Running a 2 stroke engine on nitromethane rc car fuel!
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- Опубліковано 29 лип 2024
- Here I run my little leaf blower engine on nitromethane rc car fuel! The results are scary! I am not sure what the flywheel is rated for rpm wise. I am confident I exceeded its limit! DO NOT TRY THIS AT HOME AN EXPODING FLYWHEEL CAN CAUSE SERIOUS INJURY OR POSSIBLY DEATH. With that being said I think this engine reached well around 15-18k rpms. I need to get a tachometer and actually measure the free rpms. What did we learn today? Nitro instantly wants to eat the carbs internals alive. This carb cannot supply enough fuel for it to become stable. Returning to an idle was tricky, the engine just wanted to keep revving. Next we try E85 and see what happens! Thanks for hanging out! Please, like and subscribe, it would be helpful for my channel to grow. I have other projects that I am in the process of filming and editing! Thanks for hanging out!
i used to do this to my little 2 stroke motors and chainsaws when i was a kid, would run without a spark plug. crazy power. used oxygen from torches as nitrous for a power enhancer aswell
I used to used nitro in my old tomos moped. Had to use a 125cc dirt bike carb to get it going right.
Did a similar experiment a while ago, pure methanol and Castor oil. drilled out the main jet to about 2x the original cross section area. Got it running pretty good, but was a tad rich. I had to cut the amount of oil in the fuel way back as it fouled the spark plug. The Nitro fuel has a lot of oil as the engines that run on it have glow plug that is more robust and no rings and the oil helps to seal and generate compression.
I like how you mentioned 2 stroke stuffing I watch that station too and I was actually thinking about running that stuff in my in my dirt bike
I fly rc airplanes. I used to fly with 15% nitro. Great power out of a .40cc engine. The engines run best with a cooler glow plug and pretty wet with the fuel settings. My two stroke airplanes would hit right around 10,500 rpm at wide open throttle and idle around 1,200. Very fun hobby. Nitro fuel creates a pretty violent explosion in engine cylinders so that is why your engine revved to outer space and seemed unstable while idling. Take a look at top fuel funny cars. Nitro methanol at its finest . Quarter mile in 4.5 seconds with six foot flames out of the headers.
Imagine switching to 40% or higher 🤣
@@Billskins4dayz 😆 Any engine would really scream with that as long as you could keep the piston rings and piston cool enough not to melt.
I've ran a few 4 stroke weed eater engines on RC car & buggy 30% Nitro from VP. Have done Ryobi, Craftsman, and Homelite. All were purchased out of a small engine pile at a local recycling facility for about $2.00 each. End up buying 2 engines to get 1 running engine most of the time, seems like 50% of them will have catastrophic engine problems but good carburetor and pull starter, and the other 50% will have a junk carburetor and screwed up pull starter but the engines internals will be okay. From my experience running RC car nitro fuel for glow plug 2 strokes in a 4 stroke weed eater engine, how long the engine lasts depends on the person operating it because there are a few quirks that can destroy the engine quickly if you don't make allowances for them.
1. When running Nitromethane at 30% the engine needs about 3× the amount of Nitromethane than the amount of gasoline it would normally require, make sure your fuel system is up to the task. Strongly suggest putting a fuel system that allows you to pressurize the tank with about 2-3 psi. DO NOT PRESSURIZE IT WITH THE STANDARD NITRO RC CAR METHOD OF EXHAUST FITTING/HOSE/TANK FITTING. 4 stroke exhaust is much hotter and prone to flames and backfiring that 2 stroke and will set your crap on fire.
2. Even though 4 stroke exhaust is hotter than 2 stroke exhaust, and 4 stroke engine operating temperature is hotter than 2 strokes, running on Nitromethane will make your 4 stroke run colder than it did on gasoline and it will probably need a hotter burning sparkplug to avoid fowling especially if you're using the higher oil content RC fuel.
3. Don't run stock weed eater exhaust as it will end up holding some raw fuel in it that will end up catching on fire. I make mine out of stainless steel tubing, usually just a simple bend in the direction I need it to point in and no baffles. Play with length and diameter, you can really dial in the engines torque curve by exhaust tuning.
4. Change oil frequently, Nitromethane will turn crankcase oil to a yellowish nasty goop after a few minutes so change it everything you finish running it.
It's the alcohol in the fuel evaporating in the intake manifold that cools (sometimes freezes) the engine. Fun fact.
Walbro makes a gasket set and a spiral diaphragm that’s impervious to any fuel. GAMECHANGER!!
Yes I will have a video on them once I finish moving and get the new shop setup!
The black primer bulb is a big improvement too
this was just a BLAST to watch! Thanks dude!
This is what dreams are made of
I love that laugh bro that was menacing that was 😂
Hi my name is Chris I like your video and you are so cool 😎
Get a bigger carb from an engine about 3 times the displacement. It'll run, but don't bother until you replace the gaskets/pump diaphragm with silicone or teflon. Your instincts were right: methanol and nitro will EAT stuff rated for regular gas...that fuel line will dissolve, too. Fun seeing the kind of power you can make though, huh? :o) Oh, and I'm not sure how cold it is where you live, but it's HARD to get e85 to run in the winter, at least here. I ran my leaf blower on it as a test and I had to dump 30% car fuel straight down the carb to get it to start.
I’m surprised the carb lasted as long as it did. It’s actually still alive. I mainly did these videos to show people what would happen if you did such a thing. The engine isn’t going to be mounted on anything besides my work bench so there is no need to make it run perfect. I was sure to run some premix through the engine after each test run of nitro and alcohol. Next I’m going to revisit the diesel and heat it with a torch to see if it will run without the use of ether. Thanks for the interest in my videos!
@@aaronpratt89 Oh no doubt, it's cool. Just passing on my own experience with having done the same stuff since I was a kid. Run it with a glow plug, no need for the ignition or flywheel? What if you DID put it an rc car? 😈 That thing would be insane 😳 I like the diesel video...cool content, keep it up!
@@guerrillaradio9953 there is a company called zenoah that makes the engines on my scooters, those engines are actually 5th scale rc engines! My brother is a machinist. And he is working on(if he ever gets free time) making me a spark plug to glow plug adapter. I want to attempt to run the diesel with a glow plug(I don’t think my compression is high enough) and see what happens. Niro would be cool to see running off a glow plug also!
Thanks for the support and interest!
Subscribed! I plan on messing with some nitro soon also ..
Hell yea man. This was just an experiment. It’s hard to get the right amount of fuel with a cheap carb like this one. If I put a slide carb on it I bet it would rip!
I had the same engine, husqvarna, found it surprising how durable these things are
This kid is fuckin classic with his mannerism's
Hey I got a project I got motor right now and it's running really fast but it's a two second one have four cycle how fast is it going to go bro
You need to jet this ting
I have done this multiple times and the stock diaphragm type carbs physically wont work, they just cant supply enough fuel and they will overheat the tip of the spark plug and the engine will run away, I had one that the kill switch wouldn't shut it off and it kept running even with the plug wire off lol. I did have great success though with a troy built weedeater that I siliconed the pulse port shut in the intake and I found a traxxas 2.5 carb fit right into the intake hole and ran silicone fuel lines and that thing ran absolutely amazing, it was a bit lean at full throttle but it was fully functional and made good power, I have been thinking about trying it again but on one of my gopeds.
I would love to run a Goped on one. But yea these little carbs can not supply enough fuel for these engines to run right on nitro lol. I was thinking of trying an alcohol carb. But for testing purposes this one worked ok lol. Tanks for the input!!
@@aaronpratt89 the alcohol type carbs for these engines still cant supply enough fuel, to use one you would have to have a restrictor plate over the carb to make it run even remotely right, the biggest problem with nitro fuel is that nitro methane is an oxygenizer meaning it carries it's own oxygen molecules so you need the massive jetting of a large carb but you need the airflow of a small carb because you dont need air, you just need a way to get lots of fuel. That's why I used a traxxas 2.5 carb because it had fairly large fuel passages but small air passage. If I were to do it again I would use the same traxxas 2.5 carb but then add a "power jet" to get the little extra fuel I would need and a power jet if you didn't know is just an extra adjustable passage you drill and press into the outside of the carb inlet, guys use that trick on motorcycle carbs with great success.
@@briang4470 that makes sense to me. I’ve built a few nitro 4 strokes. An the 300% more fuel was always a challenge. This video was strictly for entertainment purposes. But a tiny carb like for a small bore motor wild be perfect! I understand what you are saying and for a rideable two stroke application, I would need a custom carb setup. I have the ability to make a manifold for a slide carb with changeable jets to make this work! With your input and advise, I’m gonna make it work! Thank you for the added knowledge!!
@@aaronpratt89 no problem, as crazy as this sounds you will probally be able to remove the main jet entirely and still be right on the edge of not enough fuel, if you look on here there is a guy that tried to run his moped 50cc on rc nitro fuel and he tried to run I think a 32mm carb and even with the jet removed entirely it was still too lean and would melt the spark plugs lol. If I was you I would pick a large 20-28mm carb and then make a restrictor plate to reduce the air flow in and see what that gets you. Also plugging the air bleeds in the front of the carb help richen it up since the fuel will not atomize as good but with nitro fuel you dont need good atomization you just need a insane volume of fuel. Trying to carburate a nitro engine is difficult but it can be done, but it's just hard to get a carb to move so much fuel and that's why actual nitro race cars use mechanical fuel injection. Hopefully you will get a functional set up and post some videos I would be interested to watch.
@@briang4470 yea I removed the screw completely when I was running it lol it was still way lean lol. I want to make a glow plug adapter and run one. Just to see what would happen. I have some slide carbs laying around that I could drill the jets and try to get enough fuel in it.
Nitro methane is made by mixing propane and Nitric acid at around 800 degrees Fahrenheit. So that explains why every bit of rubber and paper went south for the winter. Nitric acid will dissolve solid gold, your gaskets and such had no chance. Run the thing off of chocolate syrup and I will be impressed.
Nitro carries alot of oxygen and you need about 3xs the fuel
😁👍
used a whippersnipper (australian word for weed eater) and i used nitro methane, and squirted it into the intake with no carby, and it had no rpm limit whatsoever, and somehow it is still together,i would say it sounded close to 20-25k rmps
I’m thinking about running 1/4 gallon nitro fuel, 3/4 gallon gasoline, and a 1:25 2 stroke oil mixture. What do you think 🤔
I don’t think it’s going to mix very well.
Now imagine that on a tuned chamber pipe
I didn't know that this stuff was corrosive, never learned about that w/ nitro 2t RCs, can i still run it on gasoline to clear it?
Nitro rc cars are built to handle the corrosiveness of nitro fuel.
@@aaronpratt89 cool, thx! 😊🙏🏻
R/c airplane fuel has ether 10, or 15 percent of caster oil in it!
Straight methanol is 2x's fuel
Gonna eat the piston also.
Only if I let it sit with the fuel in there. I like to run them with gasoline after the nitro!
This guy gets scared easier than my 12yo daughter does.
i chuckled
Mocking someone for dodging a potential engine explosion is a sign of low IQ. And there is a reason why low IQ is correlated by poor longevity.
please dont breathe in those fumes!!
damn, you are in a building running engines, your cells will be dying.
A little nitro isn’t too bad lol. I vented the garage shortly after running the engine.
Thanks for the safety interest! 😎
what about regular methane? can you run it on farts?
That’s a good one, I have run it on map gas!
@@aaronpratt89 is that methane gas? i dont know what that is
@@jasonbrown5014 mapp gas is a gas that comes in a yellow bottle at the local hardware store. It’s like propane but it runs hotter
@@aaronpratt89 how do you add oil when using gas vapor?
@@jasonbrown5014 well in another video I did, somone wanted to see it try and run on used motor oil. So it had a fuel tank of used motor oil being delivered through the carb as I fed the map gas through the intake. The video is on my page
Bro using a pull stick worrying about the engine blowing up but doesn't have safety glasses on...
I was wearing my Asian designed safety squints
Lol! You have earned my respect homie. Especially considering this is one of the few videos I found answering my basic question of a larger 2-stroke on nitro, and I am intrigued, carry on brother! @@aaronpratt89
@@adeadlyfart13 thanks for the support! I am working on finishing up/ putting my garage together in my new home. Time for UA-cam has become scarce with 3 kids. I’ll be back at it soon enough!!
There is no way that engine is cooling right without all the shrouds on it. Just saying. L
Welcome to my Chanel! That engine has had some abuse, I 100% understand 2 stroke air cooling and I totally agree on the cooling. If you watch some of my earlier videos with this engine you will see that I removed it from a leaf blower for the only purpose of running weird fuels in it. One day its gonna get too hot and seize on me haha