Boost Bottle for freestyle?

[xxx2]

IMO it would be totally useless in a Superjet. The instant you hit the gas you are over 3,000 RPM, which makes the bottle useless. If it does help your low end like they claim, it'd be a lot more beneficial in an ATV.

I've tried one on a banshee before, I didn't feel a difference.

That's where the bottle comes into play:smile:
where it would help would be when you hit the gas, let off (builds up a charge),and hit it again(boost) A.K.A Brap!
On a banshee, How much did you brap it? If while under a load it had to be a jerky ride!

 

[Speedfreak]

The snowmobiles are turning better than 3000 rpms when they start pulling also,yet they still use boost bottles,hmmmmmmmm I wonder why? Also it is questionable how much actual traction snow offers.

I have seen a few sleds run snow has a ton of traction when you are scooping it up like a track does

If you could figure out how to build that kind of traction into a ski then you would have all this search for low end grunt all figured out.

If a ski could turn a 13 inch 5 blade propeller like my boat then there would no worry about low end punch

 

[xxx2]

Tunning difficulty with various setups. Lack of R & D makes a big diff. Volume of bottle, length of hose, interdiameter of hose, manifold inlet size and placement. There are tons and tons of diffrent combos for anything.

Tuning should not be difficult for reasons I stated earlier, There is allot of information on the web concerning this topic, There really is no lack of R&D.
Volume of bottle, hose length,Inlet size, Manifold placement (Not So much, But closer to reeds better) There ARE ton's of diffrent combos, But the theory is the same.

 

[Waste Land]

or.....you could just send your cylinder off and get 5x better response and power

 

[xxx2]

or.....you could just send your cylinder off and get 5x better response and power

Yea but why would you not send your bottom end in also to get a stroker, and get 10x? Or your whole boat and have them build it for you! Like I said before there are people who tinker, and there are people who buy from the tinker-er's (nice verbage huh?)

 

[kurtwolff]

I agree xxx2, it seems like a good idea!

By the way Waste Land, your sig contradicts itself....

"If you did not/do not go to college your worthless and from another social class......its a proven fact"

Maybe you should check your grammar, and use the correct form or the word (you're). Also on (it's). -Kurt

 

[LBE]

"If you did not/do not go to college your worthless and from another social class......its a proven fact"

Maybe you should check your grammar, and use the correct form or the word (you're). Also on (it's). -Kurt

:haha: :haha: :haha:


All this talk of the bottle... How bout a blue bottle with NOS on the side?
:haha:

Alright, back to my bottle............of beer.

 

[Waste Land]

By the way Waste Land, your sig contradicts itself....

"If you did not/do not go to college your worthless and from another social class......its a proven fact"

Maybe you should check your grammar, and use the correct form or the word (you're). Also on (it's). -Kurt

You dont get the joke apprently. Eh. My girlfriends parents dont like me or want me dating her because "He's from a diffrent class, he doesnt go to college." As in....I'm from a "lower class" not trying to make me seem better then anyone else.

Although correcting my grammar is pretty cool, you wanna hang out with my girlfriends dad? Here, I'll fix it to please you. I guess I want be dating your daughter anytime soon, ********. Out before I ever got in

 

[Big Kahuna]

I disagree with your theory Big Kahuna,if everyone thought that way there would be no Lamey cylinders,no aftermarket heads ,no pipes and only single carbs.Just because it hasn't been done yet does not make it a bad idea.It is proven on most other types of two stroke applications and the thing is freestyle is relatively new ,not to long back no one was worried about low end response and acceleration it was about hp and the more the better.I think it would be well worth looking into.To the best of my knowledge their are no drawbacks to this system and there are no moving parts,as far as the keep it simple theory it doesn't get much simpler than that.

If your saying Freestyle is new, then I guess 27 years old +/- is very young in a sport that has only been around for about 32 +/- years...........

Freestyle has been around almost as long as closed course racing. I am not saying it wont work, but I am sure plenty have tried......... If the Lamey cylinders did not work then they would not be produced anymore...... but they did.

just my 2 pennies,

 

[Matt_E]

I might point out here that such boost bottle would prove to be a MAJOR pain in the ass if & when you sink the ski .
I am tinkerer myself, but the one big thing I have learned is to stick to simple, reliable mods that have a fair performance/(price+effort) ratio.

 

[xxx2]

I believe he ment new as in, look at daytona last year then look at it this year. It wasn't as big of a sport a few years back (granted people were doing it) but the the majority of R&D has been for race boats. You say you are sure plenty have tryed them before(on freestyle standups), Where have you seen them used? Or are you just assuming that?
About it being a MAJOR pain in the ass if and when you sink the ski. Let's think about this, your boat fills up with water,water enters carbs and into the manifold (Water would have to fill the manifold for it reach the bottle,Even then it would be a sealed air pocket,So I doubt that would be a problem) but lets say you fill it up with water and you are upside down and sunk (you should be worrying about other stuff by then) As soon as you right the ski water is going to run out of the bottle. The concept IS allot simpler than you are trying to make it.

 

[Matt_E]

Heck, try it out. Shouldn't be too expensive, or complicated.
A bit of advice for making it work: I have a manifold that is set up for such a thing. It's got threaded 1/4" NPT holes, currently with plugs. You could just screw barbed fittings in there and use rubber hose. That should keep things simple, and easy to remove if you desire to do so.

 

[xxx2]

I may try it, More or less just tossing the idea around.
But I do appreciate all the comments and suggestions:scratchchin:

 

[sflsurfrider]

I believe he ment new as in, look at daytona last year then look at it this year. It wasn't as big of a sport a few years back (granted people were doing it) but the the majority of R&D has been for race boats. You say you are sure plenty have tryed them before(on freestyle standups), Where have you seen them used? Or are you just assuming that?
About it being a MAJOR pain in the ass if and when you sink the ski. Let's think about this, your boat fills up with water,water enters carbs and into the manifold (Water would have to fill the manifold for it reach the bottle,Even then it would be a sealed air pocket,So I doubt that would be a problem) but lets say you fill it up with water and you are upside down and sunk (you should be worrying about other stuff by then) As soon as you right the ski water is going to run out of the bottle. The concept IS allot simpler than you are trying to make it.

or you could put a small drain valve at the bottom of the bottle.... or get an 800 or something :biggthumpup:

 

[Big Kahuna]

I believe he ment new as in, look at daytona last year then look at it this year. It wasn't as big of a sport a few years back (granted people were doing it) but the the majority of R&D has been for race boats. You say you are sure plenty have tryed them before(on freestyle standups), Where have you seen them used? Or are you just assuming that?
.

Do you know the difference between a Superstock/Open Class ski vs. a freestyle ski? There is not a whole lot, just port layout and prop pitch.

 

[xxx2]

I think your forum habit's have rubbed of on me, Charlie(Starting Controversies) I think I will go back to lurking now:sneaky:
"There is not allot of difference, just port layout and prop pitch'' I am not sure what you mean by this, Porting on a 4 stroke doesn't affect a whole lot unlike a 2 stroke, There is a huge difference between top end and bottom end porting, Once you start messing with Port Windows,Exhaust Ports,Main/Front TraSecondary/Rear Transfers, Boost Port(s),Port Timing,Port-Time Area, Etc. You can change a 2 cycles performance charicteristics drasticly.

 

[WFO Speedracer]

Do you know the difference between a Superstock/Open Class ski vs. a freestyle ski? There is not a whole lot, just port layout and prop pitch.

I was thinking ,and I may be wrong here, that the superstock guys really are not concerned with low end throttle response or low end hit whereas on the freestyle boats it is a major concern.Also you really don't need low end hit when someone is standing there holding your boat for you at the start line.:haha:

 

[Waste Land]

I think your forum habit's have rubbed of on me, Charlie(Starting Controversies) I think I will go back to lurking now:sneaky:
"There is not allot of difference, just port layout and prop pitch'' I am not sure what you mean by this, Porting on a 4 stroke doesn't affect a whole lot unlike a 2 stroke, There is a huge difference between top end and bottom end porting, Once you start messing with Port Windows,Exhaust Ports,Main/Front TraSecondary/Rear Transfers, Boost Port(s),Port Timing,Port-Time Area, Etc. You can change a 2 cycles performance charicteristics drasticly.

....lemme recap for him...

the diffrence between a SS RACE JETSKI(SXR/Supertjet) and a FREESTYLE JETSKI(SXR/SUPERJET) is pretty much just prop pitch and port specs.

You telling BK that info is like me saying your ski is green

Also you really don't need low end hit when someone is standing there holding your boat for you at the start line.:haha:

I take it you've never raced before? Hole shot makes and breaks alot of races.

 

[xxx2]

What I am Saying is porting and propping of a boat isn't a LITTLE difference, If performed correctly. I wouldn't imagine a SS RACE SKI isn't going to be propped as low as a freestyle ski, Nor does a freestyle ski need the topend porting of a SS RACE SKI. Maybe I'm missing something here:ugh:

 

[WFO Speedracer]

What I am saying is if you have a starter holding your boat for you then off idle low speed hit is not as big of a concern.No I have never and will never race,thank you.But I did sleep at a Holiday Inn last night so its all good.