why not just use the factory chain and sprocket setup for your final reduction? something like a 14 or 15 tooth on the transmission and a 28 or 30 on prop hub side? pretty much that engine is designed to spin a chain those speeds. would seem straight forward with a little fab work. long prop nets mo...

75-140 Lucas is what Brian told me to run recently.

I bought a gallon of it so, cant say how much it took. Just fill until it weeps, done.

About 300 to 400 hours on mine so far, solid psru.

Don't spring the trap early!

Don't even need forced induction to have a 550hp LS. pretty much a normal power level for them these days.

Well, it kind of depends on what you use the boat for and what kind of power you are looking to make. The forced induction setup has very high power potential but comes with system complexity that some people dislike. I have always preferred forced induction over displacement. But, its hard to look ...

Autozone loans tools for free. They have around 150 different tools available.

give them a call, may have what you need.

It is FREE.

good luck.

well, 50/50 mix of green Ethylene glycol and distilled water is a pretty standard coolant to run.

if you need more cooling capacity, cut the green back to 10% and run a bottle of your favorite surfactant like water wetter or similar.

hope that helps some!

it can be done, but friends dont let friends build "airboats" out of narrow beam John boats. the mudmotor will be cheaper to run and go same places that a low power air driven john boat will and do it more safely. Think hard about it before sinking money into this path. Budget, then what d...

Man...your forum name is spot on imo.

However, jokes aside, its really not the way to go if you want an airboat.

Budget really dictates what options you have. second to that is what do you want to do with your airboat.

But, for sure, dont waste your time with that jon boat hull.

Sure, I can understand the desire to keep cost down. However, the cost of a used gear box and a stock SBC will be lower than a built SBC and perform much better at the same time. You already need a new prop so no additional cost there. Rigging getting redone, nothing additional there either. From my...

Question I have is, why stay DD?

Pump fuel with ethanol loses about 3 octane points after storage in a vented system beyond a few weeks in a tropical environment.

Swamphunter, do you have a source we can read for this claim?

Thanks!

Yep, can't fish without GPS trolling motor. I have a sliding mount that helps using them a ton on Airboats as well as regular fishing boats too. Allows you to move the entire motor inside the boundary of the hull so you don't wack it on trees, docks, etc. Deploys just as fast as normal static mount ...

I sent you a PM Dylan, just in case you missed the little icon.

http://insider.foxnews.com/2017/08/27/h ... -youve-got

Rather different picture that article paints. A dang shame really.

They could use teams like yours is a gross understatment.

Hope someone wakes up before more people get hurt.

Indeed mojoe, didn't meant to imply what you wrote wasn't valid.

Reality is you need to maintain between 4 and 5 lbs of total boat weight per hp on an airboat to avoid anxiety issues on when and where you can go. Then, you need to make sure you use the right prop and overall setup to properly utilize that power to get proper thrust numbers that also are at the ri...

Well, this turned out rather good for you guys in the end. Glad to see that.

Good luck with the new motor.

Can you rephrase this part of your last post? I can't tell for sure what you meant. There is no reason to run your engine any faster than the peak RPM versus torque because torque is what will push your boat. I suspect you meant to convey that there is no reason to turn the motor past its peak Hp as...

Well.... You know where his garage is....

Start there.

If you are using a narrow band O2 sensor to obtain your AFR readings, the numbers you are getting are worthless. Narrow band O2 only give accurate readings in a "narrow" range around stoich of 14.7. More modern is to use "lambda" value of 1.0 to represent stoich on a wider range ...

Well, for sure it's possible to remote tune. Just that your tuner has elected to not support that I guess.

I am sure you will get it sorted.

Best of luck!

A quick Goog search and I turned up umpteen pages of tuning options for mefi 6.

This should work for you?

http://www.mefipro.com/index-mpro2.html

Lower weight always better, regardless of engine choices really. But, you have to think of the 2.0 more like a mild SBC or LS than a "little 4 cyl". Here is my boat with a 3 blade 76 inch maximus prop. Dry weight with no gas, no driver, no tools, cooler, etc is 1729 lbs. We hung the boat o...

http://www.caddyinfo.com/wordpress/comparing-the-cadillac-ats-2l-turbo-torque-to-the-3-6l-v6/ Interesting comparison. I stipulate that with a tune, the LTG will outperform the LFX handily and also not have to rev to 6800 to do it. 6800 will potentially need a gear ratio greater than 3.1:1 if using c...