Just curious of average speeds of 36 PD. Just purchased it and put it on my 16' x 48" with 24" sides bateau. It has a long rake and a 45 degree angle cut on the transom. I had approximately 600 lbs in the boat when I ran it and my average speed was 23 mph on GPS. This was in deep water. Boat built by Elwood Scully for a long tail 5 years ago. Any advice would be greatly appreciated.

what rpms are you turning?

3900

Something doesn't sound right.
Pic of boat would be nice.
Did you try moving weight around in the boat?
Condition of prop?
Hooks in boat hull?

Prop is in good condition and I tried moving weight around. No hooks in the hull. Coondik is going to take it out and run it for me, but I've been working a lot and haven't gotten around to it. I will post pictures tomorrow. It was depressing seeing that speed on GPS.

45 degree transom angle - is that a typo ???

i have a 1648PD shallow sides wit stock 36PD and running 30mph by myself

TACMC,

I have a custom made 16 x48 bateau with 21inch sides and an 18 gallon built in tank that would proabably weigh about the same as your boat or a Prodrive boat with a bone stock PD36. By myself with minimal gear and no choppy water, deep, I can hold 29mph. With another guy, gear, and ice chests etc, I can hold 26mph.

If you are certain that you were totin' 600 # of stuff the other day, I would say 23mph in a 16X48 is nothing to complain about. If you figure 600 pounds, that could be 3 guys including the driver and some gear. In my opinion dat ain't bad speed.

Now, you could check your governor setting because you should be able to turn pretty close to 4000 rpms unless the 3900 rpm was a more comfortable tiller torque for you.

If you have trim tabs check that as well. I had mine bent a little too far down and it affected my speeds. Found a happy medium for running a load and keeping the porpoise off the front and the speed is much better.

Now I wonder if Scully built your boat, you may have a heavier gauge aluminum than 1/8th. Most factory mudboats are totin' 1/8th throughout. You may have a heavier bottom, or your whole boat maybe be more than 1/8th. If that is the case then your boat is heavier in gneral. You could even have a double bottom.

Sometimes everybody including myself gets hung up on deep water speeds. And rightly so, but how does your set-u perform in the shallow stuff?

TACMC,
The speeds seem about right. Can you fill out the below for us to insure that your average of 600#'s is correct.

Drivers Weight :
Passenger #1 Weight:
Passenger #2 Weight:
Average ice Chest Weight:
Any Illegal Substance Weight:

oops I missed the 600Lbs. part.

Uncle Jack-me-off, thanks for your interest in trying to assist me. But can you leave it to the members on the site that actually are trying to help me. But I will answer your question, the real question you wanted to know.
1- 270 lbs, 6'00", brown hair, brown eyes, size 12 shoe , I'm a Taurus and like long walks along the beach with a good bottle of wine, what else you wanted to know, I forgot you PHAGG A$$, Booty Pirate. Did I say that?
To the other folks giving me advise, Thank you very much.

tacmc, pm too ya.

I can see big t will fit right in over here!

Uncle J u might wanna go check out de refuge

Um Uncle Gay I mean J you might not wanna piss him off to bad b/c I don't know what would be worse the taser or his fist kickin your A$$!!!!

Just for comparison, 3 men(570#),6gallons fuel(50#),2 batteries+Troll(100#),willow brush(200#),niknacs(25#)=(900#). 2ft. water-19mph
3690 RPMs
Me alone (210#),tm+bat(100#).fuel(50#),n/n(25#)= (385#), 27mph
3950 RPMs
Stock stage motor. Correction! Removed extra foam air filter, thats all the soupin up I`ve done.
RPMs in nuetral 4330
RPMs at idle 1000
Boat hull good shape (no hooks),{STEEL FLEX hull}.

WHY YALL YELLIN????????????