awesome.....
i wonder just where they mounted that camera. wicked! if only they picked a 20 valve yamaha engine....
i wonder just where they mounted that camera. wicked! if only they picked a 20 valve yamaha engine....
Joined May 2006
4K Posts | 2+
Mts-7
<div class='quotetop'>QUOTE(BigAl @ Oct 12 2007, 03:30 PM) [snapback]94941[/snapback]<div class='quotemain'>
awesome.....
i wonder just where they mounted that camera. wicked! if only they picked a 20 valve yamaha engine....
you mean a 5 valve head....I don't think there would be room for the camera hold
but, yes that would be sweet.
What got me, was how small the flame gets. I thought it would be more dramatic.
awesome.....
i wonder just where they mounted that camera. wicked! if only they picked a 20 valve yamaha engine....
you mean a 5 valve head....I don't think there would be room for the camera hold
What got me, was how small the flame gets. I thought it would be more dramatic.
<div class='quotetop'>QUOTE(Traverser @ Oct 13 2007, 01:15 AM) [snapback]94960[/snapback]<div class='quotemain'>
you mean a 5 valve head....I don't think there would be room for the camera hold
but, yes that would be sweet.
What got me, was how small the flame gets. I thought it would be more dramatic.
agree about the flame burn...would have thought it would be a bit more "explosive".
and the exhaust valve opens whilst the burn is still happening...?
must be a slow revving engine at low revs then coz it didnt look that efficient.
wonder if they used fibre optics for the images and lighting?
you mean a 5 valve head....I don't think there would be room for the camera hold
What got me, was how small the flame gets. I thought it would be more dramatic.
agree about the flame burn...would have thought it would be a bit more "explosive".
and the exhaust valve opens whilst the burn is still happening...?
must be a slow revving engine at low revs then coz it didnt look that efficient.
wonder if they used fibre optics for the images and lighting?
<div class='quotetop'>QUOTE(BigAl @ Oct 13 2007, 02:51 PM) [snapback]95016[/snapback]<div class='quotemain'>
agree about the flame burn...would have thought it would be a bit more "explosive".
and the exhaust valve opens whilst the burn is still happening...?
must be a slow revving engine at low revs then coz it didnt look that efficient.
wonder if they used fibre optics for the images and lighting?
it's called overlap, you would be surprised for how many degrees in a performance engine there is overlap, not needed in engines that use compressors like turbos.
cool video trav
agree about the flame burn...would have thought it would be a bit more "explosive".
and the exhaust valve opens whilst the burn is still happening...?
must be a slow revving engine at low revs then coz it didnt look that efficient.
wonder if they used fibre optics for the images and lighting?
it's called overlap, you would be surprised for how many degrees in a performance engine there is overlap, not needed in engines that use compressors like turbos.
cool video trav
Fantastic video, I've searched for something like this for ages because I'm reading up about how racing cars work in my spare time, but I've never been able to find anything like this. It isn't a racing engine, obviously, but its great to see the actual combustion for real.
<div class='quotetop'>QUOTE(roger-m @ Oct 14 2007, 06:28 PM) [snapback]95217[/snapback]<div class='quotemain'>
it's called overlap, you would be surprised for how many degrees in a performance engine there is overlap, not needed in engines that use compressors like turbos.
cool video trav
does the overlap empty the cylinder quicker?
i can understand how it would do that(if it does) and that would lead to a better induction?
still seems that its wasted energy but must be there for a reason i guess.
it's called overlap, you would be surprised for how many degrees in a performance engine there is overlap, not needed in engines that use compressors like turbos.
cool video trav
does the overlap empty the cylinder quicker?
i can understand how it would do that(if it does) and that would lead to a better induction?
still seems that its wasted energy but must be there for a reason i guess.
<div class='quotetop'>QUOTE(BigAl @ Oct 15 2007, 10:51 PM) [snapback]95416[/snapback]<div class='quotemain'>
does the overlap empty the cylinder quicker?
i can understand how it would do that(if it does) and that would lead to a better induction?
still seems that its wasted energy but must be there for a reason i guess.
its just a way of getting more air/fuel mixture in by means of opening the intake valve earler, also the exhaust gas exiting can help to pull the fresh mixture in, like a sucking effect.
does the overlap empty the cylinder quicker?
i can understand how it would do that(if it does) and that would lead to a better induction?
still seems that its wasted energy but must be there for a reason i guess.
its just a way of getting more air/fuel mixture in by means of opening the intake valve earler, also the exhaust gas exiting can help to pull the fresh mixture in, like a sucking effect.
<div class='quotetop'>QUOTE(Traverser @ Oct 16 2007, 08:55 PM) [snapback]95587[/snapback]<div class='quotemain'>
No, if it was a diesel, there wouldn't be a spark plug.
spot on trav
No, if it was a diesel, there wouldn't be a spark plug.
spot on trav
<div class='quotetop'>QUOTE(phildean @ Oct 16 2007, 08:04 PM) [snapback]95575[/snapback]<div class='quotemain'>
It's a diesel engine Big Al, hence the revs.
iknow that others have commented on this as well but i just have to say that the last time i saw a spark plug in a diesel, it was the result of a massive head-on collision.....
IMO, the revs are hard to determine cos of the super slow-mo but it is a logical assumption based on the idea that you want a large cylinder bore with a simple valve train to see a bit more clearly and those types of engines are not screamers..
It's a diesel engine Big Al, hence the revs.
iknow that others have commented on this as well but i just have to say that the last time i saw a spark plug in a diesel, it was the result of a massive head-on collision.....
IMO, the revs are hard to determine cos of the super slow-mo but it is a logical assumption based on the idea that you want a large cylinder bore with a simple valve train to see a bit more clearly and those types of engines are not screamers..
Joined Jun 2007
10K Posts | 1K+
Norah Head
A few funny things with that vid ...
I don't think it is a proper ( explosive ) combustion, I think its a bit of a mockup ...
1. The intake mixture is being forced in under pressure .... have a look and you can see mixture coming in through the intake valve whilst the explosion is supposedly taking place ...... odd because even a supercharger would not have enough grunt to force it in against the explosion .... engines tend to want to blow the explosion back out the intake under ignition..
2. Under what conditions would a blower still push charge in against the explosion?? ... if there was no real compression .... hence I think a whole side of the head is missing and it is either one cylinder of a multicylinder engine or it is a mock up engine being powered by an electric motor and a charge blown in.
3. by the stage it gets into the cylinder in normal engine the mixture should be much more completely vapourised ... almost invisible like ... this has some mocked up charge of a very rich fuel for visual effect being "blown" in under pressure.
The end result well it looks good and gives the right idea .... kinda .... its a bit misleading as to what is going on at intake ( too much pressure there when the valve cracks and whilst supposedly under explosion.) ... and exhaust really ... should see lots of flame going out exhaust ( another reason I think the side is open ) there seems no explosion left escaping out the exhaust hence ... where else did it all go??
So perhaps the title should be:
Inside a not really working engine
I don't think it is a proper ( explosive ) combustion, I think its a bit of a mockup ...
1. The intake mixture is being forced in under pressure .... have a look and you can see mixture coming in through the intake valve whilst the explosion is supposedly taking place ...... odd because even a supercharger would not have enough grunt to force it in against the explosion .... engines tend to want to blow the explosion back out the intake under ignition..
2. Under what conditions would a blower still push charge in against the explosion?? ... if there was no real compression .... hence I think a whole side of the head is missing and it is either one cylinder of a multicylinder engine or it is a mock up engine being powered by an electric motor and a charge blown in.
3. by the stage it gets into the cylinder in normal engine the mixture should be much more completely vapourised ... almost invisible like ... this has some mocked up charge of a very rich fuel for visual effect being "blown" in under pressure.
The end result well it looks good and gives the right idea .... kinda .... its a bit misleading as to what is going on at intake ( too much pressure there when the valve cracks and whilst supposedly under explosion.) ... and exhaust really ... should see lots of flame going out exhaust ( another reason I think the side is open ) there seems no explosion left escaping out the exhaust hence ... where else did it all go??
So perhaps the title should be:
Inside a not really working engine
Does anyone watch The Garage with Jock in Spain? Anyway, I watch it with my dad and there was a diagram of that working because they were explaining how it works etc. and this really helps me understand because I'm slightly slow
<div class='quotetop'>QUOTE(Louise @ Oct 30 2007, 07:42 PM) [snapback]97746[/snapback]<div class='quotemain'>
Does anyone watch The Garage with Jock in Spain? Anyway, I watch it with my dad and there was a diagram of that working because they were explaining how it works etc. and this really helps me understand because I'm slightly slow
yeah i watch it. there sure are some nice motors go through that place.
Does anyone watch The Garage with Jock in Spain? Anyway, I watch it with my dad and there was a diagram of that working because they were explaining how it works etc. and this really helps me understand because I'm slightly slow
yeah i watch it. there sure are some nice motors go through that place.
