71.3 HP off pure 2-stroke Power
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- Опубликовано: 9 июн 2019
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the 200cc twin havoc made 71.31 hp on the 4th run on the dyno , still allot to test and some horses to be found ... it was still using the old clutch and pulleys and was a little lean , next time 2fast pulley and new 3g clutch and some other tweaks to push it even further ...
Koven x ROY - About Me [NCS Release] == • Koven x ROY KNOX - Abo... 
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Thankgod people have not given up on 2 stroke yet. The power delivery and sound are orgasmic.
With powerful injectors you could have a "one stroke".
kedwa30
1 stroke?
@@kedwa30 nope, a one stroke engine is a rocket my friend
@@chrishaigh82 a 4 stroke has a power stroke once every 4 strokes. A two stroke has a power stroke every other stroke. It's theoretically possible to inject fuel and air and ignite it on every stroke. I mean look at how a ram jet works.
kedwa30 a two stroke ignites everytime it goes up a one stroke would mean it ignites when the piston is at the bottom and at the top it’s two stroke because it goes down once and up once for the cycle a four stroke goes down twice and up twice in a cycle
Holy Moly! Thats a really pissed chainsaw!
@@oooadhd2588 That was ment as funny comment , not a flame.
@@oooadhd2588 whats the problem with "pissed off chainsaw"?. Chainsaws are cool too you know
@@oooadhd2588 who hurt you?
@@903strikerunit yeah
@@oooadhd2588
168 people that cant get their 32-1 mix right watched this video......
Amsoil users ;-)
*190
i dont get it.
@@frigglebiscuit7484 the number dislikes
@@scottex. i know, but how is it hard to get a 32:1 mix right?
I got my Yamaha RZ 500 four cylinder 2 stroke pushing about 100 hp with major tuning and did 162 mph at the end of the Mario Andretti straight at Mosport Park in 1986. I'll never forget it! 🤓
Nice bikes bro, but the rd500/rz500 was severely under powered, I loved the early V4 design but the rg500 could make 145hp being a square 4 disk valve, but hats off to Yamaha I had the tz 250 kosinski replica, that handled so well compared to my nsr250 mc21 but power was still low, maybe Yamaha had a restriction thing going on back then?
@@tritiumrecords717 Hi, David. Your assertion about restrictions on output is valid. The biggest disadvantage my bikes had were their weight. I had a real challenge keeping up to the Gamas on the track, that's for sure. It's worthy to note that Yamaha made a Japanese exclusive RZ 500R with hand made aluminum frame and race spec E.C.M. with full advance curve past 10,000 R.P.M. My understanding is that less than two thousand of the Japanese R models were ever produced and are far superior to the Canadian or U.K. models.
Thank You so much for responding to my comment, I just love this stuff!!🤓
Hey Alex, wondering if you ever took pressure readings before and after in crankcase?
@@jamesbullock7257 hey james, I always found it to be futile because the pressure in a stroke motor varies with engine speed, throttle position, and where the port timing comes on the pipe, same as the head compression, just my thoughts bro..
@@jamesbullock7257 Hi, James. That's a very good question and the short answer is no, I didn't. I discovered those kinds of tests are done by highly trained people under extremely controlled circumstances, (way above my pay grade.) It wouldn't surprise me though that under those conditions, setting a base line before tuning; engine temp, r.p.m., ambient temp. of 68°F at sea level at 14.7 p.s.i. atmospheric air pressure that, at idle, crank case pressure would be lower because of the extra base gaskets I installed. Granted, that is a speculation on my part.
Alex G. 🤓
Now put another one side by side and make a 140 HP inline 4
No, make a 280hp v8
350hp per Liter it's alot. I love this engine
@@lazar2175 Look up the rudezon v8
Strap two side by side and run it on nitro...
1.0L V10 making ~350 hp? Would probably sound a bit like an older Formula 1 engine, just two-stroke
Love my two stroke they go from mild to holy shit in nothing flat.
I have a Cr85 and a blaster 200, my lil bro has a kx65 and a rm85c it’s a 2 stroke house hold, nothing better than being “oh okay it’s not that fast” to ur butthole holding on to the seat for dear life
My 4 stroke 6hp tecumseh takes a second to get to the peak power but then it rips (live axle, 20mph tire spins all the way up to 30mph and then rips until about 55) its on a go kart but it acts like it’s boosted it’s weird; (murray explorer, OHH60 Tecumseh, drilled jets, removed governor, high flow intake and exhaust, coke can head gasket with shaved head, ported and polished, big cam, live axle, race fuel.
Urban Pat you can make power of any small engine if you do it right
Is that the mustang in your picture?
@@urbanpat1714 imagine an 18hp tehcumseh, lol. My friend has one just not a vehicle or fuel tank
I could listen to this thing all day. Also it must smell fantastic in there.
the best smell on earth
Need this engine for the power wheels trike conversion I want to do, I bet it would be perfect for a drifter, you'd never hook up with the little tires!!
@@crimsonMX who, me? Think wrapping it around a tree would come first! 😂😂😂
@@andrewsavage1872 no, not you, the original commenter mentioned it would smell amazing.
@@crimsonMX ah, yea, he may die of poisoning, my idea would probably get me killed in a way that at least requires a snow shovel! 😂😂😂
Can we stick a seat on it....forget handle bars because il be dead before I hit top speed
that is nothing short of remarkable. . there seems to be zero delay from idle to full power it ramps so fast congratulation you worked so hard with very limited equipment but ingenuity and perseverance shown through .my hats off to you
This thing has more horsepower than typical civic
Topias Leppälä not quite
And the weight is about 70kg so 70kg fot 70hp
Hey!... I came here to say that....
Maybe in 1968...
@@SoI_Badguy but dont forget, a civic have more ccm so it makes sense
We are only in the beginning of tuning this.
A little little bit lean, but no worries, better to be safe, methanol don´t care so much if rich.
Ignition is only 12 degrees at top, should be around 15-16 atleast.
Then there are some cvt tuning left, but i actually think were are pretty damn close already, only adjust clutch to lock up a little bit higher up in rpm and it should be fine.
What % oil are you running?
@@lobmin either klotz or Shell advance racing m
@Karl Testar helst inte, tyvärr.
@@Patricks_Projects and how many %?
@@lobmin 4%
Nailed it! You got that shit perfect I will say makes me see the importance in life in maintaining the desire for two stroke still being reliable to go faster than 4 stroke
still a 4 stroke is much more reliable
I love that sound of the 2 stroke
Velocity stacks will prevent a lot if not all of the reversion out of the carbs, but i am not familiar with Lectrons and the effect stacks would have on them.
Comes on like a light switch, sounds amazing, good power per displacement... I need one of these in my dirt bike.
I think this kinda powwwwah whould turn your bike into a mini versions of one of those bucket wheel excavator things they use for mining lol
Awesome!
The power and the sound give me goosebumps. 🙂
Very nice set up.
The two stroke. A gift from the Gods. An evil gift.
Can’t wait to see this in action! Gonna be lit legit!!!!!🤙🤙
look up "joeyschaar bicylinder drag scooter" its a drag moped
Nika Kloosterman Just checked out! I love it! Going to subscribe fastest set up I have ever seen🤙🤙
@@bromleysmakeityourselfrc2853 yeah bro its not mine but that shit is super dope
Nika Kloosterman ya man! That hook up tho!
@@bromleysmakeityourselfrc2853 no problem G
I can imagine 5 great ideas to put that little monster in ....but I think my jaws would hurt every time I’d ride it from grinning so much !! ...nice build 👍🏼
Sickest 2-stroke scooter enige I've ever seen! Can't wait to see it ride.
You can search 4 zylinder tcr.. only 100 hp😂
Now image 4x havoc a 40hp= 160😅😂😂😂
I waited a lot for it!
Oh the sound of the 2 Stroke music to my ears
You're the first person I've ever seen that actually makes their engine smoke I always have my motor smoke if I don't see no smoke I had dump extra oil that bad boy should last forever
It's so CUTE when it's angry!!!
I'm gonna dream about this thing for a week straight 😭
Boys: thats gonna be a fast bike
Men: Hotsaw
Good to see someone Dyno a 2 stroke properly.
Der absolute Oberhammer! Good job! More than well done!
So for those watching, the expansion chamber exhausts (sounds like bumblebees) actually take the sound waves, and deflect them backwards into the cylinder while the piston port is open on the cylinder, compressing the mixture backwards into the cylinder, acting like a turbocharger. The expansion chambers are the reason why a 2 stroke engine has way more power than it should be able to have, because it's basically turbocharged.
The fuel mixture is sucked into the cylinder, into the expansion chamber, then pushed backwards by the sound waves, pressing the mixture backwards into the combustion chamber. The reed valves on the carburetor and the piston port on the cylinder try to stop the reversion of the gasoline and air mixture from blowing backwards, but you can see some of the fuel spray leaving the carburetors, as some of the sound waves are blowing the fuel mixture backwards out of the carburetors.
Note: There is a siphoning effect where the fuel and air mixture is drawn into the cylinder, past the cylinder and into the exhaust, but then some of it is pushed backwards back into the cylinder by the sound waves in the tuned pipes. The sound waves only produce this effect at certain RPM's, and that's why 2 strokes have a "power band" which depends on the engine design, and the size and length of the expansion chamber/s. If you destroy the expansion chamber exhaust you lose 30% or more of your power. Some small engines have 100% more power from a tuned pipe, that's how important it is. Adding a tuned pipe is like doubling your displacement.
I may have explained this wrong, but that's how I learned it ;) Such a cool engine in this video.
Thanks mate
thx for the explination , stay subscribed to the channel ... they will try to get even more power from the twin , and soon also a full cnc 125cc TCR engine video , and my bike will soon also be fixed so there will be more driving videos
2 strokes don't have a oil pump leaching off HP, they use oil mixed with the fuel and is sucked through the intake port that feeds the crankcase when the Piston is at TDC.
@@jeffreyMagnum460 have you ever heard of oil injection? Yamaha had it on their snowmobiles in like 1968. Hardly any smoke, mostly at cold idle. Bombardier/BRP Evinrude E Tec two cycle outboard engines are very clean running!
@@429thunderjet2 yes, but not very reliable on racing/high performance modified engine. Pre-mixed is what all racing two stroke guys do, much easier to change mix ratio to match the ambient temperature/humidity.
Oh, my Engine is Ready😬👍🏼👍🏼
Is this yours?
Why dont build it by your self
No☹️😂
I could listen to that idle for hours
Music to my ears!!
Just added to my playlist...
hehe 😜 the sound off 2 stroke
Being out of dragracing with scooters for +/-8 years or so, I have to admit... I still mis it sometimes. :D
Lowered Zip SP with wheeliebar, single un-tuned 2f4r 80cc with Nos (NX). 30-35 HP. One of the first handful of people here in the Netherlands, installing Nos on a scooter. Good old days.
I can only imagine how awesome 70+HP must be. Nice work!
Try some velocity stacks on those carbs, lots of blowback.
I was noticed that. I was wondering what would fix that
I'm sure they'd have tried that in the journey to 71hp..
@@snowyseb Doubtful, the wave inversion at the intake is not a desirable condition.
@@zangzang1268 These guys haven't touched the extremes of two smoke tech. At the extreme, the carbs are no longer used. they are just for getting it started. Injecting nitro directly into the crankcase, and using two-piece pistons to allow for wrap-around porting to save the rings, the pulses of the expansion chamber and the port over-lap, make the thing shriek at 20,000 RPMs. My record-breaking 250 Suzuki at Bonneville in 1969 was actually "free porting". I had torched so many top ends that we were running Weisco pistons in cylinders with 50mm wider intake ports. With no reed valves, that meant that I had to spin the engine to 6k to make it run, then it would make HP at 8k, and redline at 10k. I went 121.621 with 10% wheelspin.
I'd recommend switching up the reed valves before adding stacks to hel with the blow back.
すげーいい音すぎる！
ニオイまで伝わってくるサウンドってまさにコレ！！
The wheelies I could do with this engine in my NRG OMG 😳 buying a 210 cc 2 stroke for my gilera /NRG this year can’t wait
Look at the stand off on those carbs!
Yessssssss!!!!!
Was lookin for reversion type comments
Bill Rimmer its not carb its Throttle Body ,
1 hari yang lalu Did you understand the point I was making? I’m sorry I so disappointed u in my failed description. Do u have anything else I need to work on. Thank u for your candid observations!
@@baakbuktisetor6251 if that's so where's the injectors? Stevie wonder could tell you there carbs
@@behemothfan666ftp4 FYI ***They're*** Carburetors
Damn thats a cc to power ratio most top peformance turbo cars never reach! Great work!
A 2 litre civic can easily push 700hp btw check out the boosted Boiz an their civics and stuff
yeah but what makes it even more impressive is two strokes making this power naturally aspirated
same kind of hp per litre is physically impossible in a naturally aspirated 4 stroke
aditionally, this is 360 hp per litre wich is pretty far from some two strokes that can reach over 400hp per litre. some 50cc can reach 500hp per litre.
@@tejdz1337 im also a 2 stroke fan but a two stroke is nothing without a exhaust and a 4 stroke without a turbo or blower or somthing like that
Wow that’s fast.I love how 2 stroke engines sound.👍
really?
things sound like bloody lawnmowers lol
As a 15 year old lawnmower mechanic, I witnessed the evolution of the two stroke as it was applied to the go cart, in particular, the McCullough chainsaw engine, with the transition from open exhaust stack with the fire visible in the ports, to the use of the tuned expansion chamber, the use of three carburetors at different points in the induction circuit, “pancake” flywheels able to resist the very high rpm, chrome plated crank shaft and connecting rod all contributors to the highest power to weight ratio at that time. I believe this technology was a result of outboard engine technology.
Lol you sure know a lot about 2 stroke for a "15 year old"
71hp wow good job 👍
That's a hungry little bee 🤟💀
CAZZO CHE SPETTACOLO!!!!
UNA BESTIA!!!! Grandissimo lavoro, bello bello!!!!
Any of us old timers who rode snowmobiles or dirt bikes before they went 4 stroke know just how awesome ring dings are. I had a Ski Doo 800cc triple that would scare you straight, around 185hp stock and much more easily available. My Honda CR500 was called the widowmaker for good reason, 500cc of single cylinder 2 stroke nastiness.
Madness really nice build :D:D:D
Getting 70 BHP from 200 cc seems pretty good for your first trials. I did a lot of dyno work on Yamaha TZ250 motors in the 1976-1979 years and was getting about 65 BHP. I like your pipes, as they seem to have a large diameter which is good for torque, but not so good for cornering clearance on a motorcycle. Pay attention to your coolant temperature. Yamaha published data on power and coolant temperature , finding that 80 degrees C was best for them. You must keep the temperature the same for all dyno runs or you will not be able to accurately compare power results. Good luck to you in your work.
Doesnt look like that slick is guna be cornering any time soon and 70hp is pretty ok for a twin 200 concidering that a kx 125 makes 35 hp and the kx 100s arnt to far off from that so a twin 200 with 70hp isnt crazy, if it was a single cylinder it would be crazy but its a twin, each cylinder helps the other one out its always guna make more power than a single
You are my hero! I've wasted many of hours at work daydreaming about a TZ750.
We used to run CR250s Hondas on our Micro Sprints in the 90s before 600s 4 strokes took off.
Methanol and Clotz are magical scent! 😎👍
Ok but i think for his engine 80°c is a bit to much...
I think he needs to run with 60-70 degrees.
On my evo 70cc its about 63 in every weather and its more sprint setup that i drive on track😅
It is good to find the best for your motor. Temperature is important to control. I did some testing on this when I was an engineer with Johnson and Evinrude outboard motors. More heat always reduced power.@@marcebel3643
Thx for the tips , there is a very nice part from malossi , called the heatmaster wich works by regulating the flow electronically in the water pump to keep a constant temp
Seriously crispy sounding!!! I wanna ride it!!!
Looks like it's gona be a cool mini bike!
Hate to tell you this but bees have made a nest on your exhaust
And theyre pissed off
That's as much HP as my sedan :o
Same my car has 75hp😂 Seat Ibiza 1.6 8v 2001
yeah but your sedan is not 200cc
@Nero i drive more my bike got a gsx 600f 85hp for the bad weather and a kawasaki z1000 175hp for the summer🤘
@Nero Originally 100 hp, 23 years later and too many miles to count, shes sitting around the 71 hp mark
@@vasiliansotirov6976 yeah but his sedan is 100x times more reliable and fuel efficient. But yes the 2 stroke is a lot more fun
Look at those carbs when the engine is on full load, amazing haha
Man that mudder sounds crisp!
Lectron fuel systems looks great
i need this in my life, i now have a chubby
jason stalder LEGEND!!!
Pure music! Brilliant
Man I love that sound
I need a 500cc version for my bobber. Hahaha
I wanna see it rollin' on 'd street.
Love 2stroke sound.....FUKN AWESOME
Those lectrons were working hard. Good pipe dims for acceleration; mid-torque to a peaky top end. You gotta be a real two-stroke junkie to watch this.
355 HP per liter...amazing
Next time we want to see 80😜
that thing is BRAPPINN!
Gotta love that sound
i need a dyno chassis like this. how is the front secured
The pulsing in the expansion chambers is actually supercharging the engine. Would b nice to put a pressure transducer in the crankcase to measure the pressure. But the positive pressure is what is causing the stand off. Really cool vid. Too bad all the big r/d went to four stroke motorcycles. We would have clean light and super quick bikes by now. And with cats. I love cats. Look at all the 600 plus machines that r smog legal.
It's scavenging and inertial ram charging
In some cases a longer velocity stack will help
Bring them all back this is how real bikes where made
Excellant work. This turns into ~180hp for an old Gp500 bike😍
@arborcidal maniac These were the numbers they had at the end of the 2-strokes, yes. But I am not sure if they told this only to have a nice number. I think they were only close to 200hp.
Like a banshee but 150ccs smaller and pushes the same if not more HP....Id put that bitch in a chainsaw 😂...Wide open all day just to hear that beautiful sound
Cr500 makes 50 or 60ish to the tire. 71 hp is crazy
Imagine having to stop at the gas station every 10 minutes
More like every 5
Lectron carbs has powerjet, so despite the look of it, the fuel consumption is not as bad as some other non powerjet carbs
its meausured in smiles per gallon
@@zipstunter best F-ing return comment ever!!
That’s the craziest unicycle I’ve ever seen
Now there's what we need.
The worlds fastest unicycle
Excelente 🇩🇴🇩🇴🇩🇴🌎
Nothing sounds much better than a two stroke singing on the pipe.
Gotta love 2stroke power
hehe i would not want that , my passion is 2stroke
That's just mad!!!!!!
Back in the day the TZ750 Yamaha used to make about 140 -160bhp, multiply your figures for 750cc and you're looking at a bit under 200!!!
horsepower did not work that way
So by a bit under 200 you mean “about 140-160bhp”?
Someone is gonna die when that monster is put to a scooter xD
Sounds lovely...
A two stroke unicycle of death right here folks.
Mamma che bestia
Gonna need a pilot's license to drive whatever this is going into.
Fantasizing about all the toys it could be put in !!😁... wheeeeee
meanest 2 stroke I have ever heard!
I think you have to build scooter with this engine ;D
The engine fits un every piaggio 50cc scooter😂
And with custom frame you can put in into everything😆
Bad ass, that motor needs to be on a zip.
that zip will fly to the moon
@@neguhnigeruh9885 that's the plan. Lol
Wow 71hp. Maniac.
Man she runs like a champ thats gonna kick ass in a dirtbike
Hot damn 71hp 200cc , that's 355hp per liter . Which is insane
one the single cilinder 100cc roost havoc engines multiple people have already hit 42 hp 😉 two strokes rule 🔥💨💨
My 1.3 samurai cant even do 70
@@zipstunter that's crazy .
Nsr500 hit 400hp/liter, so there is room to upgrade👌
@@nurfaikhamhaiqal2528 yeah I knew that . It's still a lot of power .
Bei Vollgas bestimmt 5 Liter die Minute, was das ding verbraucht.
TheApleCake Das ist das erste was ich gedacht habe 😂😂😅
In der Minute hat Dich das Ding aber auch schon zum Mond katapultiert. Geht in Ordnung sag ich mal. :D
@@MegaSockenschuss zum Mond oder ins Grab 😅
Music to my ears
The combination of cvt transmission and 2 stroke power band is absolutely nuts, unless you've rode a fast sled then you have no idea lmao
..& its just 200cc ? WTF !!
😎👍☘
My 110cc underbone motorcycle is a two stroke with 13 to 14 hp, stock.
@@calvinnyala9580 my 125z underbone make staggering 26hp on wheel
Edit : *stock*
Imagine this on a alldays scooter 😂😂😂
Reynax then you can go to the gas pump every couple of miles😂💵
@@lucasrosier9516 😂
Nah just put a wheel on front and go...go like the dickens😝
Nice profile picture
O que falar disso , sem muito comentário , apenas um monstrinho show , parabéns!
Thiers a similar twin 125cc engined gilera dna on RUclips somewhere sounds awesome love the sound the twins make
71hp in 200cc 2-Stroke wow that's a lot of horses.. Even 125cc 2-stroke not possible to pull over 50hp..but how about fuel consumption? Its drink fuel like a jet engine?
Yes it has great power but this one burns methanol. I have here an old Race Engine Technology magazine March/April 2010. There is 125 cc 2-stroke road racing motor from CRP based on Honda RS125R. It is naturally aspirated, uses 102 RON unleaded gasoline and produces 53.58 PS (50.1 bhp) @ 12942 rpm measured from the front sprocket not the rear wheel. Top speed on Mugello’s longest straight 242 km/h!!! Without methanol...
most 250 jap bikes only make 50..... 125 maybe 35
whats with all the fuel air blowing out the carbs? super rich or somthing up with the reeds?
It's probably too rich, as you can see there is a shit load of oil burning out of the exhaust (blue smoke). So they are most likely using crappy cheap house-brand engine oil, and having to mix alot of it. Therefore having to get a richer mixture. If only they used proper 2stroke oil, so they can lean the mixture and get probably more power...
@@wildwilco wow thats nuts, even a child knows that chainsaw/weedeater garbage oil is no gooda for any watercooled 2 stroke. let alone somthing like that. what asshats.
@@wildwilco bahhaha they say its running lean in the discription. they should stick to playing with dolls.
@@jacobpoucher well I can imagine, they mix in so much oil that the main jet is too small. That's why it's running lean.
@@wildwilco 32:1 not too bad but 20:1 getting there........
long live 2 stroke engines
My new ringtone