question about nozzle angle

[kwiktsi]

On my Speedster 150 SCIC, it looks like where the nozzle pivots to steer, there is a bushing that will allow you to flip it around and angle the nozzle up instead of down like it is now. Is there any speed to be gaines or any advantage to flipping it over? I don't want to do it if it will just make the boat porpoise or something. Anyone ever mess with this?
Joe

 

[timmyboy76]

kwik, try'n to visualise, but flip'n it over, wont that put steering linkage on other side?, ask, because havent seen one,....also, I'd think that it would then thrust upward and out the water, caus'n the back of boat to sit more, and nose of boat, be up higher, and with the thrust, wont be there, since shoot'n up ....just observing???

 

[seadoosnipe]

Nozzle position....

You know, I don't know why they don't put the manual VTS systems on these boats.

I have a 1997 Challenger with the 787cc engine and I got a manual VTS, which I use religiously when I drive, especially when pulling someone.

Talking about flipping your bushing over, it will depend on how many people you have riding, the weight displacement and how much of upward angle there is.

With my VTS adjusted to angle my nozzle down, I get good "hole shot" and it helps to keep the nose down when bringing up a skier. But if I go WOT with the nozzle in the down position, I dont' get full speed. When I slowly move the VTS in the direction to angle the nozzle upward, it's like the hull lifts up out of the water somewhat. Like I'm riding lighter in the water......which gives me good speed, easy steering, and just all around good performance.

The only problems I see with you changing the nozzle direction is that, if your pulling a tuber or wakeboarder, you may throw water up at them, or if your just WOT for the speed, you might start to porpoise. But, if it's not bad, having weight move foward, may stop the porpoise and allow for better speed and performace..........so, it's really up to you to experiment with.:cheers:

 

[kwiktsi]

kwik, try'n to visualise, but flip'n it over, wont that put steering linkage on other side?, ask, because havent seen one,....also, I'd think that it would then thrust upward and out the water, caus'n the back of boat to sit more, and nose of boat, be up higher, and with the thrust, wont be there, since shoot'n up ....just observing???

Not the whole nozzle. Where the bolt goes in the bottom of the nozzle that allows it to pivot (steer), there is an oval hole in the nozzle with an oval spacer that sits in it and the hole for the bolt to go through is drilled off center in that. Stock, it is setup so that the nozzle is pointing down. If you flip the bushing around, it will point nozzle up a bit, which *usually* results in a bit more top speed, but may cause the boat to porpoise. That's why I'm hoping someone has done it already and I can learn from their experience .

You know, I don't know why they don't put the manual VTS systems on these boats.

I have a 1997 Challenger with the 787cc engine and I got a manual VTS, which I use religiously when I drive, especially when pulling someone.

Talking about flipping your bushing over, it will depend on how many people you have riding, the weight displacement and how much of upward angle there is.

With my VTS adjusted to angle my nozzle down, I get good "hole shot" and it helps to keep the nose down when bringing up a skier. But if I go WOT with the nozzle in the down position, I dont' get full speed. When I slowly move the VTS in the direction to angle the nozzle upward, it's like the hull lifts up out of the water somewhat. Like I'm riding lighter in the water......which gives me good speed, easy steering, and just all around good performance.

The only problems I see with you changing the nozzle direction is that, if your pulling a tuber or wakeboarder, you may throw water up at them, or if your just WOT for the speed, you might start to porpoise. But, if it's not bad, having weight move foward, may stop the porpoise and allow for better speed and performace..........so, it's really up to you to experiment with.:cheers:

Thanks, I may flip it before the next time out. I just didn't want to do it and have it be horrible to the point that the boat sucks to use and be stuck like that for the day or something. I agree, I wish they put the manual VTS on them all as well- especially a boat marketed as a "speed" boat. I have wondered before if it can be converted over. It looks like the same nozzle, they just use the bushing to make it stationary. Should only be the lever assembly, cable and some misc little hardware. Shouldn't be too hard to do, I don't think..

 

[seadoosnipe]

Control handle...

If the control assembly is the same in dimensions where it passes through the hull, then you might be able to conver it. All you'd need is the control assembly with the VTS, a cable and the right nozzle that has the ability to pitch up and down...........

I wouldn't give mine up for nothing!..................:cheers:

 

[timmyboy76]

ok,...I knew I didnt know that one....:rofl:

 

[kwiktsi]

If the control assembly is the same in dimensions where it passes through the hull, then you might be able to conver it. All you'd need is the control assembly with the VTS, a cable and the right nozzle that has the ability to pitch up and down...........

I wouldn't give mine up for nothing!..................:cheers:

I gotta get pics. My nozzle looks like it is probably the same one, they just use the bushing to hold it fixed. It has the arm on the side for the cable and all.