine I have
Replies: 24
Views: 5233

Re: Need help figurung out what egine I have

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?
by flcracker9
Mon Jul 22, 2019 9:10 am
Forum: Airboat Talk
Topic: Lost a legend and airboating Knowledge
Replies: 13
Views: 3573

Re: Lost a legend and airboating Knowledge

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...
by flcracker9
Mon Jul 22, 2019 7:44 am
Forum: Airboat Talk
Topic: Thrust bearings? Aircraft vs. Automotive
Replies: 17
Views: 3328

Re: Thrust bearings? Aircraft vs. Automotive

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?

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