This is different (ENGINE DESIGN)

[laserracer]

Built in the 1920's by Robert Bourke its a twin cylinder 1stroke .. it fires every stroke the guys on on thumper were looking at it for possible dirt bike applications

[cheeseclip]

thats pretty awesome

[laserracer]

wonder if it would vibrate

[vifferman]

The US military are looking at installing a similar engine (http://jalopnik.com/379440/tardec-opposed-piston-opposed-cylinder-2+cycle-diesel-engine) in its vehicles.

[laserracer]

Wow that is similar

[oldskool]

I built something like that using magnets once. I was in my teens and thought I was onto something.

[barty5]

that vid kinda make it look like you would have transformed an old steam train engine.

[evoetr]

Is this the same layout as a Subaru boxer engine ? Where the pistons go sideways ? Random :Punk: Would like to see this in a motox bike!... Would of thought it would stick out rather far though

[evoetr]

http://www.metacafe.com/watch/1157397/subaru_boxer_engine/

[laserracer]

Wonder if you could mount it north south instead of east west ..wouldnt sick out the sides then

[oldskool]

Wonder if you could mount it north south instead of east west ..wouldnt sick out the sides then
yeah missionary position works well

[bogan]

would i be correct in sayins its just a two cylinder 2 stroke but in a boxer configuration with a funny crank. Cant see many benifits over a inline twin two stroke, balance would be better, but takes up heaps of space, so probly not for bikes. Viffermans link has a super and turbo charged one, now this is an idea i like, pity it can only do deisel.
What i want to see in a bike is a supercharged direct injection petrol engine. KTM were working on a direct injection two stroke at some point but it must have stopped, pity.

[evoetr]

Wonder if you could mount it north south instead of east west ..wouldnt sick out the sides then

If you mount it north\south you might need to add the clutch and the gear box to the side of it making it stick out further on one side. Would make it rather imbalanced ? Suppose you can mount the fuel tank to the other side to try and counter balance it lol :0

[B0000M]

If you mount it north\south you might need to add the clutch and the gear box to the side of it making it stick out further on one side. Would make it rather imbalanced ? Suppose you can mount the fuel tank to the other side to try and counter balance it lol :0

how would this be different to any other motorcycle engine layout in regards to clutch and gearbox?

[Taz]

Is this the same layout as a Subaru boxer engine ? Where the pistons go sideways ? Random :Punk: Would like to see this in a motox bike!... Would of thought it would stick out rather far though

It's more like the bmw boxer engine.... but not a 4 stroke.....

[evoetr]

would i be correct in sayins its just a two cylinder 2 stroke but in a boxer configuration with a funny crank. Cant see many benifits over a inline twin two stroke, balance would be better, but takes up heaps of space, so probly not for bikes. Viffermans link has a super and turbo charged one, now this is an idea i like, pity it can only do deisel.
What i want to see in a bike is a supercharged direct injection petrol engine. KTM were working on a direct injection two stroke at some point but it must have stopped, pity.

I've seen some of the new BMW cross road bikes with a funny setup. Trying to find something out about them now, (I have seen some on the motorway and the engine sticks out side of the frame on both sides.... looked very ugly! But thats not to say it is because they have this type of design, it might be some other reason why the engine over hangs both sides.... )

[NighthawkNZ]

hasn't BMW been using the opposing cylinder engine for decades???

[oldskool]

how would this be different to any other motorcycle engine layout in regards to clutch and gearbox?
sharp as ever Boom! maybe they're massive 1000cc pots.
What about Centre of Gravity issues.

[evoetr]

how would this be different to any other motorcycle engine layout in regards to clutch and gearbox?


True, I guess it might make the gearbox sit out allot further then normal motox engines making it a bit heavier on one side ? I don't know :2guns:

[Sammikins]

I once designed and built a torch....

[Taz]

True, I guess it might make the gearbox sit out allot further then normal motox engines making it a bit heavier on one side ? I don't know :2guns:

It's not for motocross fool. :)

[evoetr]

It's more like the bmw boxer engine.... but not a 4 stroke.....

Ahh i see way cool.... man they stick out a far bit though aye when you see them in a frame... keep thinking when im on the motorway and they go down the white line if a car was a bit to close and they hit it .... be like game over.... normally the only thing that over hangs is the mirror... hit that and just keep rolling through traffic :)

[evoetr]

I once designed and built a torch....

really ? self powered ?

[Sammikins]

really ? self powered ?

NO it had a battery in it...

[kezzafish]

that army one is even cleverer. It's almost like 4 pistons in 2 cylinders thus doubling stroke for each bore therefore more cc's... more power. It's not really like a subie or beemer boxer as they're 4 stroke but as bogan said i can't see the advantage over a twin 2 stroke except for the opposing piston idea... that's cool

[evoetr]

It's not for motocross fool. :)

It is when you refer to the orignal question......... " Built in the 1920's by Robert Bourke its a twin cylinder 1stroke .. it fires every stroke the guys on on thumper were looking at it for possible dirt bike applications "

No fool here thanks... >> :)

[kezzafish]

NO it had a battery in it...

ha ha haaaa, fuck a torch with a battery. you must be some kinda genius

[oldskool]

ha ha haaaa, fuck a torch with a battery. you must be some kinda genius
lol only if it vibrates!

what about a wankel engine?

[NighthawkNZ]

I once designed and built a torch....

Solar Powered??? only works when there is sunlight... :D

[barty5]

ha ha haaaa, fuck a torch with a battery. you must be some kinda genius

I like the other designs sams come up with but we cant talk about those patent pending so youll have to wait. But watch out cuase itll fuck you up big time.

[oldskool]

Solar Powered??? only works when there is sunlight... :D

naaah mate, loony powered, only works under the full moon

[evoetr]

that army one is even cleverer. It's almost like 4 pistons in 2 cylinders thus doubling stroke for each bore therefore more cc's... more power. It's not really like a subie or beemer boxer as they're 4 stroke but as bogan said i can't see the advantage over a twin 2 stroke except for the opposing piston idea... that's cool

Yea it looks pretty crazy aye, imagine servicing it....

[Sammikins]

I was only 12, it was one of my earlier inventions, its probably around somewhere... ran off a AA battery, some sort of wire or something, and a bulb. in an acrylic casing. If you lot are impressed by that, wait till you see my next project... it's all about what happens when you mix angle grinders and rocket launchers... Oh and me and dad are putting an engine into my old couch... that's gonna be wicked cool!!!

[kezzafish]

yeah allright Ill Mitch. i'll buy one if you stop using retarded avatars. I like to call them retardvatars

[kezzafish]

avatards? ? ?

[barty5]

yeah allright Ill Mitch. i'll buy one if you stop using retarded avatars. I like to call them retardvatars

Fuck havve you watch Ill Mitch funny as fuck even better after youve had a few.

http://www.youtube.com/watch?v=NnxJvJYz1Lg

[bogan]

how would this be different to any other motorcycle engine layout in regards to clutch and gearbox?

i wud say its fairly different if you are mounting east west (conventional inline direction) as the crank is in the middle, rather than at one end like usual, so no matter where you put the gearbox, you will have bits hanging down below the crankshaft, meaning you will have to mount the whole thing higher, poor cog location etc etc. North-South, id be the same as a bmw boxer engine, but probly cud be a wee bit narrower as it does not need valves/cams etc.

[bogan]

actually while we are on alternative engine designs, what ever happend to that guy in nz who could run his bike on water, he was on 60 minutes with it i beleive, looked like a hoax at the time but still intrested to see what he actually did.

[Sammikins]

actually while we are on alternative engine designs, what ever happend to that guy in nz who could run his bike on water, he was on 60 minutes with it i beleive, looked like a hoax at the time but still intrested to see what he actually did.

BP had him 'taken care of'... :2guns:

[kezzafish]

actually while we are on alternative engine designs, what ever happend to that guy in nz who could run his bike on water, he was on 60 minutes with it i beleive, looked like a hoax at the time but still intrested to see what he actually did.

I was riding my bike down the beach in otaki a few years ago and popped up to the dairy to get a can of fizzy pop and this big fat old cunt with a beard like santa and a gunt (half gut half cunt) that hung waaay over his stubbies came up to me and started asking me where he could get a single cylinder alloy motor for cheap (like the one on my bike).

He reconed he was gonna make hydrogen from water and then started blabing on about how he had made lasers that could set houses on fire and the govt had taken them off him etc etc.

He was a bit mental but a bloody genius. just goes to show you shouldn't judge a book by it's cover 'cos he really did look like shit but i recon some of his inventions may have rivalled sammi's doubleA torch

[Teava]

Its like a Rotary engine but with piston's mounted on the sides.... look's stupid!

Has the same motion in the crank as the Rotary.

[bogan]

BP had him 'taken care of'... :2guns:

shit, better watch my back, im working on a similar idea. Actually better idea, publish my schematics on kber, then they cant kill me to stop the revolution:2guns:, here ya go

[bogan]

I was riding my bike down the beach in otaki a few years ago and popped up to the dairy to get a can of fizzy pop and this big fat old cunt with a beard like santa and a gunt (half gut half cunt) that hung waaay over his stubbies came up to me and started asking me where he could get a single cylinder alloy motor for cheap (like the one on my bike).

He reconed he was gonna make hydrogen from water and then started blabing on about how he had made lasers that could set houses on fire and the govt had taken them off him etc etc.

He was a bit mental but a bloody genius. just goes to show you shouldn't judge a book by it's cover 'cos he really did look like shit but i recon some of his inventions may have rivalled sammi's doubleA torch

musta been some sweet lasers, maybe they took them off him cos he was attaching them to sharks, he was at the beach after all

[kezzafish]

musta been some sweet lasers, maybe they took them off him cos he was attaching them to sharks, he was at the beach after all

yes well that'd be the obvious choice now wouldn't it

[barty5]

I was riding my bike down the beach in otaki a few years ago and popped up to the dairy to get a can of fizzy pop and this big fat old cunt with a beard like santa and a gunt (half gut half cunt) that hung waaay over his stubbies came up to me and started asking me where he could get a single cylinder alloy motor for cheap (like the one on my bike).

He reconed he was gonna make hydrogen from water and then started blabing on about how he had made lasers that could set houses on fire and the govt had taken them off him etc etc.

He was a bit mental but a bloody genius. just goes to show you shouldn't judge a book by it's cover 'cos he really did look like shit but i recon some of his inventions may have rivalled sammi's doubleA torch

And then he pulled out his bottle of meths and coke mix and wandered off down the beach asking for change right.

[koba]

Ok, I think most of you guys kind of missed the points of difference in the Bourke Engine Design...

A big part of the concept is the scotch yoke used to tansfre the upsie downsie of the pistons to the roundie roundie need ed to spin wheels.

They show promise but as yet no-one has made one that works very efficiently in practice. (or if they have they are not telling)

A simple google search will reaveal plenty to anyone remotely interested.

[Sammikins]

avatards? ? ?

'Avatards' would be the perfect term only if i could use a photo of you...

[laserracer]

And then he pulled out his bottle of meths and coke mix and wandered off down the beach asking for change right.

LOL...Thats some funny shit...actually he pretty much described ME.. but im sure i told him i had invented razors

[Hemex]

I built something like that using magnets once. I was in my teens and thought I was onto something.

S'pose its up and down functionality was of no use once you got yourself a lady? Or maybe it had a knob attached to the end? :laugh:

[oldskool]

Since we're on the subject of different engine designs and "inventions" here's the status of my current kickarse project.

My grunter PWM injected, optically timed, stainless steel ball bearing balanced short strokers. yeehaarr:Punk:

My biggest challenge now, engineering wise, will be to lower the centre of gravity if I want to whack a bike cradle ontop/around this.

[Drew]

The oposed piston/cylinder deisel engine looks fuckin briliant. The thing wouldn't vibrate at all, has insane power figures. The only down side I can see, (for a car application), is the rate that the compression ramps up, it would eat starter motors for breakfast. Perhaps a hydrolic starter to sort that out.

[Drew]

Its like a Rotary engine but with piston's mounted on the sides.... look's stupid!

Has the same motion in the crank as the Rotary.


Ummmm, the "crank" motion of a rotory, is the same as a conventional engine, it goes round and round, in a nearly perfect circle, compared to what it's housed in (only not perfect because of engineering tollerences). The thing that is different is how the rotor is driven from it. And still it doesn't resemble the o.p.o.c motor.

[laserracer]

Since we're on the subject of different engine designs and "inventions" here's the status of my current kickarse project.

My grunter PWM injected, optically timed, stainless steel ball bearing balanced short strokers. yeehaarr:Punk:

My biggest challenge now, engineering wise, will be to lower the centre of gravity if I want to whack a bike cradle ontop/around this.

What is that oldschool ?. looks like some sort of medievil torture device

[oldskool]

What is that oldschool ?. looks like some sort of medievil torture device
:shit: you're onto it!!! it's for sex therapy

[laserracer]

sex therapy...just step over here sir and place your wanger inbetween the coil spring...you'll feel a slight prick now

[Sammikins]

Since we're on the subject of different engine designs and "inventions" here's the status of my current kickarse project.

My grunter PWM injected, optically timed, stainless steel ball bearing balanced short strokers. yeehaarr:Punk:

My biggest challenge now, engineering wise, will be to lower the centre of gravity if I want to whack a bike cradle ontop/around this.

Looks stoopid... My gun that shoots knives is way better. :2guns:

[laserracer]

wow how cool so you can always bring a knife to a gunfight

[terbang]

Oh Faaaark too close to the TS3 Commer (http://www.sa.hillman.org.au/TS3.htm) for my liking.

[bogan]

Oh Faaaark too close to the TS3 Commer (http://www.sa.hillman.org.au/TS3.htm) for my liking.

what the shit!, that design is all kinds of crazy

[laserracer]

Thats just mental

[barty5]

what the shit!, that design is all kinds of crazy

to many movin parts to fail.

[oldskool]

to many movin parts to fail.
did I read the BHP for over 3000cc right? seems kinda low

[barty5]

did I read the BHP for over 3000cc right? seems kinda low

yeh its is diesel though torque figures would be interesting. My old VW transporter was turbo 2.5 5 cylinder put out 110kw - 147.5hp but had 250pds of torque.

[bogan]

yeh its is diesel though torque figures would be interesting. My old VW transporter was turbo 2.5 5 cylinder put out 110kw - 147.5hp but had 250pds of torque.

a supercharged 3.5L engine producing 90bhp, torque figures would be fuck all im thinking, though the torque curve would be interesting to see, engine would probly have some crazy dynamics at different rpms.

[barty5]

a supercharged 3.5L engine producing 90bhp, torque figures would be fuck all im thinking, though the torque curve would be interesting to see, engine would probly have some crazy dynamics at different rpms.

Yeh shame they dont show it have to remember that diesel engine relie on torque not hp for there power

[bogan]

Yeh shame they dont show it have to remember that diesel engine relie on torque not hp for there power

but torque times rpm is hp, so are usually very similar, with the exception of two strokes and ricers etc with big powerbands

[Subike]

did I read the BHP for over 3000cc right? seems kinda low

Take into account it was being built and used in trucks 52 years ago,
90 BHP is not bad for a 3000cc desiel when Ford and Chev were only getting 110BHP out of there V* truck motors,
The 3 cylinder Commer was a very common truck here in NZ,
Im sure there are a few here that remember tbe Bull Nosed Commers, almost the first common cab over engine truck.

[barty5]

but torque times rpm is hp, so are usually very similar, with the exception of two strokes and ricers etc with big powerbands

yes more rpm = more hp but when you look at diesel they rev low my dad old boat had 400hp twin v8 diesel maxed out at 3700rpm but put out 700-750 pds of torque each pushed 11tons of power cat to 32-34 knots although it did drink around $50 an hour and that was 4 years ago when diesel wa cheap hence the 3000 liter tanks. try filling that suxer

[bogan]

yes more rpm = more hp but when you look at diesel they rev low my dad old boat had 400hp twin v8 diesel maxed out at 3700rpm but put out 700-750 pds of torque each pushed 11tons of power cat to 32-34 knots although it did drink around $50 an hour and that was 4 years ago when diesel wa cheap hence the 3000 liter tanks. try filling that suxer

yeh, i was thinking more for bikes cars etc, where gears changes torque depending on motor rpm. Musta been a decent sized boat to have 3000L tanks

[IIIRII]

That first post engine would be impossible to get any power out of, or balance.
ps Its nothing like a subaru engine