Flying The $3,000 AliExpress Paramotor!
Вставка
- Опубліковано 5 жов 2024
- Check out our merch! - tuckergott.com...
Purchase paramotor equipment here! - tuckergott.com...
My second channel - / @tuckergottuncut7180
Paramotor training. - aviatorppg.com...
Facebook - / tucker.gott
Instagram - / tuckergott
Training - aviatorppg.com
More AliExpress Paramotor Content!
Unboxing - ua-cam.com/video/eIQxxLlsz_A/v-deo.html
First Flight - ua-cam.com/video/-5YyOnsHuAE/v-deo.html
Fatal Flaws - ua-cam.com/video/jPJkU93kkNk/v-deo.html
50mph Bicycle - ua-cam.com/video/uplteP8vJbs/v-deo.html
Bicycle Launch - ua-cam.com/video/yLi1VKE3Btc/v-deo.html
First reply
Bro that motor is a AirJet DLE 170, the company has been around quite a long time, and it's on you for not doing the proper pre-flight checks of a brand new motor. Feels disingenuous as fuck to act like it isn't a wonderful little piece of kit. You're just too used to being sent perfect sponsor examples that were ran through for you with a fine toothed comb first; and you didn't do the responsible thing before using it.
Did Jeff dying make you reconsider your passion? I mean, what if it’s only a matter of time until your luck runs out doing this?
@@bumface1810 No. I don’t rely on luck.
I take it you are safer than Jeff, and that it’s a lot safer than say squirrel suits then? It looks like a hell of a thrill, but yea, not for me. But props for living to the max.
"The excitement of taking off in the AliExpress paramotor - is similar to what the Wright brothers must have felt on their first flight!" 🤣🤣🤣
I was just at their monument Saturday, super cool
LMAO
less than 60 seconds and with a, extreme 10 foot off the ground glide, really overloads the synapses that is how they had to have felt, lucky Fokkers
"This is awesome but I might die at any moment" 🤣
"I cant believe its working!" 😅
I admire this man's confidence in being able to pull out his bare phone to take a selfie that high up in the sky without dropping it
Fr I can't even bare to have my phone near the car window 😭😭😭
It is easier than you think. You dont actually drop your phone all the time, so if you only imagine youre not that high in the air, you wont drop it. Its all in your head
@@MineCRAFTsalalala you're probably right, but still 😵💫
@@MineCRAFTsalalalai do actually drop my phone all the time and i will drop it while i'm flying through the air, especially without a case to grip.
*hand sweat has entered the chat
The Muffler falling off is a Safety Feature, to remove the propeller and give the pilot time to contemplate his life choices.
It's an APU. (Automatic Propeller Upgrader)
Apart from falling apart I'm shocked it worked at all 😂😂😂😂😂
😂🤣😝
He's silly risking his life as a pilot myself
The motor jiggles so much...
I've brought a few chinese engined items and I've always found at first they strain and struggle and run rough until they've ran themselves in. They don't test run anything and are always stiff until they wear in. Pays to run them thru a few heat cycles and re torque everything and run a slightly over oiled fuel mix for the first week bit and then they free up and run well.
Hmm. Absolutely not Chinese, but there was a method to breaking in a V twin Harley Davidson motor.
@@captaintrips2980 yeah but then have a look at how they break in Japanese bikes.....theres videos on here of it. Fresh never started engine, start, warm up, then right to redline thru all the gears, shut it down and send it out. no break in really at all just thrashed right out the box before you even get it.
@@brotang2953 That's crazy. But, as an old former rider, I think you have to be crazy to ride one of those crotch rockets. Crazier than we were anyway. ☮
@@captaintrips2980because a Harley-Davidson type bike is sooo much safer right😂😂?
@@ClaytonBigsby01 a 700lb 60hp bike that does 80 is probably safer than a 400lb 200hp bike that does 200+ when tuned right🤷♂️
That lady was so sweet. "Do you need some help?" And the "Please be safe 🙏" my goodness bless her soul ❤️
I just love this guy's enthusiasm and positive ways...i love his holding onto the child and wonderment that is in us but we seem to loose....stay young and happy Tuck..i admire you very much...
Stay with this...its you 100 percent
I'm in RC planes. I completely coat the exhaust bolts in red RTV. For me it's the only thing that has worked.
Is this a consistent problem across RC engines?
@nigeladams8321 If you don't secure the exhaust bolts yes. These engines make alot of vibrations. I only have experience with 2 stroke planes. 70cc or 120cc mainly. In the beginning, while I was learning, I had them back out all the time.
a tuned muffler would definitely be better than a can with holes in it
There is something quite special about having something cheap and sketchy that works. It's... Endearing and terrifying. lol
It's not scary because you're not gonna fall out of the sky even if you're paraglider engine failed
I know nothing about paramotoring but I felt immense relief upon learning that's not the one you're giving away 😅
It's safe enough
Good man tucker👍
@@kitten-whisperer Safe enough for this professional, after having swapped out some parts and having it inspected by another professional lol. Seems scary if at the end of a random raffle, it went to a total beginner. I could be wrong though!
There is an exhaust kit for it to make it less loud and more powerful. Also swapping the prop is definitely helping out to get a smoother and more rpm overal
Do you have a link to the exhaust? I found one guy from Thailand that was making a sweet exhaust for these but I messaged him and they're no longer available.
@@TuckerGott will get it for you. One second
@@rinusheemskerktwo hours later.. 😊
@@rinusheemskerk He was never seen again
@@steveABCDEFG sorry for the delay
You could either use Nord washers for the exhaust, or just buy a jig to drill the bolts yourself for safety wire. For either case, I would recommend using heli-coil inserts on the motor if it doesn't have threaded inserts already, as they'll make a big difference in how well a bolt can retain torque in aluminum. The heat cycles and expansion rates between steel and aluminum are likely what's causing the initial loosening, while the vibrations are what make the bolts self-removing. It's also possible that the design needs more bolts than what it has, but you can't do a whole lot about that.
I came to recommend Nord Washers as well. Safety wire is a good thought, too!
Looks like a lot of fun! You should get pre-drilled bolts and use safety wire to prevent the muffler bolts from loosening
Absolutely nothing wrong with this kit. Flying as it was meant to be and just a couple of niggles to sort out and keep you mindful of the need to carry out checks before each flight. Kind of like the difference between an old motorcycle ridden with no safety gear and a modern fully kitted out touring motorcycle. They both get you there.
Use nordlock washers on the bolts. This is basically a perfect application for them. Very successful when we used them in 2 stroke chainsaw exhausts.
I was going to suggest Nord Lock washers and safety wire. If these bolts come loose the exhaust falls off and destroys the prop. Because of that I think safety wire is mandatory even if the Nord Lock is sufficient to resolve the issue.
My guy used BLUE loctite shown in his last video. No wonder it came apart once hot....
@@LeCafeRacer Red would be a lot better choice.
Tbh, just tack weld where the exhaust flange meets the heads on the engine would be the best solution
Haven’t seen you smile this much on a flight in forever…seems like this little fan put you back in touch with your happy place…you go, Peter Pan!
I love your excitement for this little machine
The amount of sheer excitement and joy this brought was super cool to watch.
This paramotor is the equivalent to a mid 90s Honda civic with a coffee can exhaust owned by a 17 year old high school kid bumping his mix tape on a blown out 10 inch Walmart sub installed in a homemade mdf speaker box. If you know you know.... lol
Underrated.
Done that!
he should add some stickers to the paramotor for more power
You get way more power with a honda civic. Alot of aftermarket parts you can get for a honda too. This, not so much
Ahh, good times man, good times.
I've been flying large gas twin cylinder motors on RC aircraft for almost 30 years and we NEVER use the gaskets on the exhaust. Either use nothing (which will work fine unless the flanges of the exhaust and mufflers are not machined well) or use a very thin layer of high temp sealant. If using the sealant, apply a thin layer to the muffler side and let it set (long enough to touch without it getting on your finger), and then mount the mufflers. Done.
Loctite doesn't work when it gets hot. Thats how you loosen it. I'd imagine the threads in the motor aren't thick enough (the hole was drilled too big before tapping). You could drill a small hole thru each bolt head, and safety wire them together.
I was going to suggest lock wire as well. I used to use it inside a 25mm gun when I was on board a ship. Designed to withstand a substantial amount of abuse with concussive force, definitely would hold up with the small amount of torque/ vibration that engine produces.
There's another PPG guy who bought one of those and he replaced the piston rings which improved the compression & power, and replaced the muffler & prop. Those changes gave it a few hundred more rpm's and enough power to launch. The muffler had a deep throaty sound and was a lot quieter than that silly gattling gun muffler.
I think the weight of your balls is what kept the climb rate so low haha 😂 This man risked it all to bring us entertainment. Deserves 10,000 likes for that
🤣
"Oh, my God! It's so sketchy!" 😂
These Ali videos are the best you’ve done in a long time dude. Keep making them on this thing I feel like it’s restored some excitement in you and your channel
I’m faded and read this as AI and started tripping out for a second 😂
Jeez, 20 meter wing? I've flown mine on an apco hybrid 22m and usually go for a 28m at 105kg all up 😂. Good on you for not give ng this thing away, its cool but super sketch to recommend to others.
Don't say I didn't warn you about those exhaust bolts either!
Ever heard of locktight? You should locktight every single nut and bolt there’s also nylock bolts, metal locking bolts, you have tons of options .
Thanks for posting this one I've been missing your videos you haven't been posting as many. I love your life. I'm in my 60s, my life is dreary, drudgery and I don't have a prayer of ever being able to afford to do this paramotoring but I love watching you do it and I live by proxy through you when I see your videos, pretending its me up there tooling around in the air like Orville Wright trying all sorts of neat things in the air like baking pizzas, going to McDonalds and flying a knock off from China. I can't get enough of them. Wish I could join you but I earn way too little these days to ever get into this sport but I sure enjoy pretending when I watch your videos. Thanks Tucker, don't grow up too fast, your life is perfect right now. I'd give anything for it.
BTW, you might try some loc tite on those bolts. Might help keep them in place.
All true ...never grow up tucker...always do this and keep the family of bros under your wing...they are your family...
Remember...don't grow old
Amen. Keep on keeping on!
Also I was a going to suggest loc tite as well but I know there may be some sustainability issues there if you need to take the exhaust on and off a lot.
To @chriswebertreesurgeon
Don't throw your living away yet my friend as long as time gives the ability of change ya know just look where you choose to spend your efforts when it's right the given will become effortless for it's all in the interest of where you give that grows and the interest is what you receive. Find your bond one of trust....
Change is the inevitable choices of all bring about the way. ✌🏼 Hope you have a bright day
Finding a way to safety wire those bolts seems like a must-do, also with that being a small flat twin you may see slightly better engine performance by finding someone who can help you Fab a two into one exhaust. That small twin could definitely benefit from some exhaust scavenging. Added bonus, it could be slightly less ear-splitting
On a two cycle ported engine there are more power gains to be had from a couple of well tuned expansion chambers. With a ported engine and a tuned exhaust the shockwave reflects backward towards the port which increases the cylinder pressure, effectively giving it a compression ratio increase.
I agree about the securing the fasteners. And I'm pretty sure if it was on my back I wouldn't mind trading a few newtons for decibels by hanging a muffler on it.
Those kids were very likely admiring you. Hoping to get one when they grow up.
To realize that the integrity of the harness depends on the quality of the stitching! Talk about life hanging by a thread
there are whole books on nylon stitching patterns and how many kilonewtons they are rated for
Definitely safety wire those suckers in. Only sure-fired way it will work
In a lot of situations where failure of a fastener can be catastrophic they do what’s known as “staking” the bolts. The basic premise is cut small relief cuts in the bolt head, then use a punch or other tool to force metal from the affixed part into the relief cut so it’s no longer able to rotate.
Exhaust bolts - use Loctite Red and Nordlock washers
It's always great to see you enjoying life and having fun👍🙂
You're a good man Tucker,
Best Wishes to you, for endless safe flights👍🙂
Just a word to you ... This is more than likely a scam ..... anyone who shows admiration to Tucker as you did ( and I did ) , the scammer comes in .. so ID say .. Dont answer this.. Tucker mentioned to us the scammers ...:)
@@gacj2010 Thanks👍
Who here is just glad that Tucker is alive to fly again!!! 🤚
Tucker, himself.
Did he almost die or something?
He is a happy guy ...All people should be like this
Phew!
the motor is a AirJet DLE170 they are reliable AF and tucker is full of shit. he did zero homework and ran his mouth. theyre a 15 year old german backed china clone company that makes high quality shit but he did ZERO pre flight maintenance checks. what do you expect. the bolts are loose on purpose so you can DO THE CHECK. lazy bastards too used to them coming pre inspected from paid sponsorships to do the work the manuals state. disingenuous as hell where i come from
The fact that these things normally cost more than $3000 is wild to me.
Really? I fly RC Jets that cost 8-12k...and we don't get to ride in them. So 3k for a human flight is dirt cheap!
Why? Have you looked into the engineering to make a motor as light as the Moster?
I bought a whole mini Jeep for only $2,600. How could this thing cost 3k?
@@LOSCABOSLIFEyou probably got ripped off
@@LOSCABOSLIFEelectric motor-a few hundred. Fiberglass, plastic or foam? What’s in your plane, gold?
Tucker, you are just the most ridiculous and riskiest person I know lol. Please do more videos on this because it’s entertaining and hilarious
It is so great that you tested this. Even with the slight modifications you made, it really isn't one that someone with no experience would want to start with. I can see that. Thanks for putting that thought to bed. You rock!
This was my fave video of yours to watch! Really captured your enjoyment and passion for this hobby... Been enjoying your hobby vicariously through your vids for years, but this gives me hope that I might actually afford to get into this one day.
I loved that icarus race. I've watched that series at least 3 times
Fasten a metal cable thru the muffler and a solid mount nearby to keep it from the prop if it comes loose.
Also , be careful with the carb settings , if you get more RPM's it may be running lean and will seize.
Looks like great fun , wish I was younger and not afraid of heights !! 😋
Turkey called.... and they want their Drone motor back.
"Deathtrap" was all i needed to hear. But the Ozone Roadrunner you mentioned did get my attention in constructing an alternative ground-lesson then machine. Eons ago i solo-flew a "ParaPlane" trike when this crazy business all started, and you've got me interested in getting back into it. Appreicate this vid.
Motors like that are known to be very hard to keep muffler bolts in because the gaskets are smashed by vibration and they do not rebound. The best solution is to get rid of the gasket and use Ultra Copper as a gasket, also clean the bolt threads and those in the motor with acetone. Then coat the bold threads with Ultra Copper and put it back together and let it sit for a couple of days. If you can safety wire that will work also.
Ding, Ding, Ding. We have a winner! I've been flying large gas twin cylinder motors on RC aircraft for almost 30 years and we NEVER use the gaskets on the exhaust. Either use nothing (which will work fine unless the flanges of the exhaust and mufflers are not machined well) or use use a very thin layer of high temp sealant. If using the sealant, apply to the muffler side and let it set (long enough to touch without it getting on your finger), and then mount the mufflers.
I think you should contact the seller to see whether or not they can fix it or tell you how to. Really impressed how courageous you are, it paid off and I'm really exited to get one asa i get enough training
Glad to see that you made it out okay and also happy to see flying videos again.
Do a pull test on the stock carabiners : )
On our rc gassers we leave out the gasket and just scuff up both surfaces and use high temp permatex. The gasket material tends to just blowout leaving the screws loose.
Also full strength red loctite is only achieved with ferrous metals, non ferrous aluminum needs Henkel Loctite SF 7649 activator to get it to reach full strength. Simple heat from a pencil flame or soldering iron loosens them up with ease.
Use Permatex Ultra copper on your muffler bolt threads. Lok tite will not hold after heating up. After applying ultra copper, run the engine to get it to temp, then retorque the bolts. Years and years of flying giant scale rc, I've never had muffler bolts come loose since using ultra copper. You can also upgrade to canister exhaust to quiet it down.
Over
I hope to experience how real it is too feel this living and freakin flying and free just once from grounded and dieing
Chosen?
I know the feeling! I've recently bought a very cheap Chinese telescope, and have been pimping it up to the level it performs as well if not better as scopes 4x to 5x the price! The feeling of using some cheap terrible stuff but still making it work is amazing!
Any plans on making paraglider merch, since you do/did paragliding from time to time?
how did you go about improving it?
Xoar makes excellent props for RC models for sure!
She had probably never seen a Parminder before and assumed you just invented this contraption
If the Safety Bolts holes can be drilled all the way through, you could put a lock nut on the other end and they will not come loose.
I have done that with other things that didn't work with lock tight fluid and replacing with lock nuts worked.
For the bolts you could either use locking tabs to stop the bolts from backing out or you could switch over to using studs and nylon lock nuts. Also if you find the green loctite that stuff is damn near impossible to get out
Nylock on exhaust melts.
Green is "permanent"
RED loctite needs heating to disassemble
To solve your exhaust bolts problem .. Craft 4 base plates, including drill holes, that match the cylinder heads and cut a 2"(?) long pipe x2 and weld a base plate on each end making 2 extensions. Now you have access to wire the now 8 bolts. You'll need 2 additional gaskets, resource for bolts, nuts, and washers. Size plates and pipes to fit application. A metal fabrication shop should be able to handle making the extensions.
Bought the shirt instantly without even finishing the video lmao
I want 1 too
Enoughs enoughs. I have been watching these videos for years. It’s time I try this out.
What an incredible hobby, & you seem so passionate! Would love to get into paramotors someday
To be completely honest, I'm really surprised you got this thing to fly at all. I thought we would see a crash/breakdown video, or we would just straight up never hear from you again 😅
Try some Stage 8 Locking Header Bolts for the exhaust fix. They have little metal fins that don’t allow the bolt to back out past a certain point. Easier than lock wire, and easily removable to retighten if necessary.
Plus they are made for race cars, so they are strong and don’t back out easily even without the fins. Worked for me on a Cors Air BD172cc that kept breaking out exhaust bolts
Sounds like you need exhaust studs instead of bolts. Hope that helps man!
For the lack of something to watch, I watched another paramotor pilot fly one of these little motors, but after an initial try, he abandoned the attempt and decided to modify the motor.
He stripped it down, changed the rings, had a tuned pipe exhaust made for it, upgraded other parts, fitted a more efficient prop and more.
After all these upgrades he checked the on ground performance..... He got another 1000 RPM, noise was almost halved, power was up by around 25% and it flew effortlessly.
Ali Express is usually very cheap. I'm surprised at that price. They overpriced it by about 2,500 bucks. Lol.
I have been using Loctite 620 high heat retaining compound on all my muffler bolts for years on my DLE's and it works wonders. I've used it in DLE 50, DlE 120, DA 100, DA 170 and DA 85 with 100% success.
OMG you know what DLE is uwu uwu yesss one smart person.. thats a DLE 170 and he didnt do any manual mandated checks then bitches about loose bolts. theyre loose on purpose so the pre first flight check is easier.
Hope it won't turn off during the flight in clouds 😶
That's actually the safest spot for it to shut off since you can just glide back down. That's not the issue. The safety issue would be it catching on fire or the propellor grenading or something.
Lol ikr? I don't think anyone's gonna attempt that with this thing.
@@Spladoinkal Fr
There’s a couple guys who made series of videos on this paramotor. They found an aftermarket exhaust system with muffler similar to a standard paramotor exhaust system that greatly reduces noise and gave it a little more thrust, they also found a better carbon fiber propeller that gave it considerably more thrust. It’s still a alliexpress paramotor for $3k so there’s only so much polishing you can do to the turd but I think those guys really made it as good as it can possibly get. Cool stuff though, entertaining as always. Safe landings bro and smooth skies my friend. I’m a free flight pilot so I normally don’t fly smooth skies, I look for instability in my forecast and usually launch around noon, a little different sport than PPG, but we all enjoy the sky.
Hamas goes Brrrrrrrrrrrrrrr
For the muffler user nord lock washers with the bolts then after you run the engine for 5 min or so to warm up, shut it off, then try re-tightening the bolts again since you'll probably get another 1/8 turn tighter with the engine warm.
Bro caused the current war as of October, 2023 🤦♂️😂 what the actual f***! This time-line is crazier than any!
Power adders- perhaps the addition of 2 'modded to fit' go-ped chambers or even have a couple fabbed(way better results potential) by someone that has the proper skills, would likely yield some SERIOUS power gains. There are tons of variables involved and you want to have a 'mirrored set' being it is a little twin. The short- exhaust/tuning is what makes the 2stroke so inviting and ideal for this and every app where power to weight is a big factor. With a decent pipe setup on this unit, I could see serious power increases being attainable. Drawbacks also are involved tho- reliability being the most important(this may be lessof an issue than I initially thought tho).
Well, you DID do it, you got the Ali-Express going, and exceeded all expectations I had, then even flew a smaller wing that performed well(given the circumstances) doing more than I'd have guessed possible! GREAT content Tucker, thanks for sharing!
I got a text from u saying i was chosen? Is this a scam ?
Absolutely. Giveaways have legal ramifications. The only contact you will get is a call from a reputavle law firm
Mad props for strapping yourself to this RC engine, I'm also super impressed it performed well (after lots of tuning). My un-professional guess is the exhaust could be fixed with a proper expansion chamber, hopefully removing some of the oscillations from non-uniform expansion waves. You'd also probably be able to get more power with it too, but that would probably put you at a higher risk of blowing the whole engine up... Do they even make expansion chambers for this type of motor? Can't wait for the next video!
Nothing says kill me like putting your life in the hands of AliExpress or Wish equipment.
Cool shirt, bought and paid for. Been following you for years and always wanted to get into this. Maybe this is my start. Fingers crossed. Love your channel Tucker.
I’ve been watching you for 8 years
The water pipe tut saved our life
Would this be the official aircraft of the Palestinian army?
It is, you and I thought the same thing but you commented first, in fact that's why they named it the Ali Express, everyone Israel thought Hamas was just taking up a new hobby. It was designed to go one way over a fence.
Yeah, they used them to get over the fence.
AWESOME video Tucker! A video like this is very encouraging. Your enthusiasm shines through. Keep up the videos on this Ali machine! Do you have an Ali link for the paramotor?
Let's not forget the stuff you had to fix. Don't give them too much credit.
Just the fact it actually got off the ground is something.
Something I always have on hand, I use it on anything that I don't want coming loose: "Loctite Thread Lock"
Also, on wheels or any part that you really don't want coming loose while doing 150 plus mph motorbike racers drill a narrow hole through the head of each the bolts and use wire to keep them from coming loose.
If there are bolts close together you can even wire them to each other as this will stop them from turning loose.
If you really want to be sure then I would consider doing both
Braze then bolts on. Exhaust will never come off. Ever. And because it’s a PoS, it won’t matter if you screw up the braze job.
Love your vids btw. I’ve always wanted to fly one of these machines ever since I discovered their existence when I was a kid. I eat up your vids and have learned a lot. Finances/budget permitting, I plan on picking up a new one next spring.
Tucker, you should send the carabiners to @HowNOT2 to break test them and get their strength ratings. Would be an awesome collab.
I just sent a set of Apco Air Extreme carribeaners and another set of new aluminum forged ones to Ryan for testing. Stay tuned!
I came looking for this comment! I hope it happens. Would be great for Ryan to start testing this sort of equipment more
Great video! You look like you're having so much fun!
Tucker: "What do you think, Rigger Tom?"
Tom: "THAT'S OUR WORD!!"
AliExpress paramotor:
When you want your tombstone to read "He died doing what he loved"
For the bolts i recommend Loctite, it's an adhesive specifically designed for bolts ,screws, and nuts.
Exhaust bolts on lawnmowers will give you a clue what to do I think. They use a piece of metal welded to the muffler and bent tabs up onto the bolt heads. Your bolt heads will need to be squared off on the sides, so grind them square if necessary.
This guy is so cute he was excited it worked and I was surprised.
Love it! You could see the child-like look on Tuckers face once he got up there, priceless!!
Thanks for the tips!!, me and my mates managed to break out from the world's largest prison with this cool toy.
bruh 🤣
Do you mean U.S.A. when you say "largest prison"? Did you escape the country with a paraglider?
17:41 when you started doing a running motion while already in the air. 🤣💀
Awesome stuff! It'd be cool if you could find/fabricate some tuned pipes and better mufflers for it.
I love watching your videos, you made me want to learn paramotor. As a pilot cost is the biggest factor, I’m not going to lie, I looked at the AliExpress paramotors but after watching this, and the last video, I’ll wait.
6:52 quite possibly the best ventriloquism I've ever seen, you literally cannot see his lips move! awesome!
I would try some Rocksett thread locker on those exhaust bolts to keep them from coming loose. It's designed for high heat. It's typically used for muzzle brakes on firearms.
Wheels down for that run way omg I was cracking up 😂 be safe out there 👍💯
If the bolts are backing out, they may be up to 1/4 inch too long. Shims, lock nuts, or another nut may solve the problem without harming the bolts. Two opposing drops of non-permanent loctite midway along the bolts may also help. It is important not to over torque the steel bolts in the soft aluminum block. Most importantly, the gas can't be on the same side as the batteries. The batteries should be ejectable midflight.
I would cut off the muffler and repupose the flange for a proper queit system. If needed you might be able to rethread the holes for larger bolts. You might also have to put baffles on the air intake because a lot of that noise might be coming from through the throttle body under load.
I can tell you know what you're doing, bigger/longer bolts, lock washers and saftey wire or a cap to lock them in place. You can probably make a cap out if a soda can and tab against a hex head bolt.
Easiest way to lock the exhaust bolts knowing you are still tinkering would be "locking tabs". you bend the tabs down onto the block then the other side up on the flats of the hex fastener. Easy to install/remove. Wiring would require you to drill the bolt and wire to the one/more of the other bolts. time consuming on and time consuming off. replacing with studs would be the long term fix.
This is the best invention ever!! People can finally fly like other birds and bugs...