when going up in nitro percentage from manufacturer recommendation it will ignite on the compression stroke when using a hot plug thus forcing the piston down while piston still not at top dead center (pre detonation). will cause excess heat. going to cold plug when running high nitro content will retard the timing and fire at top dead center . that's how an efficient motor should run. i run a off road monster truck (savage) but spend much time at wide open.
Does those glow plugs work on specific heat range and fuel types ? Culd it work on ethanol for exampel? And what if your small engines exced temperatures do they do knocking back fire? Do those model plains and engines have some sort ignition timing control?
They will control Ignition timing a little bit but as far as athenol fuel goes doesn't really work doesn't make any power and it's very difficult to get tuned properly That's it all feel like it's high compression and a different kind of metal in a glow plug for the cataletic reaction you take place properly A warm 2 hot plug will allow you to tune easier and be more stable especially with an offroad engine
I'm also going to add at least with the race engines most of them come with a shim that you either need to run or not run depending on the nitro percentage you are using most of them will never to tell you to change the glow plug but they will tell you to run the shim or not to run the shim, depending on the natural content
Where does a turbo plug fall into as far as length? Isn't there only one length of turbo plug? That's what's in my o s tz and I've always just ran what o.s calls for I was just curious if you knew about the turbo plugs
I used to use long reach plugs in my vx18 any time I ran 10% or lower. It gave me a nice torque boost but it would ping super hard on startup. It genuinely hurt to start without gloves.
I believed those engines take a short reach plug so what happens if you run a long reach as you increase compression and will wind up with as she is and detonation eventually
@@thebug4046 yeah, I didn't feel like taking out a head shim so that was my alternative. It worked pretty well but it would run really rough with the igniter on. It ran great as soon as the igniter was off unfortunately I don't drive that car anymore because of transmission issues.
@@inoahmann7542 You don't need to remove cylinder had shims Just run the recommended glow plug Removing a cylinder had sham just increases the compression and if you're running a long reach plug that will make it even worse
great info! can you recommend the correct glow plug for a SPORTWERKS 2006 turmoil 1.8th scale buggy ? the engine is .26 , manual recommends {dynamite MC -59) what ever the hell that is THANKS!
@@khaosnitro thanks bud I have a Facebook group to nitro/diesel/gas rc and more just make sure to answer the questions and mention the BUG you can post video pictures and ask for help and get in on the chater lots of great people in their
Will the No.6 fit into a rustler .15 and tmaxx 2.5? Recently I’ve gone through loads of traxxas super duty plugs is there a reason for that? And would you recommend that for the .15 & 2.5
thebug 404 hi thanks I’ve got my new OS plug but my tmaxx 2.5 doesn’t want to idle at all I had this same issue with my traxxas plug but killed the plug each time. I go to use it and it’ll run fine and I’ve even turned up the idle speed I like to run my engines on the richer side not lean so I know i am getting fuel through. And some times I go to use it and it’ll cut out I’ll try and start it again and it won’t start I have to wait until the engine cools down even though the engine isn’t even that hot. I would like it if you could help me out on this and what do you think I should do about it? Thanks
@@DavidJones-xp2sh that sounds like the Symptoms of a very worn out engine if it won't start until it cools off means the piston and sleeve is shot also a very worn out connecting rod rod can kill plugs the 2.5 isn't worth rebuilding the piston and sleeve is almost the Same price as the engine and the pro .15 is a lot cheaper and worth the rebuild but the best thing you can do is go to Facebook look up nitro rc enthusiasts group that's the best place in the world for nitro help I'm in it as well
thebug 404 when I bought it the engine it was blown up but however the sleeve was perfect and is very clean with it only been used a couple of times so my mate gave his piston which we used so I am not sure if that is the problem
To be honest I've never seen one of those engines so I don't know anything about it but what I can suggest is taking the plug out and ordering the same 1 that you currently had in there or seeing if you can Google it or the OS website
So what would you recommend for a Revo 3.3 running 30%? I’ve been debating between OS LC4 or a McCoy 8 or should I just stick to hot plugs like the traxxas 3232x?
@@thebug4046 thanks for that astonishingly quick reply! I’ve only used 20/14 with hot plugs and I’m making the big boy move to 30/10 and was debating between medium and hot.
@@HKvsGlock grab one of each see what one you like more and 14% oil is far to much you don't want more than 12% anything more isn't helping you 30/9 or 10 will need richer tuning and actually run cooler and with hot plugs they are able to be tuned richer so running with 30 is absolutely fine and like I was saying the Traxxas plugs are hot and they are fine with the 33% top fuel garage
@@thebug4046 again, thanks for the help and honesty. any expert tips when it comes to seasonal tuning at high elevation? From my understanding summer is leaner and winter is richer. Also I was running that VP 20/14 stuff only because I don’t have many options locally and wasn’t interested in racing my Revo until now.
@@HKvsGlock well it sounds like you're on the right track and yes summer leaner winter richer you can pre heat if it's really cold out and and can halfway wrap the cylinder with aluminum foil to help hold heat also you don't need to change plugs for the weather also don't tune by temperature tune to where it's running its best i also have a Facebook group nitro/diesel/gas rc and more if you want to check it out post video ask questions and meat some other cool people im the owner
Im only getin like half a liter to a glow plug the tune is spot on they dont blow they get a strange build up on the element then it like pops and misfire like its lean but its not put a new plug in and its fine agen i dont no what causing it
Using too much after run oil or the wrong type of after an oil or something like WD40 can cause that to happen I usually don't use after on a well for the whole season until I'm storing for Winter Also if the connecting rod is severely worn out that can cause your plugs to pop quite frequently
Am I dumb but like if the motor is burning off comppresion why does it mater at all if it's just to start the motor I'm very confused please some one answer me
The glow plug in there is to create a catalytic reaction between platinum and methanol. it has nothing to do with the compression ratio. Nitro glow engines are low compression like any normal 2 stroke engine. NOT A DIESEL
Thank you for the informational video . Just so you know . The higher content of nitromethane like 33% . Actually causes the combustion temp go down , that's why you honestly need to go to a hotter plug . Yes more nitro = more power. But nitromethane actually burns very cool. Yes it's flipping extremely explosive. Yes that's why top fuel NHRA cars always have huge flames coming out of the headers. Another factor of them having the flames is also the amount of fuel they have to put through the engine to keep it in tune while heading to point B. Simplified nitromethane burns cooler, faster, stronger. If our glow engines, actually we're mini 4 stokes with digital ignition our RC's could and would be flame throwers , granted we would need to burn like 50-80% nitro. Lol ok so who is going to be the one to back yard engineer a car type flame thrower kit that's scaled down for RC's ?? Personally I prefer to build the engine to produce it's own flames like the pro NHRA DRIVERS. Hopefully I have helped and not confused everyone. Thank you again for your video.
I have run as high as 70% nitro in rc engines Did a custom blend just to see what would happen and to be honest anything past 35% of the engine's not ported properly it doesn't really make a more power just has higher and higher fuel consumption Is what I noticed and I have burned 100% nitro And to be honest It's not even explosive it Burns almost like kerosene and takes a little body heat and time for it to get going It's the fact that it carries its own oxygen and when you mix it with something like math and all that's when it becomes more explosive Definitely cool stuff to play around with i am going to try nitropropane Next when I can get my hands on some and see the difference between it and nitromethane just for shits And giggles
@@thebug4046 Hmm well I don't mind being wrong . But I just figured out my mistake . Bro you need or even if we can Make our own TOP FUEL ! Yes I was thinking nitromethane was top fuel but it's not . Not even close . They get to have any and all types of additives . There drums of Top fuel if there dropped or if you took a beater/ sledge hammer to the drum your u can make that fuel ignite and exsplode. Now I will go look for it but there is a guy who has built a 5 hp briggs engine that's mounted on a testing table and he takes straight nitro and sprays the intake side of the turbo :) with a spray bottle by hand to simulate nitro injection . Well some concerned subscribers asked him if he was worried about the nitro getting pre ignited and making a fire ball while doing an open air by hand fuel addition . Well he made a video of him doing it then stops spraying the turbo and just sprays the engine down. Well sir it lights harder and faster than #1 diesel aka kerosene. That's where I learned that nitro actually burns cold while making way more power with a nice sized fire ball all over the engine . He said it was cooler from engine to the flames ,than it was from flames to engine . I believe we all learned something that day. Btw #1 diesel burns really hot , so hot in fact that you can only burn. 25% kerosene 75% diesel in a LB7 dmax engine. Or you will melt the heads to the block. You make the nitropane . I will grow organic hemp to turn it into it's alcohol based fuel. I will get my life that it would be twice as good corn ever thought it was. Hemp batteries actually out done lithium and lipo by a good margin. That's the big reasons why Canada got to play with hemp and we didn't . We are owned and controlled by luciferin / devil worshipping bankers that doesn't want any American or earthing to be able to Benefit humanity or have the ability to take away any of there power . Apologise for right turn but I am one of many Native American's that wants to, will die trying at least to benefit humanity mostly just US Americans. Until then I have gotten back into RC . NITRO of all things only to find out that traxxas nitro engines are pretty much desk top paper weights . What kicks me in the Nuts is , Traxxas let's Losi, OS , and others to fix there fix able bad engineering . Speaking about there Uber brittle composite bodied carbs that crack, won't hold a tune , or hold it's fuel. But yet I live down the street from them . Yes when I go back to there retail store going to do my best to respectfully voice my 2 cents. Only to probably waste my valuable time trying to tell a Corp person about something they don't even care about. I am sick of being a sheep, sick of being looked down upon by someone who doesn't get dirty, hasn't actually had to work out here in the fields of the real world . To only get a educated F you from them . Apologize , yes my care , give a damn for my fellow human beings on earth is top priority . Well I might be a Care Bear , I can't help I made friends with thunder cats and they love me 😂. Keep up the good work.
@@leshulsey5674 See a lot of people believe nitro Is very explosive and unstable and it's actually not you can smack it had it do whatever I want with it doesn't blow up the only reason why it explodes and people are afraid of it is because people use it as an oxidizer to make bombs with It also has an extremely different fuel to air ratio because it Carries its own oxygen so in a gasoline engine the air fuel ratio would be around 14: to 1 where nitro is almost 6:1 It can almost burn without any air now with glow engines aka nitro They don't require nitromethane to run Since they work on a catalytic reaction with fairly mild to Loken pression you can just burn original glow fuel which is methanol and oil it will need a larger idle gap because the fuel does not contain its own oxidizer and it will be more sensitive to weather change a lot of people seem to think because these engines have a glow plug that they're similar to a diesel and in fact they're not even close There A low compression 2 stroke engine that relies on a catalytic reaction to run the plug actually stays a lit the entire time it's running because of the reaction Now the difference between diesel and kerosene some people believe they are the same and they're actually not diesel is much thicker And a more oil I then kerosene Which is more like paint thinner They both have different Ignition temperatures although you can burn both They both have different Ignition temperatures although you can burn Kerosene and a diesel engine it's not always the best for it since it doesn't have very much lubricity for it the injection pump and injectors Which run at extreme tolerance as and very high pressures around 5 30.000 PSI Now there is diesel RC engines which are variable compression no fuel injection and they run on a mixture of kerosene ether and Castor oil
Simple rule of thumb hot engine cold glow plugs cold engine hot glow plug in other words if you have an engine that runs at high RPM cold glow plug if you have an engine that runs low RPM hot plug.
Hi sir, your tips are also valid for airplanes engines? Nice video sir. Well watching some people comments I got wondering why people are so confusing, man ??!
Yes that will go for airplane and heil engines to. I'm not sure man people are just freaking ridiculous sometimes to make up all sorts of things they don't know what they're talking about. 💯🍻
These are a normal 2 stroke engine the glow plug has a catalytic reaction with the fuel after the the igniter is removed it stays lit the hole time it's running from the chemical reaction
Hey having a problem with a xtm 24.7 I keep burning out glow plugs can’t even get a tank in before it go outs out it’ll run great for few mins then I can’t tell I’m losing power until it just gives I’m running OS medium no.8 plug and VP power master 25 % nitro any ideas were I might be doing wrong ?
That's because you're running the wrong plugs and your running too lean 25% needs richer tuning VERY IMPORTANT DON'T TUNE BY TEMPERATURE! Run a OS LC3 OR LC4 Glow plug they are standard plug engines the OS 8 is a short reach plug Running a short plug in a long reach engine will cause lower compression as well as flame travel issues and timing problems also make sure you have no fuel or exhaust system weeks and your throttle boot is not torn
Thanks ! makes sense last time I listen to that guy at the hobby shop I been messing with the tune trying to figure it out I’ve gone thru the truck no fuel or exhaust leaks and has a fresh throttle boot it all came down to the wrong 😑 plug going to order some plugs and get this mammoth 🦣 Bashing again !
@@xtmnitro2355 It's very common people just guess what supposed to be in there and have absolutely no freaking idea I see it all the time I have the exact same engines you if you scroll through some of my videos you will see a rebuild I did on it And a quality fuel really helps keep your oil content 12 or a little under those 24.7 are a monster!
I have watched that rebuild vid serval times already I’m an xtm fan I have there little torque monster .15 the screaming .18 and now there absolute Monster 24.7 my fav thus far I’m not too sure but think I’m just missing there 457 thanks again your the man
Yeah it's funny how people will go out and spend a whole bunch of money on cheap plugs burn them all up but they don't want to spend the same amount of money on a few good ones at the at least last a couple gallons each lol
If you know how to tune and run a good quality fuel keep you oil under 12% avoid Traxxas they can last gallons no problem i have plugs that are years old and still working
That's why you run whatever is required for the engine most RTR off road engines required to run Medium to hot plugs cold plugs can do the same thing because they do need leaner tuning That's why I mentioned to read the owners manual
