It's not saying much for this engine... 4x500cc 2 strokes only putting out 200BHP??? Should be more around 300-320bhp... I hope they're in dev of an exhaust system...
100bhp per litre is not uncommon for a 2-stroke engine. It should be able to reliably make 150-200hp per litre, but since this is going into an aircraft it is important to put the least amount of stress as possible on the mechanical components of the engine while running full rpm all day long.
this engine was built for an aircraft. it has an insane torque curve. the hp is not high because it must be reliable(aircraft). if you wanted it to have a power curve like a snowmobile it would easily make double the hp.
Thats it? My buddies shop built a 1000 cc gixxer track bike that puts out over 200 bhp, and that's with a flat-lined ecu map-they screwed up and lost the mapping, lol!
200 bhp seems a little on the low side. it's much lower than the potential for that cylinder config. if they had brains and a few expansion chambers, and maybe a turbo or two, they'd reach the 400 bhp mark with ease. hell, there's an inline 3 cylinder based off of cr500's, albeit with a turbo and nitrous, but it reaches nearly 600 hp at the wheels! surely 2000cc can do better than that.
Why are the exhaust ports not facing the other way? The plumbing would be so much easier for most applications that way, for example if you wanted to fit it in a car or a bike.
200 horse from 2000 ccs is crap. I have a 151 (2500cc) Pontiac Iron Duke that makes 275 HP and I know of full race versions that do 350 Hp easy. As far as that goes there was a V4 midget race motor that was a small block Chevy that was basically the outer 4 cylinders with the center four removed. All the SBC hot race parts fit. Word of 375 horse from 2500cc's were common.
@jacktheripped well that's a commpletely bespoke block, and is not a small or big block in terms of design, also, no aftermarket parts designed for a small block chevy would fit, so that would be a completely different engine....
@dexxy45 ...injected 410 small blocks in sprint(not Sprint Cup) cars, ALL parts interchange with SBC and easily over 800 HP. There are many examples of people getting 2 hp per cubic inch
I'm just saying for all the work done to that motor they are not getting the results they are paying for
for engineers, they sure seem clueless on how important a tuned expansion chamber is for a two stroke?? I say, drop the turbos and try a run with the stock pipe set up.. cr500 get close to 55hp, so this set up should pull closer to 220..
its not the point of making heaps of power out of it, its an engineering feat and its awesome!! sure it might make more power with tuned pipes and all the rest but you gotta make sure the bastard is running right before you go tuning it to the edge, in my eyes its a mad feat and would love to see it a year or so down the track!
An expansion chamber is a form of forced induction. Forced induction is when extra air is forced into the cylinder for more power, which is exactly what the expansion chamber does- at a certain RPM range anyways. Two strokes need low end torque to get up to speed quicker. That's why most people tune them for low end power
200hp for 2000cc seems a very minimal ammount, in the 80s the 500cc Moto GP bikes were nearly 180hp, seem road 500s modernised engines making over 200
The Exhaust is RETARDED!! your having the shockwaves being forced back into the cylinder thats why it runs like crap.. its kinda like a 4 way in traffic and all lights are green, individual pipes wouldve been optimal.
reading a few of the hater comments i agree on the exhaust and yes there is a lot of waisted performance but come on you jerks cant you see the effort and engineering which went into this project? never mind expense and time give them a break
@GT03235 There is no point in the effort though if you don't do something better. Why would you want a 2000cc V4 that makes only 200bhp? You could buy an 1100cc I3 that makes 280bhp or a 2000cc I4 making 450hp from Two Stroke Shop.
The size, weight, power ratios for this are pretty bad(for a 2-stroke), so the "effort and engineering" was worth nothing.
dont listen to all the experts. i would like to see it in a bike frame,it might be 200bhp on a dyno,but convert that into chuckle value when you open the throttle to the stoppers. something else!! like the way you can see it wanting to get off the mountings when its rev ved. aaaaaaaaaaaaaaaagggggggghhhhhhhh
Wow... That was uninspiring... The GP500 bikes were making near or more then 200hp with 500cc V4's... You can get a 1000cc twin easily over 200hp in a snowmobile now. Why did they make a 4 into 1 exhaust is baffling, and with no expansion chamber... I can't think of a word. They could of tried to put the stock CR500 pipes on all 4 engines and probably hit near 300hp or more.
I love that sound 2 strokes make when they rev down. But like others have said, this is not that much power for a 2000cc 2 stroke. The new ZX-10R makes 196 hp, at the crank I assume, or 206hp at high speed with the ram air helping out. That's a mass production 1000cc 4 stroke. With reasonably long maintenance intervals.
Nice, but the exaust is very bad designed for a two strokes engine! you lost over 40% of the theorical global efficiency just because you can't have the return of the shock wave into the cynlinders! The Exaust must be seperated!
@ArticKiter not only do they need to be separate they need expansion chambers as well. that is what allows the shockwave to return so efficiently and gives you the power
For what they wan't it for, there isn't near enough room for 4 expansion chambers, though even if they just had one for the 4 cylinders it would be better than none.
The exhaust is goofy because they intend on turboing it. I can't believe all the comments that have accrued over the course of 2 years without anyone seeing that.
@alpha434 Well, turbo on a 2 stroke doesn't work all that well unless you're talking about massive displacement such as the diesel two strokes they use in ships where you have to fill a room-sized cylinder with a teaspoon of fuel oil. With both exhaust and intake ports open at the same time, you blow your fresh charge right out the exhaust. Very much not efficient. They also don't have it written in the description that it's going to be force fed.
That's not true at all. Turbo or supercharging a two stroke eliminates almost all of the timing issues with a two stroke... And in cases where it's not "efficient", do you actually think these guys care? At all? You gave up on fuel efficiency when you start working on two strokes in the first place.
And your final comment... Because they didn't say it was going to be force fed in the description.... They also didn't say that it wasn't.... Do you choose pessimism or optimism?
@gymkhanadog I can assure you, at 90% load (what marine engines run at 99% of the time), there's about a thousand times more fuel than 'a teaspoon' injected into the cylinder.
u never know if the length of each pipe is correct it may have a similar effect just using pulses of adjacent cylinders, I have seen it on 2 stroke diesels namely crossley hstv8, that only revved to 650rpm and had cylinders about 12" diametre. it had 2 manifolds, one per bank, it was called pressure pulse supercharging.
btw the engine in video was for a hover fan jet pack thingy.
@ArticKiter not sure if i am arguing the same point or not but should 4 cylinders of 2-stroke power have alot more than 200 horses? cc for cc 2 vs 4 is 2:1 equivalent in favor of 2-stroke? a 2.0 liter 4-cycle 4 cylinder motor can reach 150 horses, no? shouldn't a 2.0 L2-cycle produce the equivalent of a 3.6 L 4-stroke motor (6 cylinder power range). i use the theory for dirtbikes as reference as 250 2-stroke and 450 4-stroke are supposed equals...
@MrMixedGas The important in the expansion pipe is the length of the belly section determines the relative timing between the negative and positive waves. The timing of the waves is determined by the length of the straight pipe. If the belly section is too short, positive waves have a shorter distance to travel, and return to the exhaust port sooner. This is good if the engine is running at a higher speed, bad if you want to ride on the street.
I think your knowledgeable correspondent who has met God is speaking only of highly developed, highly tuned and high maintenance racing machines. BHP claims are deceptive as there are different ways of calculating it. In 1963, dad bought a new Auto Union car, 3-cyl 2-stroke, 1200cc rated at 60BHP. That car could lick the arse off 6-cyl cars of twice the capacity, rated at 80BHP, but, given a long steep hill, the tables turned due to different torque ratings of the 4-strokes. Very good vid clip!.
if all you're getting out of a 2 stroke 2000cc, is 200 bhp, then you are severely underpowered.... man there are loads of 2 stroke bikes under 150cc which can make about 40bhp....
eg. Honda RS 125cc.... it makes 39bhp ...140mph
eg. Honda NSR 500cc..... makes 200bhp...200mph
2 strokes make about 2 to 4 times the power of a 4 stroke, when comparing displacements. so why does your 2 litre perform like a meagre 500cc 2 stroke?
That is one awesome engine, great job. I love my CR 5-hundo, it;s fun to think about the possibilities of a 4 cylinder CR2000. Any plans for what you are going to put it in? I have to agree with the other posts though, it looks like you are leaving a lot on the table with that exhaust. However it would take numerous hours of R&D to make a good pipe. Send me a message if you are interested in someone to make some custom pipes for you, I know someone with experience in making cr500 pipes.
all the engineering to put 4 cr500s together, and a 4 into 1 tubular exhaust (no expansion chamber?)????? it should have 4 expansion chambers......this doesn't add up.....
that sound actually got me a bit emotional. fast two stroke sound like a jar of very pissed off wasps. this sounds like a jar of very pissed of wasps who had nitroglycirine for breakfast
So many people getting stuck on power figures and so few are impressed by the engineering behind this :( Impressive machine! I would sure like to know how high it revved. Is the dyno-chart online somewhere or does someone know? Pretty expensive pistons, con-rods and a very well made crank obviously.
@KMan750 the engineering isn't impressive when a modded 500 is making 100hp.... they have four of them and can't double that?.... that ''thing'' should be cranking out 400 horses easy.
Great vid but seriously let's see some fmf gnarly pipes on that or a costume cone pipe and it would be realy cool it you did a hilborn type of injection with boost bottles and one question how do you get the fuel injection system to mix a/f properly pre tune or o2 sensor maybe?
@ annadogg do some research befor you open your mouth the 2 stroke makes power every time the piston comes up while the 4 stroke makes it every other time the only reason 4 strokes are a little more power now is due to millions of r&d put in them do that to any motor and it'll pump out hp look at f1 they have small engines like 2l and make 1100hp at 20,000 rpm. a crf450 can't touch a cr500 in a drag 56hp is close too 450s power while cr500 (490cc) makes 62-68hp and capable of 100hp let's see a
esse motor com preparação similar as motos de cross cr,yz kx,etc... mais o power jet !!!chega facil nos 600hp!!!!e quanto sera que esse motor vira de rotação final?num carrinho pequeno deve virar um foguete!!!kkkk
Put some expansion chambers in it and double the power.
sellyoursoul90 2 days ago
It's not saying much for this engine... 4x500cc 2 strokes only putting out 200BHP??? Should be more around 300-320bhp... I hope they're in dev of an exhaust system...
B0DYR0T 1 week ago
there is no way that those pipes are helping their performance. there is no resonation?
69SENTRA 2 weeks ago 3
Soooooo this is the motor right before you buy the warp drive kit. :D too awesome.
orphanmonkey1 3 weeks ago
i think i just came....
couvidan 1 month ago
put it in something!!
starscreamsbitch 1 month ago
why not just use the power head off a boat? 325hp 2 stroke v6 anyone?
johns78c 1 month ago
@johns78c yea man i always imagine putting ones of those in quad I'm going to built it for sure in the future
Greenboyjhony93 3 weeks ago
@johns78c It would overheat and blow up from lack of cooling
ironDsteele 6 days ago
right, so 2 strokes are supposed to be twice as fast as four strokes but this 2000cc engine only produces 200hp? wtf lol
swat7853 2 months ago
@swat7853 yeah my 125cc 2 stroke go kart motor produced 55 hp.. i don't know what went wrong here lol
somenutjob 2 months ago
@somenutjob bullshit it did idiot my kx250f has about 35hp and a cr 500 has about 70 so stfu idiot
mrHansen122 1 month ago
oh jeeebus why does nobody every have a decent video recording device when it comes to these monters!!!
danielsonn77 2 months ago
where can i buy a bike with this engine ? a dnt care who u are even the best motorbike rider couldnt handle the power valve of such a beast
jamster8989 2 months ago
i agree...why didnt they put an expansion chamber exhaust on it? brilent minds to build it then that...what the hell????
MADMANNCR500 2 months ago
IM IN LOVE!!!!!!!
MADMANNCR500 2 months ago
Are you for real!? O.o
Bylga 3 months ago
Put that in my 80 cr dirtbike??
TheDirtbikeboyy 3 months ago 10
100bhp per litre is not uncommon for a 2-stroke engine. It should be able to reliably make 150-200hp per litre, but since this is going into an aircraft it is important to put the least amount of stress as possible on the mechanical components of the engine while running full rpm all day long.
douro20 3 months ago
Im sorry but 2 stokes kinda sound like shit passed 450 cc....
I said I was sorry.
PSP2000MAN 3 months ago
@PSP2000MAN
I don't know about that; I've heard Kawasaki 750s which sounded pretty good.
douro20 3 months ago
I want one please, i'll use it in my new golf cart (^.^ )
DR1ZERO 3 months ago
i want this engine in my kx85
henrykoers12 3 months ago
this engine was built for an aircraft. it has an insane torque curve. the hp is not high because it must be reliable(aircraft). if you wanted it to have a power curve like a snowmobile it would easily make double the hp.
Umassot50 4 months ago
i want that in my car
SiMo666suzukiRider 4 months ago
Thats it? My buddies shop built a 1000 cc gixxer track bike that puts out over 200 bhp, and that's with a flat-lined ecu map-they screwed up and lost the mapping, lol!
dumbenoughou812 4 months ago
What am i missing - the old GP bikes were closing on 200hp with 500cc????
xphilip 5 months ago
4 cr 500 engine in one ... :D there it goes
bonzo9303204406 5 months ago
Mick doohan's NSR500 did 200hp, using a 500cc v4..
Japool1 5 months ago
Comment removed
TerraRoot 5 months ago
200 bhp seems a little on the low side. it's much lower than the potential for that cylinder config. if they had brains and a few expansion chambers, and maybe a turbo or two, they'd reach the 400 bhp mark with ease. hell, there's an inline 3 cylinder based off of cr500's, albeit with a turbo and nitrous, but it reaches nearly 600 hp at the wheels! surely 2000cc can do better than that.
jakthesmack 5 months ago
ah nice. 4x CR500 engine. this would be a great engine for...mh ...nothing.
schwalbstar 5 months ago
Can I have one for my go-kart? Lol. Id have to find 4 of the best expansion chambers ever though
cj15941 5 months ago
@cj15941 rather make one big expansion chamber for all cylinders? :)
FlickTricksOffical 5 months ago in playlist FlickTricksOffical's Favorited Videos
You kidding me right? THIS IS BADASS!!
wilkas222 5 months ago
That's one bad MO FO.
dmoneytuttle 6 months ago
pocket bike engine:D
pukkel10 6 months ago
Hehe, I like the guys standing there breathing exhaust fumes... ;-)
But, why the worthless exhaust pipes? A two stroker really do benefit from tuned exhaust, instead of some plumming...
hultarn 6 months ago
What a racket - I hate the sound of two stroke engines.
JohnLMcCoy 6 months ago
its very match power for what is that ?
KawasakiIsrael 6 months ago
Inpresionante.
TheTrapjaw 6 months ago
Why are the exhaust ports not facing the other way? The plumbing would be so much easier for most applications that way, for example if you wanted to fit it in a car or a bike.
bonecrime 6 months ago
Im more impressed with how it loses rpm on overrun.
LorenzoB16 6 months ago
you can increase the Hp by maby 20% just by changing the manyfold (pipes)...and gaz economy!
ArticKiter 6 months ago
When it idles at the end it sounds like a factory Subaru rally car
531MX 6 months ago
They should so find out how to put this engine in a bike!!
13MOTOCROSS13 6 months ago
0:45 hardcore porn
Bac8ardi 6 months ago
love the 2 bangers
FLUNGSHIT 6 months ago
lmao! what a joke. they obviously know nothing about 2 stokes. that exhaust is rediculous lol.
1theycalldirty 7 months ago
200hp? thats not even impressive for a 4 stroke.. nice built motor, but the output is nowhere near impressive
k0ent 7 months ago
bet a nascar don't sound like that. now thats music
mhdttorana 7 months ago
I want that on my dirt bike right fucking Now
cheefitupnow 7 months ago
put some expansion chamber exhausts on it and improve tho power as hell!
exteministen 7 months ago
God loves 2smokes.
lordNeildowne 7 months ago
Verrry Verry Very Speed... 2stroke its good...
Teenegent 7 months ago
the 500cc gp bikes of the 80s-90s were making 170hp easy so this is kinda shit and a waste of alot of time and money...
DCSPEED23 7 months ago
@DCSPEED23 . This has way waay more torque than a 500cc gp bike.. but I kinda agree that it is a waste of time, unless they put this motor in a bike
MrFibes 7 months ago
This has a good power/weight ratio. It would be nice a genny run at its economical speed spot at constant speed, and put in a hybrid.
NearAbbeyRoad 7 months ago
cant do that with no 4 stroke....
bonsai13100 7 months ago
200 horse from 2000 ccs is crap. I have a 151 (2500cc) Pontiac Iron Duke that makes 275 HP and I know of full race versions that do 350 Hp easy. As far as that goes there was a V4 midget race motor that was a small block Chevy that was basically the outer 4 cylinders with the center four removed. All the SBC hot race parts fit. Word of 375 horse from 2500cc's were common.
jacktheripped 7 months ago
@jacktheripped that seem a little wrong, unless they were using 4 valves per cylinder and altered bore & stroke,
what your suggesting is the equivelent of 750BHP from a 305 chevy? even with 4 valves per cylinder that is a bit suspect?
dexxy45 7 months ago
@dexxy45 NASCAR 350 puts out 850 HP, give or take, with 2 valves per cylinder. With a carburator.
jacktheripped 7 months ago
@jacktheripped well that's a commpletely bespoke block, and is not a small or big block in terms of design, also, no aftermarket parts designed for a small block chevy would fit, so that would be a completely different engine....
dexxy45 7 months ago
@dexxy45 ...injected 410 small blocks in sprint(not Sprint Cup) cars, ALL parts interchange with SBC and easily over 800 HP. There are many examples of people getting 2 hp per cubic inch
I'm just saying for all the work done to that motor they are not getting the results they are paying for
jacktheripped 7 months ago
I wonder if that would beat a 450F...
macroevolve 7 months ago
tuosta sais paljon enemmän jos olis kunnon putket!!!!!!!!!!!!!!
Topsiekku 8 months ago
for engineers, they sure seem clueless on how important a tuned expansion chamber is for a two stroke?? I say, drop the turbos and try a run with the stock pipe set up.. cr500 get close to 55hp, so this set up should pull closer to 220..
calholli 8 months ago
I could only imagine what it would be like with 4 expansion chambers.
motabikeboy 8 months ago 39
@motabikeboy It'd put out infinity horsepower B-)
Copywrightmyass1 4 months ago
BEST ENGINE SOUND I HEARD SINCE YOUTUBE CAME TO EXIST
Moroccan4lifeone 8 months ago 2
Fap fap fap fap
sammylol 8 months ago
Cool, but Id expect quite a bit more for a 2L 2 cycle
My old 100cc kart was making 20hp, if this engine had been optimized to this (fairly mild) level, it would be making twice as much power...
FTBoogie 8 months ago
@FTBoogie The Rotax 250cc motors used in Gran Prix racing make 85+ HP...
jacktheripped 7 months ago
strap on a couple of FMF factory fatty pipes and that thing will rip
laf8675309 8 months ago
You guys have way to much time on your hands..
bilyboby101 8 months ago
its not the point of making heaps of power out of it, its an engineering feat and its awesome!! sure it might make more power with tuned pipes and all the rest but you gotta make sure the bastard is running right before you go tuning it to the edge, in my eyes its a mad feat and would love to see it a year or so down the track!
TheTwoStrokePower 8 months ago
@TheTwoStrokePower well said mate these guys are total idiots on here!
leicestergux 7 months ago
@chriswantshotbabes not a single
TheTwoStrokePower 8 months ago
great sound!
arxmagks 9 months ago
cats 1l 2 stroke twin makes 160bhp so how is this that big? twice the motor but for only 40hp?
XxJareebxX 9 months ago
@XxJareebxX Its a lot of power when it doesn't even have expansion chambers
LordFabs 9 months ago
it would probley be about 350hp and up if you had a exspansion chamber
SCRmotorsports 9 months ago
An expansion chamber is a form of forced induction. Forced induction is when extra air is forced into the cylinder for more power, which is exactly what the expansion chamber does- at a certain RPM range anyways. Two strokes need low end torque to get up to speed quicker. That's why most people tune them for low end power
Gibsongoon 9 months ago
id like to see this dyno again, but with a proper set of expansion chambers... would make this possibly awesome video less disappointing.
crazywin99669 9 months ago
i want to know the rpm on that last run.!
idusclothing 9 months ago
200hp for 2000cc seems a very minimal ammount, in the 80s the 500cc Moto GP bikes were nearly 180hp, seem road 500s modernised engines making over 200
JMcP2392 9 months ago
This has been flagged as spam show
for those of you who dont know.. this is a boat motor
R3DBULLX23 9 months ago
yet a 500cc twin rotary engine makes 80% of the power it makes
enteng2366 10 months ago
shit ill put that in my toyota any day holy smokes !
gsxrful 10 months ago
The Exhaust is RETARDED!! your having the shockwaves being forced back into the cylinder thats why it runs like crap.. its kinda like a 4 way in traffic and all lights are green, individual pipes wouldve been optimal.
carlosr428 10 months ago
@ 53 seconds I thought it seized.
racefactory900 11 months ago
there isn't enought fuel in the tank of a normal bike for that engine. Aferter 1 mile... wow no im out of gas i need to refuel xD
joaosinho19 11 months ago
fuck dirt bike put it in a wheel chair
thecrazyhenchman 11 months ago
leuk voor in mn trabby
351ikke 11 months ago
Enough of the moaning! Just listen to it for f*cks sake, IT IS AWESOME!!!!!!!!
three54ridestore 11 months ago
now put it in a dirtbike
420leadville719 1 year ago 29
reading a few of the hater comments i agree on the exhaust and yes there is a lot of waisted performance but come on you jerks cant you see the effort and engineering which went into this project? never mind expense and time give them a break
GT03235 1 year ago
@GT03235 There is no point in the effort though if you don't do something better. Why would you want a 2000cc V4 that makes only 200bhp? You could buy an 1100cc I3 that makes 280bhp or a 2000cc I4 making 450hp from Two Stroke Shop.
The size, weight, power ratios for this are pretty bad(for a 2-stroke), so the "effort and engineering" was worth nothing.
TheOfficialKC 11 months ago
I WANT THAT ENGINE!!!!!!!!!!!
TheNoisePolluter 1 year ago
Put seperate expansion chambers on and make 300 + hp
pencon61 1 year ago 3
how many rpms was it doing ?
windoes98se 1 year ago
dont listen to all the experts. i would like to see it in a bike frame,it might be 200bhp on a dyno,but convert that into chuckle value when you open the throttle to the stoppers. something else!! like the way you can see it wanting to get off the mountings when its rev ved. aaaaaaaaaaaaaaaagggggggghhhhhhhh
theraker1170 1 year ago
How much power did you loose through not having four seperate expansion chambers...tut..tut....
fezants 1 year ago
Wow... That was uninspiring... The GP500 bikes were making near or more then 200hp with 500cc V4's... You can get a 1000cc twin easily over 200hp in a snowmobile now. Why did they make a 4 into 1 exhaust is baffling, and with no expansion chamber... I can't think of a word. They could of tried to put the stock CR500 pipes on all 4 engines and probably hit near 300hp or more.
morbo123456 1 year ago
not trying to be rude but 4 slapping 500 motors @ idle sounds like the worst chorus i've ever heard lol.
Wszachta 1 year ago
not trying to be rude but 4 slapping 500 motors @ idle sounds like the worst chorus i've ever heard lol.
Wszachta 1 year ago
I love that sound 2 strokes make when they rev down. But like others have said, this is not that much power for a 2000cc 2 stroke. The new ZX-10R makes 196 hp, at the crank I assume, or 206hp at high speed with the ram air helping out. That's a mass production 1000cc 4 stroke. With reasonably long maintenance intervals.
medwards82 1 year ago
that nothin for a 2000cc 2 stroke.... they can make 200hp with 800cc
ps3dethman1 1 year ago
@ps3dethman1 its really not a powerful engine .
Antonio9069455 1 year ago
sound like a 4 stroke on high rpm
korpine 1 year ago
it could have like +300hp, but it doesn't have expansion chambers so...
korpine 1 year ago
Chodzi jak trabant albo warburg ... ;d
BDGINFO 1 year ago
No expansion chamber?... fail
alexcorrigan 1 year ago
Exaust?
Carutal 1 year ago
Power-Trabant engine??
MrFunRacing 1 year ago
Nice, but the exaust is very bad designed for a two strokes engine! you lost over 40% of the theorical global efficiency just because you can't have the return of the shock wave into the cynlinders! The Exaust must be seperated!
ArticKiter 1 year ago 121
@ArticKiter not only do they need to be separate they need expansion chambers as well. that is what allows the shockwave to return so efficiently and gives you the power
89apaul 1 year ago 3
@ArticKiter they also need an expansion chamber.
darkligtning2000 11 months ago
@ArticKiter
For what they wan't it for, there isn't near enough room for 4 expansion chambers, though even if they just had one for the 4 cylinders it would be better than none.
Jakalwarrior 11 months ago
@Jakalwarrior even one would just about nothing, i dont think it would be possible to tune any wheres near correctly.
mageac 10 months ago
@ArticKiter
Those pipes are designed to accept a turbo.
alpha434 10 months ago
The exhaust is goofy because they intend on turboing it. I can't believe all the comments that have accrued over the course of 2 years without anyone seeing that.
alpha434 10 months ago
@alpha434 Well, turbo on a 2 stroke doesn't work all that well unless you're talking about massive displacement such as the diesel two strokes they use in ships where you have to fill a room-sized cylinder with a teaspoon of fuel oil. With both exhaust and intake ports open at the same time, you blow your fresh charge right out the exhaust. Very much not efficient. They also don't have it written in the description that it's going to be force fed.
gymkhanadog 9 months ago
@gymkhanadog Uhhhhh, turbos work great on a 2 stroke... Just has to be set up right!
MalliganTheUFO 9 months ago
@gymkhanadog
That's not true at all. Turbo or supercharging a two stroke eliminates almost all of the timing issues with a two stroke... And in cases where it's not "efficient", do you actually think these guys care? At all? You gave up on fuel efficiency when you start working on two strokes in the first place.
And your final comment... Because they didn't say it was going to be force fed in the description.... They also didn't say that it wasn't.... Do you choose pessimism or optimism?
alpha434 9 months ago
@gymkhanadog I can assure you, at 90% load (what marine engines run at 99% of the time), there's about a thousand times more fuel than 'a teaspoon' injected into the cylinder.
joffeloff 9 months ago
@ArticKiter Definitely need tuned pipes on it. I imagine 200bhp would just be the start if they designed some pipes for it.
Damn that thing is a beast!
gymkhanadog 9 months ago
@ArticKiter yeah, it needs an expansion chamber :/
NastytheGREASERZOMBI 9 months ago
@ArticKiter I think that the other cylinders' exhaust pulses do that job
tnphysics 8 months ago
@ArticKiter I agree, the first thing that went thru my mind as the video started was wtf they thinking with that exhaust lol chambers all the way
triipn 8 months ago 8
@triipn
u never know if the length of each pipe is correct it may have a similar effect just using pulses of adjacent cylinders, I have seen it on 2 stroke diesels namely crossley hstv8, that only revved to 650rpm and had cylinders about 12" diametre. it had 2 manifolds, one per bank, it was called pressure pulse supercharging.
btw the engine in video was for a hover fan jet pack thingy.
tpvalley 4 months ago
@ArticKiter
i think you mean resonator pipes
Noszkovonye 7 months ago
@ArticKiter hmm about 40% = at least 30hp ;)
NikoSebalj 7 months ago
@ArticKiter not sure if i am arguing the same point or not but should 4 cylinders of 2-stroke power have alot more than 200 horses? cc for cc 2 vs 4 is 2:1 equivalent in favor of 2-stroke? a 2.0 liter 4-cycle 4 cylinder motor can reach 150 horses, no? shouldn't a 2.0 L2-cycle produce the equivalent of a 3.6 L 4-stroke motor (6 cylinder power range). i use the theory for dirtbikes as reference as 250 2-stroke and 450 4-stroke are supposed equals...
je5t3r7 6 months ago
@ArticKiter do you mean because there is no expansion pipe?
MrMixedGas 6 months ago
@MrMixedGas The important in the expansion pipe is the length of the belly section determines the relative timing between the negative and positive waves. The timing of the waves is determined by the length of the straight pipe. If the belly section is too short, positive waves have a shorter distance to travel, and return to the exhaust port sooner. This is good if the engine is running at a higher speed, bad if you want to ride on the street.
ArticKiter 6 months ago
@ArticKiter thanks for the information I did not know this! happy 2-Stroking
MrMixedGas 6 months ago
@ArticKiter its nice to see someone on youtube who knews what there talking about.. and didnt say something negitive rascial congrats
drummer7343 6 months ago
They should have those in MotoGP.
Blader999 1 year ago
The engineers don't look too delighted... probably because their ears are bleeding.
99olo 1 year ago 55
@99olo hahahaahahaha i thought about saying something about their ears until i saw this hahaha
happywombatproducts 10 months ago
moar!
dementedx 1 year ago
A bit of tuning this monster should make 300bhp!!!!
tomview1 1 year ago
Four expansion chambers hardly needed (one per cylinder is a golden rule). A Honda CR 500 exhaust should be a good startpoint.
hoplageis57 1 year ago
holly shit, mofo screams
supermaniac5 1 year ago
I think your knowledgeable correspondent who has met God is speaking only of highly developed, highly tuned and high maintenance racing machines. BHP claims are deceptive as there are different ways of calculating it. In 1963, dad bought a new Auto Union car, 3-cyl 2-stroke, 1200cc rated at 60BHP. That car could lick the arse off 6-cyl cars of twice the capacity, rated at 80BHP, but, given a long steep hill, the tables turned due to different torque ratings of the 4-strokes. Very good vid clip!.
peteacher52 1 year ago
ummmm
if all you're getting out of a 2 stroke 2000cc, is 200 bhp, then you are severely underpowered.... man there are loads of 2 stroke bikes under 150cc which can make about 40bhp....
eg. Honda RS 125cc.... it makes 39bhp ...140mph
eg. Honda NSR 500cc..... makes 200bhp...200mph
2 strokes make about 2 to 4 times the power of a 4 stroke, when comparing displacements. so why does your 2 litre perform like a meagre 500cc 2 stroke?
ImetGodfacetoface 1 year ago
@ImetGodfacetoface it would also help if they had a tuned exhaust on it
coryv4 1 year ago
@ImetGodfacetoface I think the same - no tuned pipes, lose a big chunk - 4 into one lose some more.
would have some awesome torque for a stroker though...... but yeah 300+ bhp with minimal development and ass tearing torque.
one of those things - build your own or wait and see.
tomview1 1 year ago
@tomview1 a first time start isn't about perfection you douche.
breakbeatfanatik 1 year ago
@breakbeatfanatik Well derrrrrr!! nob jockey.
tomview1 1 year ago
Sounds like a Trabant on speed...
tannalv 1 year ago
That is one awesome engine, great job. I love my CR 5-hundo, it;s fun to think about the possibilities of a 4 cylinder CR2000. Any plans for what you are going to put it in? I have to agree with the other posts though, it looks like you are leaving a lot on the table with that exhaust. However it would take numerous hours of R&D to make a good pipe. Send me a message if you are interested in someone to make some custom pipes for you, I know someone with experience in making cr500 pipes.
b1asterdude 1 year ago
all the engineering to put 4 cr500s together, and a 4 into 1 tubular exhaust (no expansion chamber?)????? it should have 4 expansion chambers......this doesn't add up.....
captainskidmark 1 year ago
Love it:)
With a proper expansion chamber, another 100hp should be no problem.
roost4racing 1 year ago
hooooooooooooly shit!
WillyWheely 1 year ago
that sound actually got me a bit emotional. fast two stroke sound like a jar of very pissed off wasps. this sounds like a jar of very pissed of wasps who had nitroglycirine for breakfast
rasmAn2 1 year ago
Surely that's a typo. Late model 500cc GP bikes were producing 200bhp.
stevibhoy1 1 year ago
not impressed a mod 600 can break 200
bigmo450 1 year ago
sounds more like 4 stroke
Kalcijs777 1 year ago
@Kalcijs777
Not really...compare the difference between the sound of say, a Honda V65 Magna and this...Sounds nothing alike...The Magna has a 4 stroke V4
scott93257 1 year ago
den motor in nen schneemobil odern in nen quad:D bzw dreirad :D
huskydriver125 1 year ago
So many people getting stuck on power figures and so few are impressed by the engineering behind this :( Impressive machine! I would sure like to know how high it revved. Is the dyno-chart online somewhere or does someone know? Pretty expensive pistons, con-rods and a very well made crank obviously.
KMan750 1 year ago
@KMan750 the engineering isn't impressive when a modded 500 is making 100hp.... they have four of them and can't double that?.... that ''thing'' should be cranking out 400 horses easy.
Gsnickets 1 year ago
lol without the right exhaust this is just shit
888Knitlz888 1 year ago
the beast!
addioalre 1 year ago
2 stroke revving to the moon 4 stroke sux
6013welder 1 year ago
Just plain awesome!
MADMANSYXX 1 year ago 2
Stop writting so much i want to read some comments e_e
iko155 1 year ago
Great vid but seriously let's see some fmf gnarly pipes on that or a costume cone pipe and it would be realy cool it you did a hilborn type of injection with boost bottles and one question how do you get the fuel injection system to mix a/f properly pre tune or o2 sensor maybe?
xandercage7681 1 year ago
@ annadogg do some research befor you open your mouth the 2 stroke makes power every time the piston comes up while the 4 stroke makes it every other time the only reason 4 strokes are a little more power now is due to millions of r&d put in them do that to any motor and it'll pump out hp look at f1 they have small engines like 2l and make 1100hp at 20,000 rpm. a crf450 can't touch a cr500 in a drag 56hp is close too 450s power while cr500 (490cc) makes 62-68hp and capable of 100hp let's see a
xandercage7681 1 year ago
1.8liter honda b18cr vtec makes around 200hp so this really isnt that much for a two stroke....
xrsrule 1 year ago
esse motor com preparação similar as motos de cross cr,yz kx,etc... mais o power jet !!!chega facil nos 600hp!!!!e quanto sera que esse motor vira de rotação final?num carrinho pequeno deve virar um foguete!!!kkkk
leandroxmen 1 year ago