PCM Excalibur 330 in a Barefoot nautique

The phone gps depends on the phone and the software, the problem is they don't update rapidly so you may miss a few 10ths or may even a whole mph. It will get you in the ballpark though, even my Stargazer will move around about a half mph at the very limit on fast (slightly rough) water. I think it just the boat breaking free and then falling back in. Hard to get them to stay out for very long with the hook, but as rough as you can stand @ WOT seems to be the fatest. The water in that video looked like it should have been that way and a run in each direction will take the wind out of it.

I like how at about 1:54 in the video, you think it's already maxed out and then it speeds up a whole other level.

I have no Gps, i will try an smartphone with 'Gps' i don't know if that will work. i dont think it will reach the 50. Last year i measured the speed of my ski nautique with an ipad and it was just 40 i guess this will do 45

Full throttle it sounds and feels really strong! And yes i,m not scared
for a BFN with a std 454.

Nice work.

says it's private?

Yesterday i did another test. I have my doubs about the advantage of the
1.23 transmission. it has a good hole shot and acceleration is very smooth! The aceleration feels a bit like a stern-drive application.
But the speed at 2000 Rpm is far lower than with the direct drive transmission. At 2000 rpm the higher pitch prop does not compensate the reduction of the transmission because the slip of the prop. I also think that the fuel economy of the direct drive transmission is better. reverse is also very different!

sounds good pegged the speedos, have you gps'd it? what was your top speed? wonder when its loaded and towing a footer how fast it will go???

nice setup

I have some news

Today i tested the boat for the first time in the water!

I have done a couple of hours and everything went okay
The performance is very nice! The ACME 422 seems a nice prop for this combination very nice hole shot max rpm is 5000 TRB thanks for your advice!

the only thing i don't like is the temperature of the left cylinderhead
the temperature is about 95 degrees while the right cylinderhead is about 75 degrees i think the circulation of the coolant is oke.

here is a litle clip from today.

http://youtu.be/xUgdkLw_ELM

Ben#155 wrote: Only the raw water pump pulley is very close!

So don't slam on the brakes.

I will try to drop it in first, and see how the shaft coupler height is compared to the engine height, and than i will measure the distance at the front.

You better start over. Someone sold you a defective tape measure. They forgot the 11 and 12.   

What will be the minimum distance between the coupler and shaft seal?

I would NOT move the entire powertrain forward that much.

It looks like you are measuring the entire powertrain (engine + trans) and not just the engine. As stated above, the 1.23 trans is longer than the 1:1. The 1.23 boats used driveshafts that were 3" shorter than their 1:1 counterparts. You will need to get a new driveshaft, or have your original cut down the proper amount. You will likely have to remove the shaft collar... there is not much room for one on a BFN.

You may also need special engine mounts that allow you to put the Chevy in the same place as the Ford. Otherwise, the notches cut in the stringers that allow you to access the underside of the motormounts will not be in the right place.

Here some pictures,

The ford engine is about 103cm long
the excal engine is about 113cm long
the distance between the shaft coupler and ski pylon is 110 cm
(when the shaft is in original place.

my plan is to move the engine crandle 10cm forwards