Everyone knows I like the 2.68---and even more so with a small block. But the propeller is like asking ford or chevy questions. I have heard and driven boats with both propellers with gear reduction. The Sensenich is 50% quieter to my ears than the Whirlwind. Now that's only a few decibels, but it ...

without out a doubt he walks the walk. You can never really tell about a person from just reading their post on a forum. We talked for close to an hour and it saved me at least a 1000.00 in labor alone. I never thought about the fact that the super wide bladed might hit my rudders, and was going to ...

Crow---Without knowing anything about your hull and weight, no one can answer your questions. But my boat weighs about 2200 before anyone gets on it. Its 16 x 7.6 with about 6ft of running bottom i.e. in the water at the rear 3 feet. The propeller is 80 inchs---when you are comparing stories and po...

Just remember that you ar going to build me a blower motor with a set of those heads next year. I know your dad said I do not need a blower but I want one. Don't worry I will build another boat with an 8 foot wide hull to hold this motor.

Gents: Just my opinion, but it is based on 30 years of using these engines in an airboat. First, go with the 2.68. I ran DD, 2-1, 2.07-1, 2.37-1 and now 2.68-1. There is no comparision with a heavy boat. Second, the Edelbrock will flow to 5500 easily. Surf the Cadillacpower.com site if you don't be...

Will they fit my long hub and what is the cost per blade on them? Also do they come in 80" ?

Without a doubt I am changing my reduction, but I do not want to buy a new one until I know for sure what the best move is. If I go 2.68 then my 3B 80" falcons are worthless. I measured my cage last night and I have 2 3/4" of room at the closest spot in my cage from the ends of my 80"...

How did you figure on 15 degrees? I was told that an 1/8" was four degrees. So if you are a half inch past the mid point that would make you 8 degrees, which I thought was as far as you could go. I do not have any vibrations or other problems at all. When I set the prop I measure each blade fro...

John, I had 4 people on my boat that can swear to you that I never went over 3000 rpm. I was just cruising down the inner coastal when the head of a valve came off and destroyed the motor in under an hour. The first motor I got from him I ran for about 30 mins and it lost oil pressure because the oi...

Right now my 80" falcon is set at the middle position. I can put 5 guys two dogs and 10 dozen decoys in the boat with 50 galons of fuel on mud and it will take right off. I must tell you that I have had the boat stuck and it was empty. We ran across a dry mud flat and I peeled the surface back ...

I like to build my own motors and normaly I do but these days I do not have the time. After looking inside my motor I can say that I could not build a motor as well as Richard even if I had the parts. There is no doubt that you get what you pay for and it was money well spent.

If you bowfish in deep water it might push you a little fast but you can always put a drift sock out to slow you down. If I really want to slow down I will lower both of my trim tabs and let them drag.

bondsman Both of us had our motors built by the same guy, I just chose to keep my torque lower. I have talked with Richard Potter many times and he said that 4900-5000 grand is it. I have all the dyno sheets on the motor and it makes peak torque at 4150 rpm with its HP peak at 4800 rpm. I going to h...

I'll be the first to tell you, I don't know much about the gearboxes other than I can build an engine to handle the rpms they add. One customer uses a 1.7 and a stroker engine and can pull it to 4800 with some prop, a big 80" 4 blade something, anyway, what kind of rpm can you spin with a 2.68...

There is a big diffrence between our motors. I have a factory Edlbrock intake and a 540 hyd cam. This means that I am not going to pass the 5000RPM mark period. When I had Richard buld this motor I never planned on going any higher then 4400RPM So we built a high torque stroker motor. If I want to s...

I run an 18x7 with a 1.7 reduction and a 3 blade 80" falcon. When bowfishing I idle around at 600- 700 rpm and if I am dragging mud I will push it up to 1000-1100rpm. The reason I want to run a 3 blade is when my friends switched to 4 blade props they idle to fast for bowfishing. PS: I am not a...

Guys I am new to the forum but I am not new to airboats. I started with a DD 15� panther and Chevy small blocks, then progressed to the boat I have now. As far as motors go I have run Cadillac’s for years and swear it is the best motor I have ever seen. A couple of years ago I bought a Buddy Bra...