Search found 2126 matches

by SWAMPHUNTER45
Tue Sep 18, 2018 8:34 am
Forum: Prop Talk
Topic: Reversible Airboat Prop (up to 140HP)
Replies: 1
Views: 203

Re: Reversible Airboat Prop (up to 140HP)

Cool stuff !
by SWAMPHUNTER45
Mon Sep 17, 2018 11:27 pm
Forum: Automotive Power Only
Topic: Adding Aluminum Intake to Caddy 500
Replies: 9
Views: 274

Re: Adding Aluminum Intake to Caddy 500

The plug under the housing is required to ensure circulation when not using a Cadillac specific thermostat. The small hole is drilled in it to bleed off air bubbles. As far as your other trick that is not one we use.

Let us know how the new intake works for you
by SWAMPHUNTER45
Sun Sep 16, 2018 8:26 am
Forum: Mini-Airboats
Topic: Engine tune
Replies: 5
Views: 210

Re: Engine tune

If you don't have an angle finder or struggle to grasp that process there is another way to make certain your blades are all pitched equal. You can take a measurement from the trailing (back) edge of the blade to a fixed point on the boats transom. Measure 2-4 inches from the tip and place a ink Mar...
by SWAMPHUNTER45
Fri Sep 14, 2018 8:16 pm
Forum: Automotive Power Only
Topic: 408 Ford stroker build underway! Direct drive
Replies: 40
Views: 1582

Re: 408 Ford stroker build underway! Direct drive

Awesome to hear the progress
by SWAMPHUNTER45
Fri Sep 14, 2018 8:11 pm
Forum: Automotive Power Only
Topic: Adding Aluminum Intake to Caddy 500
Replies: 9
Views: 274

Re: Adding Aluminum Intake to Caddy 500

Maybe post some pics of your custom cooling mods.

Be interesting to see the handy work.
by SWAMPHUNTER45
Fri Sep 14, 2018 6:02 am
Forum: Airboat Talk
Topic: Tecumseh mini airboat motor
Replies: 1
Views: 139

Re: Tecumseh mini airboat motor

I have seen them sell as cheap as $100 at yard sales to upwards of $400 on ebay for an antique version.


It appears yours is a late model looking at the components. How it runs and the mechanical condition will be relevant to the price.


Be cool to see a kid get it
by SWAMPHUNTER45
Thu Sep 13, 2018 2:44 pm
Forum: Automotive Power Only
Topic: Adding Aluminum Intake to Caddy 500
Replies: 9
Views: 274

Re: Adding Aluminum Intake to Caddy 500

It will work but a 500 inch engine at 4200 can use an 800 the cars came with carbs bigger than what your running. Hey if it works use it. You have not said what if any mods were done to it. If your gonna run 2900 sustained I would upgrade components. I think most Caddy guys would agree to valve trai...
by SWAMPHUNTER45
Thu Sep 13, 2018 1:17 pm
Forum: Automotive Power Only
Topic: Adding Aluminum Intake to Caddy 500
Replies: 9
Views: 274

Re: Adding Aluminum Intake to Caddy 500

Ok Well you should be good then. We use the Edelbrock Thunder AVS 800cfm on reduction engines. I assume you know the limitations of the stock platform and have upgraded the valve train accordingly. Cadillac Performance Engineering is a great resource for parts and tech support should you need it. 35...
by SWAMPHUNTER45
Thu Sep 13, 2018 11:26 am
Forum: Automotive Power Only
Topic: Adding Aluminum Intake to Caddy 500
Replies: 9
Views: 274

Re: Adding Aluminum Intake to Caddy 500

Are you running a reduction unit or will it be direct drive? If your engine is running a proper timing curve now then changing the intake will have no bearing on it. Nothing should be required, just verify all is working properly. Changing the intake from a factory low to high rise can make a carb a...
by SWAMPHUNTER45
Wed Sep 12, 2018 6:19 am
Forum: Prop Talk
Topic: SENSENICH PROP CAME APART
Replies: 3
Views: 512

Re: SENSENICH PROP CAME APART

It can be caused by several things one being corrosion by trapped moisture. I run the Gulf in the fall and the salt spray can find it's way back behind the leading edge. I had it happen on a NGQ WInglet it is not entirely uncommon. Sensenich should be contacted and allowed to inspect the blades and ...
by SWAMPHUNTER45
Sun Sep 09, 2018 7:52 pm
Forum: Automotive Power Only
Topic: Waterthunder serial number
Replies: 6
Views: 706

Re: Waterthunder serial number

Sounds familiar Dave!

I can't count how many times I have heard people misrepresent a Cadillac as a Branch engine when it was not.


Buyer beware!


If someone is offering up an engine as a WaterThunder engine MAKE THEM PROVE IT and verify the build by calling the shop and getting the details.
by SWAMPHUNTER45
Sat Sep 08, 2018 8:25 am
Forum: Automotive Power Only
Topic: THE NEW CADILLAC
Replies: 19
Views: 821

Re: THE NEW CADILLAC

The old junk yard Branch stroker loves to push low. Over 200 hours on it, nitrous, 4 S blades, broken oil pick up tube and just turn the key and go. At 150 hours an inspection was done and nearly no wear observed. Thought about putting a ProCharger on it but reading the concerns will probably pass. ...
by SWAMPHUNTER45
Fri Sep 07, 2018 7:07 am
Forum: Automotive Power Only
Topic: THE NEW CADILLAC
Replies: 19
Views: 821

Re: THE NEW CADILLAC

It appears that they have built that new engine to bring the torque!

Chevrolet to follow soon with DOHC in a revised LT platform.
by SWAMPHUNTER45
Wed Sep 05, 2018 7:40 pm
Forum: Automotive Power Only
Topic: THE NEW CADILLAC
Replies: 19
Views: 821

Re: THE NEW CADILLAC

by SWAMPHUNTER45
Mon Sep 03, 2018 1:47 pm
Forum: Aircraft Power Only
Topic: 220 GPU Weak Oil cooler line pressure
Replies: 11
Views: 456

Re: 220 GPU Weak Oil cooler line pressure

What is the displacement in a 220 and how do they align. Are they a cousin to a 540 ?
by SWAMPHUNTER45
Mon Sep 03, 2018 8:38 am
Forum: Aircraft Power Only
Topic: 220 GPU Weak Oil cooler line pressure
Replies: 11
Views: 456

Re: 220 GPU Weak Oil cooler line pressure

Your a great help Fenner !

Such an asset to SA with helping others.
by SWAMPHUNTER45
Thu Aug 30, 2018 8:21 pm
Forum: Airboat Talk
Topic: DuckNutt 500 Caddy Build Complete
Replies: 8
Views: 367

Re: DuckNutt 500 Caddy Build Complete

Looking good Nutt, nice job with it!
by SWAMPHUNTER45
Thu Aug 30, 2018 8:17 am
Forum: Automotive Power Only
Topic: THE NEW CADILLAC
Replies: 19
Views: 821

THE NEW CADILLAC

GM FINALLY LET CADILLAC BUILD AN ENGINE AGAIN Throughout the history of General Motors the different brands had always competed to build the best or most powerful products. There was competition and some of the best engineers were at Cadillac. Since the 1980s for cost savings the Chevrolet platform ...
by SWAMPHUNTER45
Thu Aug 30, 2018 7:37 am
Forum: Florida Airboaters
Topic: New to Airboats in Tampa
Replies: 14
Views: 1795

Re: New to Airboats in Tampa

Airboats can be wonderful and safe family fun BUT they are a vessel that can be extremely dangerous as well! An airboat in the hands of a new operator is a potentially dangerous situation. Add in a load of passengers, shifting weight and distractions and it can become extremely dangerous. All you ne...
by SWAMPHUNTER45
Wed Aug 29, 2018 10:12 pm
Forum: Airboat Talk
Topic: New to airboats have general questions
Replies: 2
Views: 164

Re: New to airboats have general questions

Great way to start is to get with a local commercial operator and take a small boat tour. You will have a expert to answer your questions and help you get a good introduction to the vessel.
by SWAMPHUNTER45
Wed Aug 29, 2018 3:23 pm
Forum: Automotive Power Only
Topic: Caddy 500 intake - Stock vs Edelbrock?
Replies: 7
Views: 280

Re: Caddy 500 intake - Stock vs Edelbrock?

It can't hurt your performance honestly, but I doubt you will see much of a power gain. The intake really is a small piece of a more complex puzzle and the fact you are choking the engine down causes me to doubt you would see a 25 rpm gain. If this was an engine with modifications such as ported hea...
by SWAMPHUNTER45
Wed Aug 29, 2018 8:30 am
Forum: Automotive Power Only
Topic: Jegs blue print enginr
Replies: 8
Views: 615

Re: Jegs blue print enginr

What exactly are you looking for power wise and how much can you afford to spend? What prop do you plan to spin and do you have a gear drive ratio? As has been discussed on here in great detail an airboat engine needs to be purpose built to have longevity. Like Proto said some people have gotten by ...
by SWAMPHUNTER45
Mon Aug 27, 2018 9:05 pm
Forum: Automotive Power Only
Topic: Jegs blue print enginr
Replies: 8
Views: 615

Re: Jegs blue print enginr

If you dig in the archives you will find info but to make it easy the answer is YES

Yes people have

Yes they have had problems

Yes they have had some success

If you go with a 383 spend the extra money to upgrade to the roller version and make sure the engine does not run lean.
by SWAMPHUNTER45
Fri Aug 24, 2018 4:51 pm
Forum: Airboat Talk
Topic: New Hull Composite
Replies: 8
Views: 888

Re: New Hull Composite

Sounds very interesting. I know some builders have been using a Kevlar fabric but hear tale it is prone to cracking. I believe it was Hydra-Sport that was the first big corporate builder to use Kevlar in some capacity in the early 1980s. It is time for a new material to enter the market sounds excit...

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