I guess I should mention that this boat has 3 foot k-planes out back. They are the biggest I have ever seen. Supposedly this effectively lenthens the boats hull by that amount making it even more stable in rough water.

Ran across this clip of Barry's flat deck 31 on the delta..not sure if you have seen one Rick.

I believe Tom produced 3 of them...

http://youtu.be/EZdq***Br2U

not sure that URL works....

I don't dispute any top speed. Everyone wants to go 100mph. that seems to be the magic number for boats. I would be happy to meet you at Folsom sometime, let's wait for good weather and a lake with no logs. There will be plenty of good weather to boat in, just be patient. Doug

could not get it to work... Would like to see this kind of stuff if you have it.

Didn't think you did, but I have had several questions about this boat - that I myself have not yet been able to answere - and the top speed is one of them. Frankly, I was very surprised at the lack of performance at Lake Tahoe but was told this is to be expected because of the over gearing.

I have a lot of experience at Folsom but not in winter. Warmest clear water lake I have ever been in. Does it get logs too like the Sac??? As soon as I see a weather report that says its going to be 75 degrees in Folsom I am out of Reno and on my way! I will contact you when I see a weather report like that (As long as there are no logs...). We are hating snow already and we have another 5 months of it to come....

Tahoe Performance
 

I have been boating Tahoe for some time now, there are two things I will promise you. 1) You will lose 18 to 20% of your power due to the lack of oxygen, compared to sea level. 2) The rule of thumb is to drop 4 inches in pitch to maintain the same RPM you turn at sea level. But you will still lose speed, you won't know how much untill you make the changes.

Brett is the man when it comes to props. He labbed my props for my Fountain and flat nailed it. I think running at Folsom will confirm the sellers claims of speed, or not. But it will give you a baseline to begin dialing in the boat.

I am betting on a 4 inch drop and maybe some tweeking by BBLADES to get you to the sweet spot.

Good Luck!

Running prop slip numbers, 100mph seems possible. Figure 7% propslip or so for a cat. Your slip at 75mph could be higher because because the hull isn't packing as much air.
It should have 1.36's or 1.35's. Never heard of 1.38's. A 4" drop in pitch should gain you 800-1000rpms and you can plug those number in as well.
http://go-fast.com/Prop_Slip_Calculator.htm

John, I agree wholeheartedly! I tried to get through to Brett once already but he was not in. Will try again after the holidays. I think the seller had the boat dialed in for him, so the only thing I need is to get a set of props for Tahoe.

Rick

I think it is 1.36... If I hit 4500 rpm then it sounds like a drop from 28's to 24's would get me to 5500 rpm at most. Perhaps I need a little more drop in pitch like a 23 ?

The previous owner specifically warned me that if I used too high of gearing it would put an unacceptable strain on the motors and I could damage them - bend a rod, etc., that I needed to properly gear it for the elevation at Tahoe. This is where Brett of BBlades comes in.

I have a set of 22P bravo 1's in great shape if you feel you need these. $550 to you door for the pair. They are bone stock with no dents dings scrapes, ect.