New Vision .21 build

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julianconde

Well-Known Member
Joined
Jan 22, 2009
Messages
5,654
Well heres a Vision craft .21 Tunnel I have been working on. I purchased the boat from Beau Parsons Brand new. little stuff needed to get this boat in the water and start the break in process.

I have the following gear on the boat;

Novarossi Keep 21 Outboard engine
Nova Header
SSP NR pipe W/extra Muffling
OS Lower Unit with a Stump FAB Cavitation Plate

need to finish;

install Stump Fab throttle cable holder and setup
install Stump Fab universal Oiler System
Drill out holes on the OS steering arms and setup
 

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Last edited:
Very nice lookong boat and build...
Hope you are not planning on running water AND that full air cooled head?

I needed to restrict the water alot on mine to get it to build enough heat with all the fins machined right off (so pretty much a standard water cooled head).
Cheers
Kris
 
Julian getting back into tunnels? Hell yeah! WooHoo!

Kris, Show us a pic of the head with the fins removed when ya can. (no photo-shopped stuff either) :)
 
Very nice lookong boat and build...
Hope you are not planning on running water AND that full air cooled head?

I needed to restrict the water alot on mine to get it to build enough heat with all the fins machined right off (so pretty much a standard water cooled head).
Cheers
Kris

Yeah Ron Shaw text me a picture of how he cut the fins off the engine Or just buy a water cooled only head.

I will be restricting the water on this engine.
 
Julian getting back into tunnels? Hell yeah! WooHoo!

Kris, Show us a pic of the head with the fins removed when ya can. (no photo-shopped stuff either) :)


Crazy huh getting back to where I started lol. It will be fun can’t run my twins all the time they eat up a lot of nitro very quick lol.
 
Julian getting back into tunnels? Hell yeah! WooHoo!

Kris, Show us a pic of the head with the fins removed when ya can. (no photo-shopped stuff either) :)


Here’s a picture of what Ron Shaw did.
 

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This is how we run the head on Dons Keep. I actually cut it off at the pond with a dremel and cleaned it up.

Cooper Pipe Mount 1.jpg Cooper Pipe Mount 2.jpg
 
Those heads above still have WAY too much cooling IMO
 

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It is what is left of this head

I plan to also fill in the cooling cavity with JB weld and machine a 2 to 3mm deep groove with a 3mm ball nose end mill to ruduce the volume of water. Works VERY well on my old 35+ outboard :)

It is very important to load the Novas and heat em up hot and run rich to really get them singing... hope I can get my motor to "2nd stage" on my SAW boat as it was on the weekend on my oval boat...those cooper pipes sound soooooo good when revving hard!!
 

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Just put a dd cooling cap on it .
 

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