Search found 2663 matches

by SWAMPHUNTER45
Sat Mar 07, 2020 1:11 pm
Forum: Automotive Power Only
Topic: 7.3 diesel engine on airboat?
Replies: 34
Views: 5771

Re: 7.3 diesel engine on airboat?

There were a few built at ridiculous cost back before the economy crashed. Then after things tanked they would pop up on eBay or craigslist for sale. You know when that happens it ain't good. Last one I saw for sale was somewhere up North like New Jersey being sold as is at auction. Maybe it was rep...
by SWAMPHUNTER45
Tue Mar 03, 2020 6:25 pm
Forum: Airboat Talk
Topic: Converting from car engine to aircraft.
Replies: 18
Views: 2209

Re: Converting from car engine to aircraft.

If you had a 13ft boat and a 1.7 drive you would be very happy. Going to a 16ft and putting weight in it requires something upgraded if you plan to run any dry loaded. At a minimum to go on a drive you need to upgrade the timing set and get a shaft rocker system. Even doing that your at a bare minim...
by SWAMPHUNTER45
Tue Mar 03, 2020 9:23 am
Forum: Airboat Talk
Topic: Converting from car engine to aircraft.
Replies: 18
Views: 2209

Re: Converting from car engine to aircraft.

My experience was a 74 inch Q was the better Caddy length. Your L33 / 425 sounds strong for stock? Have you tried letting it idle for a "full minute" prior to shut down? What is the idle rpm? Factory spec was 500 rpm How do you have it timed? (Fatal error to push advance in a Caddy) Try adding in a ...
by SWAMPHUNTER45
Mon Mar 02, 2020 9:55 pm
Forum: Automotive Power Only
Topic: Cadillac 500 - HOLY GRAIL
Replies: 13
Views: 1772

Re: Cadillac 500 - HOLY GRAIL

Later this week it will be at the Branch shop for a quick inspection. Then we will fog the cylinders with oil and put this baby into a cradle stand for storage. We will see where this one goes but I think it should stay together for now. It ran really good and the carburetor is desirable in GM facto...
by SWAMPHUNTER45
Mon Mar 02, 2020 7:18 pm
Forum: Automotive Power Only
Topic: Cadillac 500 - HOLY GRAIL
Replies: 13
Views: 1772

Re: Cadillac 500 - HOLY GRAIL

It is in the bed of my truck now.

Couldn't let that one get away!!!!!
by SWAMPHUNTER45
Mon Mar 02, 2020 5:18 pm
Forum: Automotive Power Only
Topic: Cadillac 500 - HOLY GRAIL
Replies: 13
Views: 1772

Cadillac 500 - HOLY GRAIL

What would be the odds to find a running Cadillac with a 472 / 500 still tagged and legal where you can take it out for a drive to test the engine? What would the odds today in the year 2020 to find a 45 year old 1976 Cadillac in immaculate condition with 29,313 miles ? What would the odds be to fin...
by SWAMPHUNTER45
Thu Feb 27, 2020 7:40 pm
Forum: Automotive Power Only
Topic: Long Tail Engine for Mud Boats
Replies: 2
Views: 824

Long Tail Engine for Mud Boats

Here is a BAD AZZ long tail set up used in Thailand !!!

https://www.youtube.com/watch?v=HO-NdLWCgec
by SWAMPHUNTER45
Wed Feb 26, 2020 3:12 pm
Forum: Aircraft Power Only
Topic: 76" NGQ RPM
Replies: 12
Views: 1509

Re: 76" NGQ RPM

You don't spin a 76 NGQ with winglets like you do some other shorter slick blade prop. Set it at 2750 on the trailer if you want to try a different setting and that should have you at 2850 on the water apx. We found the prop liked pitch and taking pitch out only favored a weak engine or an engine wi...
by SWAMPHUNTER45
Wed Feb 26, 2020 7:43 am
Forum: Automotive Power Only
Topic: re-power to a bigger motor
Replies: 5
Views: 1258

Re: re-power to a bigger motor

If your swapping to a V8 sbc and going "gear drive" the best power for the dollar is probably going to be a 383 crate motor. While not a purpose built engine the price and availability make it attractive to many. A lot of folks have had better than fair results using the Blue Print roller version. E...
by SWAMPHUNTER45
Wed Feb 19, 2020 8:55 am
Forum: Aircraft Power Only
Topic: 76" NGQ RPM
Replies: 12
Views: 1509

Re: 76" NGQ RPM

It is hard to say if going up in rpm and down in your pitch will yield a gain in push. I would strive to put it at 2750 if it was me. I ran a 76 NGQ on a Branch 514 with Nitrous. We would choke it down around 2600 so when on the power adder we were under 2900 rpm. That prop liked pitch. If you set i...
by SWAMPHUNTER45
Tue Feb 18, 2020 5:37 am
Forum: Airboat Talk
Topic: 350 DD boat
Replies: 138
Views: 17162

Re: 350 DD boat

Looks good kid! I always run a spring (2 of them) on the carburetor. You don't want it pulling to hard fyi but stiff enough to ensure a sharp snap of the throttle.
by SWAMPHUNTER45
Tue Feb 18, 2020 5:34 am
Forum: Mini-Airboats
Topic: Gheenoe Airboat
Replies: 5
Views: 786

Re: Gheenoe Airboat

Jordan if your just starting out the advice I would give is build yourself a real boat not a mini. A 12ft traditional hull is mini enough when you get to looking at it. There are a few low cost power options from a direct drive car motor, salvage LS carb conversion to using the new GM computer contr...
by SWAMPHUNTER45
Mon Feb 17, 2020 8:14 pm
Forum: Mini-Airboats
Topic: Gheenoe Airboat
Replies: 5
Views: 786

Re: Gheenoe Airboat

There have been countless attempts in the past 60 years to turn small boats into airboats. It never works very well. If you look up the old "Air-Boy" system you will see it was a commercially produced unit. Maybe look into a mud motor it would be more effective if the weight doesn't limit you. The l...
by SWAMPHUNTER45
Sun Feb 16, 2020 10:32 am
Forum: Hunting & Fishing
Topic: Rat Hunting
Replies: 5
Views: 998

Re: Rat Hunting

Funny stuff Cowboy lmao
by SWAMPHUNTER45
Sat Feb 15, 2020 6:15 am
Forum: Other Important News
Topic: Corona Virus - Wuhan China
Replies: 5
Views: 933

Corona Virus - Wuhan China

The outbreak of a virus linked to Wuhan, China should concern us all. If your not aware of some of the facts let me share a few and you decide if this doesn't cause some alarm. #1) The medical doctor who first broadcast alarm of his observations while working in a Wuhan Hospital was detained and thr...
by SWAMPHUNTER45
Fri Feb 14, 2020 6:18 pm
Forum: Airboat Talk
Topic: Airboat Maps
Replies: 8
Views: 1044

Re: Airboat Maps

The links are dead FYI
by SWAMPHUNTER45
Fri Feb 14, 2020 4:07 pm
Forum: Airboat Talk
Topic: Airboat Maps
Replies: 8
Views: 1044

Re: Airboat Maps

10-4 thanks
by SWAMPHUNTER45
Fri Feb 14, 2020 4:05 pm
Forum: Hunting & Fishing
Topic: Rat Hunting
Replies: 5
Views: 998

Rat Hunting

This young man has a business hunting rat infestations at farms with his dogs and trained Minks!

Something to see the dogs and Minks work together and how he recalls the Minks into small crates.
by SWAMPHUNTER45
Fri Feb 14, 2020 2:25 pm
Forum: Airboat Talk
Topic: Airboat Maps
Replies: 8
Views: 1044

Re: Airboat Maps

Over this way there were some really cool hand drawn maps made many years ago. Very professional work with all the names of the local stops and haunts marked on them as well as the trails and slides. I never found who made them but always wanted one to frame for the cabin.
by SWAMPHUNTER45
Wed Feb 12, 2020 6:05 pm
Forum: Airboat Talk
Topic: Dynamarine Performance Airboat
Replies: 13
Views: 2608

Re: Dynamarine Performance Airboat

I would love to have a Raptor hull from Dyna !

Only thing is if I had one of those I may have to build an LS...lol
by SWAMPHUNTER45
Tue Feb 11, 2020 7:10 am
Forum: Airboat Talk
Topic: Dynamarine Performance Airboat
Replies: 13
Views: 2608

Re: Dynamarine Performance Airboat

I heard they were building several special purpose boats for the federal government.
by SWAMPHUNTER45
Thu Feb 06, 2020 6:38 pm
Forum: Automotive Power Only
Topic: 350 direct drive worn crank bearings
Replies: 14
Views: 1541

Re: 350 direct drive worn crank bearings

Good choice on the bearings

We use the big block Chevy bearings in our stroked engines, I have used XPs before.
by SWAMPHUNTER45
Tue Feb 04, 2020 10:44 pm
Forum: Airboat Talk
Topic: 350 DD boat
Replies: 138
Views: 17162

Re: 350 DD boat

A hull jack can change the ride considerably. You should try to find someone close by that has tuned a hull before and see if they could help you to get yours right. In the interest of a starting place set your boat on perfectly flat and level ground. Then adjust your jacks so that they are at that ...
by SWAMPHUNTER45
Tue Feb 04, 2020 7:36 pm
Forum: Automotive Power Only
Topic: 350 direct drive worn crank bearings
Replies: 14
Views: 1541

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 ...

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