You cut of the stinger at the back of the exhaust, that’s a pretty important part of the exhaust, it deflects the shockwave which then pushes the fuel/air mixture back in the combustion chamber. By cutting that off, thereby making the stinger bigger and reducing the effectiveness of the resonance. I’d have left the stinger like that, added a tube in the same diameter and then bolted the muffler to that. It’s gonna work but it’s not gonna have as much power as it could have. A 2 stroke is just Very sensitive in terms of exhaust, sometimes just small changes make a big difference in terms of performance and fuel efficiency.

@Henrik.Yngvesson

17 күн бұрын

He probably doesn't need the full power of that engine, and it won't get as hot.

@iliasminas7711

17 күн бұрын

100% agree with this

@Chopped93VX

17 күн бұрын

You know, normally I would agree with this stance because there’s a lot of reason behind what you’re saying. However, I believe you have heard a lot about two strokes and know some really great terminology and fundamentals but don’t actually know how they really work; if you look at the size of tubing he replaced it with the difference is negligible, and in fact the stinger is not what creates the reverberating shockwaves, it is the taper down towards the stinger on the expansion chamber that creates those reverberations. However even if what you said about the stinger was true, again the difference in pipe diameter is so small it’s likely to make little difference if any at all. Good comment though partner, gives everybody some food for thought.

@jasonbirch1182

17 күн бұрын

"I'll just hack up this tuned pipe that is the heart of a two stroke with wrong diameter and a big step down lip.". Then "I thought it would be faster". "I can't figure out why it's running weird/hot/blew up".....every two stroke build on the internet.

@jasonbirch1182

17 күн бұрын

​@@Henrik.Yngvessonunfortunately that's not really how it works. Screwing with pipe diameter and length can cause lean/rich spots at different rpms because of internal and pipe resonance fighting each other. That's why they are "tuned" to a specific power/rpm and many other factors. Even changing the load is a factor. Let alone airbox and the fact that he still has zero clue how to tune a carb somehow.

A tip because I value the work you put in to make content. All the custom fitting is the part I love about a build. Your solution to the oil tank is awesome and the belt box mod will work great. Super cool way to trim out the body, I dig the rivets!

@ratherBweldingChris

17 күн бұрын

Thanks for the tips!

@waynerogers379

16 күн бұрын

​@ratherBweldingChris the metal trim looks ace round the cut outs top job but 💯% you should engine turn them they would look mint with the small circles on it 👌🏼

@joshblainer2652

12 күн бұрын

​@ratherBweldingChris you should build somthing like this kzread.info/dash/bejne/a3qIpqt_e6Tdeqg.htmlsi=xiFYDqKTR__YiYgC

The aluminum trim you added really put the finishing touches on the back end.

I think you should take a look at baja bugs air scoops. It would hide a lot of what's going on in the back and add more air flow where you need it.

Even something as simple as an oil tank is state of the art. 🎨 Getting closer to paint. Great episode Chris.

considering snowmobiles operate in the freezing cold i think oversized cooling could be a win

I commented about the thin fiber glass in that area. Bravo, that aluminum trim is mint.

@jimbagle.3939

16 күн бұрын

That said, you said something about removing the rivets to paint the fiberglass body. If you do end up doing that, i'd suggest using some sort of glue, epoxy, or silicone in between the aluminum and tje fiberglass. Vibration will cause the rivet holes in the fiberglass to get bigger over time. Even if you put a plate on the back side. Eventually, the trim will get lose and rattle Unless you do something about it.

Looking good. On the airbox. I would forego the tubes and cut and modify the box itself to accept a panel style air filter such as ones used on fuel injected four-cylinder engines like the 22RE.

running that intake so close to those plug wires may cause issues later if a plug wire cracks and could short the spark out to the intake instead of the plug.

Heatwrap the exhaust to help insulate the fiberglass

DANGIT DUDE, PUT A SHROUD BETWEEN YOU AND THAT RADIATOR, ESPECIALLY BETWEEN YOU AND THE CAP, AND ANY HOSES. BUT THE ENTIRE RADIATOR IS BEST! ...While I'm in the dad lecture mode, maybe also at least wrap the top bars of the cage in foam too, in case ya accidently bounce your helmet off it, landing a jump one day! This thing is rad, and you know I'm a long time loyal fan. Love so many of your builds. I just care about your safety dude. If you die in a crash, you won't get the chance to become a mega legend of fabrication. You really just need to consider this sort of safety stuff, for both your own safety, as well as those inexperienced aspiring fabricators who always watch your videos, and who may immitate your builds, or approach. Your hard work, and high level of skill, is definitely inspiring. .You're seriously good at many things, relation to vehicle engineering, but please consider important safety factors, with each build, more seriously.

@WithoutCertainty

17 күн бұрын

I already tried to convey the importance of this. Especially after that guy got burned badly at the Cletus event.

@DetroitMicroSound

17 күн бұрын

​​@@WithoutCertaintyThank you. I love many of Chris's ideas, and really admire his engineering, and fabrication capabilities. If an attorney spoke with Chris, about content safety standards, I'm pretty sure they would lecture Chris, much like me. He's pretty big on YT now. With that, comes a certain level of social responsibility. An attorney would say, "If you ignore health and safety, you really need a big disclaimer before every single video begins, that says 'Please do not attempt to build, ride, or drive the kinds of vehicles I do. Some of my designs, pose very serious health risks. You could be seriously harmed for life, or be killed." I hate sounding like a lecturing dad, but I feel like I have to say this kind of stuff. His ideas are often really great, and at times, downright genius. He just needs to take a few certain safety factors more seriously.

I love this project; by far my favorite project

When Minibuggy net was online, there were discussions about radiator sizes for using liquid cooled snowmobile engines in the spring and summer and out in the desert. General consensus was using double the size of what was on the snowmobile. Usually snow would pack up on the radiator to help keep it cool. Most were using Honda Civic radiators. There's not much on the specs, but Chenowth (pronounced Chen-ith) had the Minimag back in the 80s that used I think it was a Yamaha Enticer 570 2 stroke liquid cooled snowmobile engine, but no idea on the size of radiator. But it was kind of a well known buggy back then. You can never have too much cooling. As long as you can put a coolant temp gauge on there and make sure the temp is a lot colder than the coolant boiling point.

@fishnfreak04

16 күн бұрын

You shouldn’t need a thermostat. I run no thermostat on my 1997 Polaris 600 in Minnesota, even when it’s -20 I’ve had no problems. Just takes a little longer to warm up

You are what is known in the trade as a “Multi Skilled Specialist Fabricator”! 😮

The quality of your work and attention to detail is top notch !

Maybe do a small cross tube between the air intake tubes, kinda like an exhaust H balance pipe. It may or may not help them keep in sync, but it’ll make them both more stable too and look cool

yeah that metal plate on the fiberglass is really cool

24:26 Dude, that aluminum piece looks awesome! Nice work!

I love that the VW Beetle was SO ICONIC that we all know, at first glance, what it's modeled after, even though there isn't much of it left. Great build, I can actually sit through your time lapses. 😂 Keep up the great work!

Great job! I'm following this project with a lot of interest! One quick thing - if you're using a die grinder on aluminum, spray it lightly with WD40 as you go - it will make a HUGE difference in the cutting speed - I kept plugging up carbides with the aluminum until I tried it, and then it went so much easier!

And now we see if it runs... Story of my life! 😁✌️

Much love for this channel been a day 1 watcher much love Scotland much love and respect to you sir💯

This project is AWESOME!!!!!!!

I am an old 2 stroke guy. But had my share of 4 strokes also. All of them Supermoto 😁 And on SM bikes(dirt/enduro) the 4strokes run hotter then 2 strokes. They also have bigger radiators than the 2strokes. So you should be good on the radiator size. 👍

These vids are really cool to watch !

Yeah, the aluminum plates look awesome! Glsd to hear you are going to do something about the airbox, but now you need to get the hotair fron the exhaust away from the intake and or carbs. All that extra heat could boil the fuel, and or raise intake temps, etc... just take the bend out of the pipe so it is more straight out the back. Keep up the incredible builds, look forward to watching all the time. 👍👍

Awesome build dude. I love the artistic style and effort you put into all the parts. It looks so smooth and well fit! You just keep getting better, love the channel!

I love your builds. Just about everything about them. The best forms follow function & less time on aesthetics & more on ergonomics, simplicity & practicality & the builds would end up looking cooler too. Love it tho, thx for sharing

Chris I've been watching you for a few years now, and wow your welding & fabrication skills have hit a new level!! So looking forward to seeing this mini buggy finished. Great video work as well!! Awesome channel you've built Chris!!🤜🤛

I can't wait to see it running.. I can only work on vacations with mine so I am exited wirh your project..

I'm looking forward to seeing this thing.... I really hope it works good because I want to see it wheelie really badly. 😁👍

That oil tank is so huge it will seem like it isn't doing down, you'll forget to check it after 40 gas fill ups and you'll toast the motor lol.

Oh yes that stove pipe looks much better. For someone that worrys as much as you do about everything looking so good, you can make some fugley crap.

2 strokes get more fuel cooling then a four stroke engine (fuel in the crankcase) but realize cooling in the winter is almost limitless and snowmobiles will still run hot!

@user-qe5qs5vq9c

16 күн бұрын

With a 2 stroke at start up, you don't want to "cold seize" the engine. Without a thermostat just give the motor more time to warm up at idle. Then the piston and cylinder will expand at the same rate during the warm up period.

You rock Chris!

Hi always enjoy your videos however personally I would've gone with the 90 degree bend as the flow rate will be superior to the intake tube you made you also don't want the intake "closer" to the engine as you'll get heat soak which can be pretty detrimental to a two stroke engine.

It's a good thing that you decided to go with a liquid cooled snowmobile engine vs an air cooled engine. it gives you more options on what to do with the cooling system. in most cases snowmobiles don't use radiators. they use what are called heat exchangers. that are mounted under the tunnel and the running boards of the Snowmobile chassis. and require snow to be thrown on them by the track and off the skis. instead of ambient air being blown though them as is the case with a radiator. and also is the case with air cooled snowmobile engines. that have a fan that blows ambient air past fins on the cylinder assemblies. or as some people refer to them as jugs. the benefit of using liquid cooled snowmobile engines. are that you can use whatever size radiator that would be necessary to work in your particular ambient temperature conditions. and whatever fans and thermostats that are necessary to keep your cooling system in a safe temperature range. which is normally around 210°F, which I believe is a little hotter than I would like tor a two stroke engine. to achieve long engine life. but it's done to allow a more complete burn of the gas and oil mixture in the combustion chambers. which leads to less unburned oil in the exhaust system. because two strokes are inherently dirty engines. because they are forced to burn oil along with the fuel for lubrication. something that doesn't happen with four stroke engines. but two stroke engines are widely used in many applications for their small size and Horsepower to weight ratio. as for air cooled engines they will work in summertime ambient temperature conditions. but a person has to use ducting to capture as much of the ambient air as possible. and a person has to increase the oil and fuel mixture accordingly. however in triple digit temperatures it wouldn't be wise to lug the engine around at low speeds putting a heavy load on the engine. due to risk of burn down of a snowmobile engine. which makes liquid cooled snowmobile engines a better choice. because they are more adjustable to operate in higher temperatures. I was a snowmobile enthusiast for many years and had gotten to know sleds pretty well. and I believe these powerplants can be successfully used in a number of other applications. as long as a person does it right, which is something that I have seen you do before. by having the right size cooling system and monitoring the temperature well. you can't have too many temperature gauges something that I noticed you did on a previous project. I believe you will have no problems keeping this snowmobile engine operating in an optimal temperature range. I really loved my Yamaha snowmobiles and I would still be riding them if my body wasn't so thrashed. keep up the great work Chris.

You should put a Ring around the fuel filler cap

Waiting on video,excited to see this thing test drive🙏

Oh sweet! New episode of the Baja bug? Ez watch! Ty for upload!

I love it how every Sunday, your new video is always at the forefront of my feed. Good work

Awesome episode as usual ❤👀👌🏴󠁧󠁢󠁥󠁮󠁧󠁿

Just a few things: first, your welding has come a long way; second, don't let the trolls bother you, I think your designs and fabrication style is great and finally, I don't ever want to see you use a grinder like that again, you need to secure it in a vice or something. I got anxiety watching that lol be safe out there

Awe yeah!! Love this series

Holy crap, those aluminum guards completely saved me from being so upset about the body getting cut 😂😂 what a game changer, looks way better, good job!

Looking allsome buddy from cruzermans inventions 😁👍🦇🤠🦇

For the rivet, I cannot tell, because the video is going at high speed, but it works like a ratchet, and you have to reseat the tool back to the base of the rivet for each stroke or you will not get the rivet to break off properly. The teeth are at the base, but if you try to install the rivet in one big stroke, you will get a stem. I suggest doing short squeeze strokes and reseat the tool all the way to the base after each squeeze.

Possibly put some penny washers on the inside of the rivets, larger surface area for support. But looking nice, well done.

Chris it all looks great , i love the aluminum around the cut outs . Sharp

With the modifications to the air inlet and exhaust, you are probably going to need to do extensive trial and error in getting the carburetor jetting and needle settings correct for it to run right. So dont just immediately start changing things with the airbox and exhaust you made if it doesn't run great right out the gate. 2 strokes are finicky, but when the carbs are tuned properly they rip! You'll likely also need to make some changes to the clutch tuning to make them work properly with this setup as well.

As a rule of thumb (large simplification!), an engine splits the energy of the fuel in three almost equal parts: 1/3 for the shaft power, 1/3 gets dissipated by the cooling system and 1/3 goes out of the exhaust, so if you want a ballpark number for the power you need to dissipate with your cooling system at max engine load, you need to look at the max power the engine produces. So I would suggest looking at the engine power instead of the displacement to compare cooling systems. The thermal efficiency will be lower at part load, so a larger fraction of the fuel's energy will go towards the production of heat, but in absolute value this would likely not surpass the engine's max power value.

I put those tires on all my buggies. Best ever

My nose itched just watching this

That Is A BadAss Build Chris! I've Been watching for a few years now, and have seen Your Knowledge and Skills Improve in Every Aspect from Inception, to The Entire Fabrication, All The Way Through Completion! ALONE, While Filming and YouTubing The Process! I'M IMPRESSED!!! Excellent Work as Always Can't Wait for the First Ride, and The Next Project! ✌🏻

Another great video! Love your projects and the way you work. Can't wait to hear the thing fire up with that muffler. Hope you get on well with the neighbours.

looking good going to be a good machine looking forward to seeing it driving your skills keep getting better well done Chris

Take the muffler off, build a reduction and stinger pipe to go inside then slip the muffler back on and it would look mint.

Nice work 👍🏼💛 29:00

So sick can't wait to hear it finally run

I would add washers on the back side of the rivits so it spreads the pressure on the fiber glass

thats a beauty !

Looks good awesome man

I'd cut the fiberglass closer to the rivets on the exhaust side. Give the metal a little more area to dissipate the heat off the glass.

Just bought a Milwaukee rivet gun. It made my life so much better 😅 it take on those big stainless steel rivets like nothing. And no matter what angel im working on, the stud ends up in the little case.

I love the aluminum!! It looks sooooo coooool!!

Buggy got back!

Polaris R&D never thought of using a china 4 stroke muffler to reduce size and weight... but with that said, they were thinking longevity in engine hrs to pass warranty, and you dont ride your projects that much, so it may work out.. she thicc though... keep going!!

Fantastic build Chris, you may want to look at moving the air filter further away from the engine. All engines run better on cool air, with the intake right on top of the engine you're going to be drawing a lot of hot air in.

You really don’t want to feed your engine hot air and that air cleaner is right over the engine. Just my two cents. I love the look of this project. Keep killing it Chris.

@JR-Rollin

11 күн бұрын

Thats exactly what I was thinking. Bad enough that airbox is so small, now feed it some hot air. Heck the bowls might boil the fuel depending on where he rides with all the extra heat.

Thoroughly enjoying this build! Its like a mad max style and it really makes me want to build one!

Awesome project! Hundred percent awesome one thing I would like to add please Weld a nice exhaust bracket takes away from the hole neatness of your project The rubber bracket around the silencer is the only thing I would change just because it’s so ugly sorry you have everything it takes and definitely have an eye for beauty sometimes from the outside looking in you see what’s missing sometimes you have to step back from the painting like Picasso

You've made a lot of decisions to accommodate that fiberglass but it's clear you have the skills to fabricate with aluminum well enough that you probably could configure what you need mechanically first and design a body afterwards. Not that you'd want to at this point but for the sake of the radiator and so on. Anyway it was cool seeing how you formed those aluminum pieces!

I love the alloy trim around the exhaust chamber and clutch. Looks a little odd with the rear window line, wondering if worth extending the trim to follow window line to the other trim around the expansion chamber.. Should stiffen up the shell and also the more aluminium area of metal the better the dissipation of heat...

radiator sizing basically based on power output, efficiency of internal combustion engines is a known quantity (and therefore how much heat it makes is directly related to its power output). Sizing is usually also done with an implied forward speed to push air through, so that's why a lot of the motorcycle powered offroad things overheat so bad, because the motorcycles stock radiator size is based on it doing 100 mph+ if you use that much of the engines power for more than a few seconds. For offroad use, a radiator fan+shroud is basically 100% required. You could run it on thermostatic control to cover for the lack of engine thermostat, that'd work nicely.

I saw how you had issues with the rivets, I have a small suggestion for when you do the final riveting of those aluminium plates to the fibreglass body; use backing washers to lock the rivets down and the pins snap properly. It's something I adopted a while ago and from what I found, its the best way to rivet metal to glass, carbon fibre or plastic and give it a solid fixture without damaging the material. Also, you may find you need a little spacing between the metal plating on your body and the CVT cover or put a rubber trimmer/bushing between them or they may rub or rattle, it depends on how rigid the body is Other than those small notes, FANTASTIC work as always!

Harbor freight tools.they usually work pretty good but u get what u pay for on pop rivet guns..lol..making great progress on the Baja bug. Looks cool

@joeyhazlett

6 күн бұрын

Yeah, my rivet gun like that from HF is ridiculous. You need kung fu grip to make it pop the rivets cleanly.

I'd give the gas cap the riveted metal treatment too just to keep the theme.

Another way to do customs bends on one pipe is to cut a series of wedges out of the inside of the curve and get it as tights as you want. Looking good !!!

@musicauthority674

16 күн бұрын

It's called pie cutting, but it doesn't work as well when a person has to change angles of the bend. my guess is Chris probably already knows about this method of bending?

Love the 3 different angle grinders! lol

@iainburns4493

17 күн бұрын

Well what do you do?one grinder and many grinder cutter sander add ons?work smarter not harder buy 3 and don’t have to keep changing the disks to a sander or cut off wheel 🤷🏻‍♂️

@OmnieStar

17 күн бұрын

@@iainburns4493 wat? I said I love it.... tf is wrong with you lol

@iainburns4493

17 күн бұрын

@@OmnieStar are you a professional victim?i only asked well what do you do?why tf did a question put you on the back foot 🤣

@OmnieStar

17 күн бұрын

@@iainburns4493 again what? Because I literally commented that I loved his grinder set up, and then you attacked me asking me if I use 1 grinder with a bunch of add ons... So yeah I'm gonna go ahead and assume your just to dumb to understand that I was making a positive comment and you came in guns blazing to act like I was making fun of the grinder set up or something. And the only victim here is any other people who have to read what you wrote and my replies. Cause this shit is dumb. Next time, don't assume someone is trying to be condescending when they say they love something.

Put a backing plate on the fiberglass where you are riveting to so it’ll break the rivets.

Totally looks like a mini mad max car looks awesome

Love this guys work and yes I agree it needs twin air filters

❤❤❤❤ thank you Chris!

thx!! for not putting all results in the first shot!! now its interesting again😉

This is so cool!!! my mini split bus doesn't come near this lol

Congratulations on 650k! Great project and content, as always! 👍👍

This is so cool!!!

That thing is freaking awesome!

I just note that the engine is mounted on rubber ( flexible ) mounts, but the exhaust is mounted to the chassis without any allowance for movement.

@ratmanbrian

16 күн бұрын

​@@TUGG75 Good point.

Totally cool 😎

I think he should design something that can be easily manufactured for a consumer market & has desirable improvements in power~speed~design~features to what's already available out in the market,a motorised or electric powered bike~scooter~trike~go cart~buggy~skateboard that people can purchase,take advantage of his talented abilities to create a profitable business,use his channel & influence to grow a brand,even just selling merchandise hats~tee shirts~hoodies~mugs can be extremely very profitable

Super cool

That's lookin better...

Хорошо делаешь, нравится смотреть 👍 жаль с переводом нет

The problem with the rivets is pretty easily solvable. You just need to add a washer to the backside of the rivet so that it can properly compress.

I would give you everything I own. To have this buggy.

Look in to Clecos. They’ll hold the riveted pieces in place prior to painting it are removable without the work of drilling

Love your projects! Love the consistency of video uploads! Thank you!

Now I can't unsee it.... 😅

I think air intake should be x2 I really feel you will need it on top hills and such🎉