30Hp 40Ft-Lbs Of Torque!!! Duromax 440cc Stage 4 Engine Build
ฝัง
- เผยแพร่เมื่อ 27 พ.ค. 2024
- Today we tear down and build a Duromax 440cc engine using parts from Go Power Sports. We install a billet rod, billet flywheel, .308 cam, 1.2 ratio rockers, 65lbs double valve springs, chromoly push rods, 34mm flatslide carb, milled and ported head and top plate. This engine is capable of making close to 30hp and 40ft-lbs. Don't forget to check out the links, subscribe, share and like to keep the videos coming!!!
Use 20% code RBG720 on ALL DuroMax products for July 2020 bit.ly/3894jRJ
Check us out on ROKU - bit.ly/30lHmaA
Merch & Events - bit.ly/33YbmtO
Parts
Duromax 440cc Engine - bit.ly/2X0FDG2
440cc Stage 2 Kit - bit.ly/34iuHpg
Top Plate - bit.ly/34aphg0
34mm Round Slide Kit - bit.ly/2PeTnL1
34mm Flat Slide Carb - amzn.to/34g5qvK
Intake Manifold - Coming Soon
Stainless Header - bit.ly/35gNC5g
Chromoly Push Rods - bit.ly/36tsskn
Ratio Rockers - Coming Soon
Head Work - lfrsmallengine@gmail.com
Tools
Valve Spring Compressor - amzn.to/2rwLqbg
Piston Ring Compressor - amzn.to/2YITNwr
Piston Ring Tool - amzn.to/2sp60tT
Valve Grinding Compound - amzn.to/34fNAt9
Feeler Gauges - amzn.to/35iUM9c
3/8” Torque Wrench - amzn.to/2RKP8bR
½” Torque Wrench - amzn.to/36pwLx2
Calipers - amzn.to/2LPlVbT
Bore Gauge - amzn.to/2YLKxb0
Ring Grinding Tool - amzn.to/2ROOvOr
Merch & Events - bit.ly/33YbmtO
Check Out Go Power Sports for all your Go kart needs!
bit.ly/2viX9vP
Parts & Tools used on the channel - amazon.com/shop/redbeardsgarage
Quantum Welding Table - bit.ly/2HVk8jl
Everlast Welder - bit.ly/2T0V0xK
DuroMax Generators, Pressure Washers, & Engines bit.ly/3894jRJ Use 20% code RBG720 for July 2020.
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Sweetwater, TN 37874
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Instrumentals by Chuki Beats - / chukibeats
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*********Disclaimer*********
Please do not try to re-enact or recreate anything you see in these videos. We are trained professionals. Red Beards Garage does not take any responsibility for injury's created by doing so.
#RBGKarts #RedBeardsGarage - บันเทิง
I've been watching your builds for a couple of years, this is by far the best tutorial you've cranked out yet. Enjoying watching your channel and content improve!
Fffffffffff
3 99
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How to order sir?
Mantap
The finishing touch for this engine should be an AMR300 supercharger, it'll take advantage of the ported head and bigger valves and really make that thing scream.
Oh its coming sir
Ya those amr's are bad ass blowers.
@@RedBeardsGarage hello sir, may I ask for instructions on modifying the gx460, I want to ask how to increase the speed when used in racing on water
wow, that was insane engine. imagine of to 8000 rpm. hope that philippines have like that engine for fishing boat
Thanks RedBeard... for taking the time, can't wait to see what you get into at the new shop.
I love how it shows the socket size, saved a lot of time 🙏🏻
This is definitely one of your best vids yet, can't believe you just happened to post a vid like this because I've always ran 212s but was recently thinking about doing a big block however wanted to know how much meaner they sound lone behold I stumble across this good work man keep it up
Sounds great, Sunday morning after a snow storm running it in a snow blower
I love going to even old videos to find parts it saves a big headache and clears up confusion
Another great build! I like the new intro; it gets right to the point. Information presented is in bullet format = excellent!
Great video. Thank you for taking the time to do this. One video suggestion I would like to see is a sub 4000rpm torque build. For guys who swap out old Tecumseh or Onan engines and still use there tractors around the house or for class limited 4000rpm pulling classes.
I am a firm believer in the DuroMax engines. I run them on everything. Very good engines straight from the box.
I put one in a golf cart and it was a beast!
Not as good as honda but for the price it's really good
I watched this video from beginning to end. I wish I had the tools to do this to and engine. You showed everything that you would need but I don't think I have the time to do this. Great job man. Love the work.
I can't watch these kinds of videos without wanting to do the same to my lawnmower 😂
@@clayton203 that this would drag you all over the place haha
Great video as always and the more i watch this stuff and whats available i see the same things as cars all these billet parts in cast bodies and what breaks when something goes wrong typically the block.
Keep up hard work so others like me can dream :)
Amazing tutorial I have never seen you do or anyone else do a better and more informative video GREAT JOB 👍🏼👍🏼👍🏼👍🏼👍🏼
Just found your channel and I must say Redbeard you are a great guy, thank you so much for the knowledge. Blessings.
This is one of my dream to buy engine like this already revolution😍😍😍 am from Philippines.
AA Your liker TV go for it then
I'm glad you put my mind at ease... in the beginning of the video it looked liked the table was "dancing" just a little 😁🤣. What did the Duro-Max start out as far as hp and ft/lbs torque??? 30 ponies and 40 ft. lbs.,... She's a little monster!!! Great build and video! God Bless and Keep'em Rollin!!!
Nice build! Looking forward to seeing the upgrades to this engine.
Great build and video RBG, fun to watch!
That engine will shake itself to bits in no time
Why, I've been running 2 big blocks without the balance shaft now for years, both turning around 7500 rpm's and I've not had any problems at all! The balance shaft was designed to smooth the engines idle and nothing much more! Hell some of my clone big blocks didn't come with balance shafts and one of my Honda GX270's didn't.
@buggylife7625 Not only removing the balance shaft but changing the rotating assembly weight. I build car engines and watching this makes me cringe. a $150 balance would save you blowing up $1k in parts here.
Love the vid as usual. Amazing build and I'm wondering how you have your 34mm jetted for the slow and main. Insane throttle response.
You make ordinary engine to be an extraordinary and powerful engine, awesome !!
Man! the ports on that engine are huge!
u should invent a 4 speed manual transmition for a small engine.
don't reinvent the wheel, just use a dirt bike engine. it's cheaper and more powerful than doing a build like this.
@mister clean shifter carts use motorcycle engines... its the same transmission
pit bike engines have those
Why not just use 3 wheeler setup, they use centripetal clutch and 4 or five speed gearbox some with hi/lo!
Y e s
Lmao I was literally thinking about a high spec duromax earlier today and here you are uploading about one
Hey Beard Dudes, your videos are looking like a TV show. I like it.
simple but perfect..
no mess with complicated wiring
thanks give me ideas
I love this channel from Thailand🇹🇭
Hi, what I like the most is how you prepare the plants I am about to prepare one as well as in the other fan noodles I'm crazy with that
I can’t wait to see this motor push 50 hp!
Man, really good engine build vid. Just makes you want to see that tweaked out unit ripping on a kart so bad!
i would use a stone to smooth the edges of the rings, they are hard and a file will hardly touch them. and use a micrometer not calipers.. love the channel keep it up
Did you think these setup work on the chinese versions? I had lot of those engines at my work
Nice Build Greg!
Nice thorough, well detailed explanation and assembly of the motor R.B.G can't wait to see what is does.
Ну наконец то мой культиватор начнёт нормально копать.
Алексей Таловин турбину поставь
Can you provide the link for the Ratio Rockers, please? I’m currently doing a very similar build on this same motor.
Watched 2 seconds and i already love it. Subbed
Greg, 04MAY21 just saw DuroTech YT add for the 18hp big block featuring footage from RBG, incuding your sweet mug! I started cheering as I saw it. Congrats!.
A little more too it then bending the governor spring. :)
How much can the stock internals handle, in terms of rpm
I was always told to put the opening of the wrist pin clip parallel to the stroke , on a high reving motor that will prevent clip from closing when the pistion changes direction , if the clip comes loose the wrist pin will walk out and destroy the cylinder wall
Wow nice build I was trying to look for a website like this to get some go kart fun. Will be taking notes.
I think keeping the balance shaft would have been a good idea. Probably any power loss would have been marginal.
It would have defiantly kept the vibrations down but would have made it rev slower. We are doing a billet stroker crank next and it is balanced so no more vibrations
Im not understanding what needs to be balanced since it is a single cylinder engine. Thoughts?
@@K_M_M_G balancing the crankshaft so that the rotational mass is zero'd out. That way he can eliminate the balance shaft. The Rod and piston stay the same since its a single cylinder.
when you consider the cost of the engine and all those fine looking parts and the labor I am wondering if it wouldn't have been better to get 3o hp Rotax or equivalent and have a better engine?
You can go to the scrap yard and snach 30hp rotax from a jetski and rebuild it
And it will still be only half the cost
How much is this to do I’m looking into getting a good engine on my bike and making it street legal
@@benbarkey8333 just get a cheap crotch rocket lol?
@@blackturbine do you know the name of those jetski's?
You make it look so easy ,dam your good love ya back
Sir new subscriber from the Philippines,I like the way you work,and I like an engine like that,😍😍😍😍
This you do best :-)
Why not add a 6.6L Duramax turbo diesel to a Go Kart? lol
I want a diesel one so bad 😂
If u want a diesel engine then go with Kohler diesel engines. Small diesel engines yu can add a turbo to
I enjoy your videos and everything you do.
Wow, impressive
Nice Job!
Im curious, why remove the ballance shaft? would drastically decrease vibration keeping it in.
I think it would be removed for the reason of the shaft being out of balance naturally it would shatter as well as may not clear connecting rod
It's removed to lower the rotational mass, anything driven by the crank will use the engines power to rotate, this obviously leads to slight power loss and less responsive throttle.
With changing the piston and rod you've changed the harmonics in the crank so the balances haft wouldn't be any good any more anyway
Yep, crank needs to be balanced after changing rotating weight and balance shaft removal.
As a fellow gearhead I totally understand building an engine.
This is totally cool. But why wouldn't you just buy a bigger engine. Wouldn't it be cheaper in the end? Or is it more of a weight saving thing...?
TACOMASRT5 probably weight and size. It’s the same power if a predator 720 but it’s so Much smaller
Why not just use a 450 mx bike engine. More power than this engine will ever make, lighter and has a full gearbox and clutch.
baron30001 thats a good question. Part of it may be wanting to actually do something yourself. But I know people have made shifter karts in the past and they are STUPID fast.
Kinda getting into a new hobby, biggest fan, trying to learn n meet yu guys. Ya the best. Got my coleman ct200u up to 55 mph
Thank you for supporting the channel! We have some meet ups this year. Try and come!
Amazing build😮
It's good for Philippine racing boat👍👏
50 hp? 😵
I would be scared to push for those numbers on that engine. How effective is the oiling system (or lack of) at those RPMs and that power?
I'd be more worried about the block. I'd start with a 10 bolt block from Vegas Cart or Bullfrog to put that much money in, turning those RPMs with that compression if I wanted it to last.
or he could stop wasting his time with these small kid engines, buy a 450cc dirt bike engine (which already make 54 hp) and mod that out and squeeze 64hp out of it
@@grizzz7960 wasting his time? He's sponsored, he makes a damn good living building these little "kid engines" look at his house, shop, tools, property, toys, etc.... and all that from building these kid engines, lol, who wouldn't.
@@theoldfartschannel3692 That is a 10 bolt block!
@@BubbaB43 Seriously? Wasn't aware DuroMax 440cc engines were 10 bolt blocks. Any beefier than a 420 Predator otherwise, that anyone has noticed?
Keep in mind both the Duromax and predator engines are identical besides that there made by different companies in China there both Honda clones, the spec's are slightly different,
So BUYER BEWARE,
QUESTION RB...
Why did you not reinstall the generator
It won't work or the flywheel is not compatible: racing motors on go karts needs Light's in the darkness when you're LIT 🤣😳😅
DuroMax is California... Not China.
Super super awesome job thanks for teaching that
Wow!!!! Great,Huge.Salute👍👍👍👍👍👍
You think your slick I saw the supercharger in the thumbnail
Imbalance and vibrations will destroy an engine. ~( ,m,)~
Duh
Thanks,that engine sounded real good.
That thing is sinister I would like it on a mini bike
That thing sounds badass
Your really trying to get me spend this damn money! Damn you Red Beard! 🤣
Great job, in Brazil de have a this Motors with 43hp, and reliability.
Fortex, for go karting.
I wish to have engine someday
Also boat for fishing
Nice to watch your great job sir
Nice build i haven't try but i believe to your build🤩
Damn , that sounds good.
Sounds mean! Awesome job!
That would be awesome on a mud skipper twister
It's a beast!
Excelente colega Barbaroja💪
I’ve bin watching you since the manifold build 5 years ago but then I got my I pad 1 one year ago so then I Joni you tube 8months ago
Men you look doing that, like a piece of cake. I wish some day I can deliver your talents. "Feliz Noche Buena" and Merry Christmas.
Weirdo
You just gained more subs. Thanks
Well had problem with Predator 670cc I installed in Yamaha golf cart, I will fix oil out of no. 1 cylinder. For now I have bought a Duromax 440cc not looking for speed so a mild build will do. I how ever will build a speed demon one with possible motor cycle engine or the V-Twin engine I will fix. Still a kid at 69 years young dam, LOL.
RED BEARD'S GARAGE ROCKS
Wow nice job
Wow you're so epic man. I'm saying even if I had the time and tools I still would never be able to do what you do .. it's truly be fun and so cool to watch..... Could you build me one I can pay ? Lol
Fun engine for 45km cars we have in netherlands
I love this enjin👍👍👍👍
Thats bad ass bro love it
I like to set pushrod length so at 1/2 valve travel rocker is parallel to head or valve cover surface .that way rocker angle stays as small as possible on both sides of travel
They should make a 4 valve head.
I scrub my blocks in hot soapy water - twice! Then oil the bearing and bore
Wow i need the same engine for my boat:)
Ive been fortunate to have been watching this channel for some time now. Finally a duromax build! I have a duromax 18hp on my 1975 wheelhorse trail mower.
Sadly, the engine was pretty smashed up out of the box. Fuel tank was crushed and the air filter housing was destroyed. Been hunting for a new air filter system because the factory accused us of damaging the motor so they wouldnt swap it or refund it.
However, i tried to locate these new components for light modifications and horsepower gains, but the site doesnt show ANY listings for duromax engines
Did you get that engine to work on your wheel horse ? We are putting an 18hp duromax on my 1970 raider 10. I'm looking for an exhaust header to make a custom stack work that I had made for it.
Regards from Brazil!
Great vid bud I would have had a few questions on the build. but not many channels reply to any questions. so didnt bother bud but love the vid and godbless .
We try to answer all we can
Now its time for a tuurbskyyyyy
I just love the videos bud
Nice the 2 step fire 🔥
Sweet video red beard! You've came a long way since I've started watching you. I wonna see you do a big cam build on a 212 or one of the new tillotson motors! I have yet to see a detailed video on this. Like what to expect on running into like piston to head and piston to valve clearances. a build with like a f275 292 or 310 cam with roller rockers would be awesome
We will do one this coming year sir
@@RedBeardsGarage cant wait its gonna Be epic!
Awesome tutorial for small engines! Thanks man!
Very nice video, thanks for sharing the video how to assemble Engine motor. i have also like that engine motor 8hp i'm using to the small boat..thanks and god bless bro..
Red beard you should do diesel rebuild
Awesome video
The hp isn't crazy but the Torque is! 5,5 kg-m is insane for this small engine
I need this for my go kart.
Nice video bro