Custom/Hybrid ZXI + N20?

[TaintlessEd]

Say you had a spare ZXI 900 and a spare 5lb nitrous setup laying around.
Would you combine the two and sennd it?

Any issues or advice from the experts?


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[Ducky]

Yes.

 

[yamanube]

Yes

 

[pigpen]

If you send it, get video


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[x2mafia]

This is an excellent idea

 

[Quinc]

Also yes.
http://x-h2o.com/index.php?threads/who-owns-this-nitrous-equiped-sj.155462/#post-1678815

 

[37]

Yes.

This is no laughing matter.

Wait, yes it is.

Yes.

 

[Just4Fun]

"Nitrous oxide isn't for amauteurs, you'll blow yourself to pieces"

 

[pigpen]

Watch the welds on the intake, don't wanna blow them.


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[TaintlessEd]

Ok but seriously lol.
It wouldn't be an over night thing. I've been thinking about it for about 14 hours not and it sounds fun.
The amount of nitrous I plan on playing with should be safe, not trying to make speed racer or anything but if would be cool.

Idea is still pretty virgin and working on it, I wanted to make this thread to get some good input.



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[jetpilot36]

how are you gonna add extra fuel? or are you gonna run it rich all the time so you can hit the nos at will? whats your trigger system? button or WOT switch?

I would run a standalone so you can be at the proper fuel mixture when on straight motor. then when you want to run juice, youll still be at good mixture because of the standalone. don't forget to purge!!

 

[37]

Idea is still pretty virgin and working on it, I wanted to make this thread to get some good input.

On a 100% serious note, no sarcasm whatsoever, be very careful with running nitrous on a sitdown. You'll be sitting right on top of the bottle. You could blow your taint off.



I lied. That wasn't serious at all.

@jetpilot36 brings up a great point in fuel requirements. Perhaps a triple pickup in the tank could work. Two could feed the carbs and one could feed your nitrous reservoir/manifold or whatever you end up fabricating to feed the fuel/nitrous spray to the carbs. Perhaps a spacer plate between the carbs and manifold could work, maybe metered internally using Mikuni jets so the jets can't back out and fall into the motor. The hard part will likely be making a pressurized reservoir for the fuel feed to match the pressure output of the nitrous bottle.

I have to admit this sounds kinda fun.

 

[jetpilot36]

On a 100% serious note, no sarcasm whatsoever, be very careful with running nitrous on a sitdown. You'll be sitting right on top of the bottle. You could blow your taint off.



I lied. That wasn't serious at all.

@jetpilot36 brings up a great point in fuel requirements. Perhaps a triple pickup in the tank could work. Two could feed the carbs and one could feed your nitrous reservoir/manifold or whatever you end up fabricating to feed the fuel/nitrous spray to the carbs. Perhaps a spacer plate between the carbs and manifold could work, maybe metered internally using Mikuni jets so the jets can't back out and fall into the motor. The hard part will likely be making a pressurized reservoir for the fuel feed to match the pressure output of the nitrous bottle.

I have to admit this sounds kinda fun.

If you're doing a nozzle, which would be the easiest way, an inline fuel pump with a third pick up would be ideal. the fuel actually doesn't need to be pressurized all that much with a nozzle because the pressure of the nitrous will act like a venturi and suck the fuel in from the fuel line. so its really important to have the right volume. that's why the fuel jets are always bigger than the nitrous jets when trying to obtain a "50 shot" or a "100 shot".

but a single nozzle wont work on individual carbs since each cylinder has its own throat. SO im thinking fab up a plate that goes right under the flame arrestors?

 

[jeremy chambon]

You could go to premix and run a few pump off the crank like they do in efi set ups then make a plate under the carb to add fuel that runs on a electronic valve that will like with your wot switch

 

[Quinc]

You might reach out to @tntsuperjet; He built a waveraider that ran nitrous.

 

[tntsuperjet]

Ok so I read this post a bit and saw where someone said to be carful your sitting on top of a bomb.
Nitrous is one flammable gas.
It's only cold oxidizer.
So there is no bomb threat.
I have nitrous on just about everything I own and have had since early 80's.
My tunnel boat with outboard has 175 shot with meth enrichment system,
My jet boat 3 stage 600+ hp system, my sled 60hp system, my infinity 2 stage 175hp system.
Gp1200 with 90hp system
Wave III that had 60hp system.
I hav run thousands of lbs over the years with next to no issues
My arctic cat m7 with 800 big bore and 60 shot went
1,203 hrs from 2007 to 2017 without anything but couple sets spark plugs hand full of belts. And finally this year there end play in main bearings and it's done.
But who would be sad to get 1,000 plus hours from a race motor without nitrous.
That sled has over 500lbs of nitrous through it and at least 20 bottles emptied in 1 push of the button.
That's hold button till the bottle was empty!!!
My raider and wave III both used a secondary fuel pump.
Anyone that says you can use the Venturi affect for a nozzle to help siphone fuel is steering u to burnt piston.
I have done it with a mikuni diaphram pump but you can't go over 15hp system push it to maybe 20.
Good restrictor jet in return line.
The problem with nitrous is you really need a variable nitrous control as bottle pressure drops and the engine goes richer as the bottle pressure drops.
Two strokes work best with methanol inrichment.
So both my wave 3 and raider the stock oil tank was converted into methanol fuel tank.
To be safe you need 15psi fuel pressure so you can deliver fuel with authority.
Two strokes don't like lean burns and they also need a wash button or you cause piston scuffing.
Wash button turns the nitrous off but leaves the fuel inrichment system on so you fuel cool pistons before u shot off the throttle and put motor into lean shutdown mode when u chop throttle

 

[37]

Ok so I read this post a bit and saw where someone said to be carful your sitting on top of a bomb.
Nitrous is one flammable gas.
It's only cold oxidizer.
So there is no bomb threat.

Just to clarify, we're all aware it's non-flammable and not a bomb. @Just4Fun and @pigpen made jokes based on a movie reference (Fast and the Furious, to be specific, where this very error was made). I made a joke about it blowing up because of @TaintlessEd's username, but followed up saying I wasn't being serious (hoping no one would take it seriously... which obviously failed). We're having some fun, that's all.

Thanks for the rest of the input though. That was helpful.

Edited for clarity.

 

[tntsuperjet]

I didn't read all your post.
I just have had so many people tell me that I just go into auto pilot. lol.
You wouldn't believe how many people told me my wave 3 wasn't gonna last more then a couple hits of bottle.
68.3mph blue water boat drags with a 6m6motor stock bore 6m stroker 6m6 cyl in stock wave 3 hull.
Doesn't sound to good for today standard but the Seadoo xp in mod form was a 50-53mph boat

 

[jetpilot36]

Ok so I read this post a bit and saw where someone said to be carful your sitting on top of a bomb.
Nitrous is one flammable gas.
It's only cold oxidizer.
So there is no bomb threat.
I have nitrous on just about everything I own and have had since early 80's.
My tunnel boat with outboard has 175 shot with meth enrichment system,
My jet boat 3 stage 600+ hp system, my sled 60hp system, my infinity 2 stage 175hp system.
Gp1200 with 90hp system
Wave III that had 60hp system.
I hav run thousands of lbs over the years with next to no issues
My arctic cat m7 with 800 big bore and 60 shot went
1,203 hrs from 2007 to 2017 without anything but couple sets spark plugs hand full of belts. And finally this year there end play in main bearings and it's done.
But who would be sad to get 1,000 plus hours from a race motor without nitrous.
That sled has over 500lbs of nitrous through it and at least 20 bottles emptied in 1 push of the button.
That's hold button till the bottle was empty!!!
My raider and wave III both used a secondary fuel pump.
Anyone that says you can use the Venturi affect for a nozzle to help siphone fuel is steering u to burnt piston.
I have done it with a mikuni diaphram pump but you can't go over 15hp system push it to maybe 20.
Good restrictor jet in return line.
The problem with nitrous is you really need a variable nitrous control as bottle pressure drops and the engine goes richer as the bottle pressure drops.
Two strokes work best with methanol inrichment.
So both my wave 3 and raider the stock oil tank was converted into methanol fuel tank.
To be safe you need 15psi fuel pressure so you can deliver fuel with authority.
Two strokes don't like lean burns and they also need a wash button or you cause piston scuffing.
Wash button turns the nitrous off but leaves the fuel inrichment system on so you fuel cool pistons before u shot off the throttle and put motor into lean shutdown mode when u chop throttle

definitely going to need some fuel pressure vs straight venture effect as far as nozzle is concerned. i guess what i what i was trying to say is that it doesn't take 50 or 60psi of fuel pressure like a car's fuel rail would provide. 15psi on the fuel side with either a regulator or a low pressure fuel pump would be perfect, and with the bottle at 1100psi in ideal conditions, the nozzle will create somewhat of a venturi. not so much to suck in the fuel, but more to mix it with the NOS. have you ever ran methanol stand alone with two stroke?

 

[tntsuperjet]

definitely going to need some fuel pressure vs straight venture effect as far as nozzle is concerned. i guess what i what i was trying to say is that it doesn't take 50 or 60psi of fuel pressure like a car's fuel rail would provide. 15psi on the fuel side with either a regulator or a low pressure fuel pump would be perfect, and with the bottle at 1100psi in ideal conditions, the nozzle will create somewhat of a venturi. not so much to suck in the fuel, but more to mix it with the NOS. have you ever ran methanol stand alone with two stroke?

Meth, stand alone Ecu or as primary fuel.