Fluid dynamics r&d trim nozzle

F

fluiddynamicsR&D

Location
Newzealand
Hey guys!
I've mainly been developing this for the mini jetboat crowd but it may be of some interest for the skis aswell, I'm not sure if anyone has ever looked at going this route but it offers a few advantages over the standard diverter after nozzle configuration.

Pictured is billet stainless to retain a small footprint while still being durable enough to deal with pumping abrasives and debris but I'd be happy to do a run of aluminium if there's enough interest to suit jetskis pumping clean water!

Having the pressure generated directly before the exit means you're not fighting a pressurised Jetstream to turn or trim. Nozzle size can be changed by simply swapping out the insert, this nozzle can go from 70mm upto 90mm.
Clearance between the bowl and deflector is no more than 0.5mm throughout all motion of the nozzle to maintain pressure and accuracy.
I've used a mix of delrin bushes and stainless bearings for a very light and positive steering feel.


Feel free to ask any questions or make suggestions
 

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F

fluiddynamicsR&D

Location
Newzealand
Quinc said:
It looks awesome! Have you tried it on a jetski? And what pump(s) will it bolt up to?
Click to expand...
I can only recall one instance of hearing a story about someone who put this style of nozzle on one and the rider was thrown off....but that's heresay, and only goes to attest to the riders lack of skill and the turning force the nozzle produces.

The base nozzle will be the same for all units, with just the nozzle aperture changing (purchaser will be able to select 3 insert sizes with an order)
Right now I'm sorting out tailpipe castings for the yamaha svho 160mm pump and Kawasaki 310 ultra since they're the most widely adapted drive trains for the small jetboats.
But potentially I can do any model if there demand for it.
 
Sparkplug

Sparkplug

Location
Red Bluff CA
That's above the price of raptor trim. Which as far as I know. Is top of the line and I'm gonna say a better fit for a flatwayer freestyle jet ski. Than this. And flat water freestyle are the guys who spend the most. Second is racers. Maybe this will benefit them. Idk. I'm just keeping it real. A guy would have to see a very large improvement over other setups to justify such high cost vs other systems.

Looks awesome, good quality, and thought out. Not sure if this is a viable market tho. Maybe others have different opinions.
 
F

fluiddynamicsR&D

Location
Newzealand
Sparkplug said:
That's above the price of raptor trim. Which as far as I know. Is top of the line and I'm gonna say a better fit for a flatwayer freestyle jet ski. Than this. And flat water freestyle are the guys who spend the most. Second is racers. Maybe this will benefit them. Idk. I'm just keeping it real. A guy would have to see a very large improvement over other setups to justify such high cost vs other systems.

Looks awesome, good quality, and thought out. Not sure if this is a viable market tho. Maybe others have different opinions.
Click to expand...
The raptor trim system looks to be $1595…so $595 more than what I'd proposed for the aluminium model and $195 more than billet stainless.
I'm also in the middle of developing some attitude control systems with preselects and automatic control of the trim.
 
Quinc

Quinc

Buy a Superjet
Location
California
Be great if you could have someone try it on a ski and give it a solid review. Or if you could make a loaner and let people try it with a deposit? I think majority of riders (weekend warriors) are using the Yamaha 144 and 155 pumps.
 
F

fluiddynamicsR&D

Location
Newzealand
Quinc said:
Be great if you could have someone try it on a ski and give it a solid review. Or if you could make a loaner and let people try it with a deposit? I think majority of riders (weekend warriors) are using the Yamaha 144 and 155 pumps.
Click to expand...
I have a 701 superjet but I've only had it one season and still fall off all the time
I'll see what I can do.
 
Krenn Power Sports

Krenn Power Sports

Site Supporter
Vendor Account
Location
Fort Worth, Texas
fluiddynamicsR&D said:
Hey guys!
I've mainly been developing this for the mini jetboat crowd but it may be of some interest for the skis aswell, I'm not sure if anyone has ever looked at going this route but it offers a few advantages over the standard diverter after nozzle configuration.

Pictured is billet stainless to retain a small footprint while still being durable enough to deal with pumping abrasives and debris but I'd be happy to do a run of aluminium if there's enough interest to suit jetskis pumping clean water!

Having the pressure generated directly before the exit means you're not fighting a pressurised Jetstream to turn or trim. Nozzle size can be changed by simply swapping out the insert, this nozzle can go from 70mm upto 90mm.
Clearance between the bowl and deflector is no more than 0.5mm throughout all motion of the nozzle to maintain pressure and accuracy.
I've used a mix of delrin bushes and stainless bearings for a very light and positive steering feel.


Feel free to ask any questions or make suggestions
Click to expand...
weren't you also making impellers? maybe put some feelers out there for your impellers you make.
 
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