Rotary Junkie
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The V12's only advantage in that case would be RPM capability. More, smaller-displacement cylinders > less, larger-displacement cylinders for RPM. Easier to feed them.
Three Hundred Miles Per Hour
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Naturally, but isn't that because of the higher valve count? If, say, you had a two-valve-per-cylinder V12 and a four-valve-per-cylinder V6, wouldn't the difference in rev capability be cancelled out?
DE
DE
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In theory, yes. In practice, it depends on the size of the valves. The V8 would be able to have larger valves as the engine cylinders are larger in diameter.
Inertia and friction are actually two different sides of the coin. A 3 liter V12 would have more friction than a 3 liter V6, but it would also have less inertia. In practice, the two cancel each other out. This is why small, revvy inline 4s are just as possible as small, revvy inline 6s.
Yes, assuming the valve sizes were the same. There is no inherent engine design that allows for revability. The only reason that rev happy engines are predominately seen as V12s or inline 4s is because V12s are smooth and make pleasant sounds and inline 4s are cheap to manufacture and compact. But various companies have shown that it is possible to make a revvy engine out of nearly any engine design (ignoring wierd ones like V5s of course).Dark Elite
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Right, that helps my limited knowledge a bit, thanks for that 
The next thing I'm wondering is why the sounds of particular configurations are so distinct - although, I think I can answer most of it myself, to take a couple of examples - you get V8s which rev low, with very large capacities per cylinder, which creates a low, heavy sound, whereas a V12, with more cylinders and usually revving higher, is firing a lot more times and so sounds higher and smoother. A six-cylinder would often have the same sort of rev range and capacity per cylinder as a V12, which I suppose is why it sounds like a rougher version of the same basic sound. Am I talking sense, or utter balls here?
The other thing is why a V configuration sounds different to an inline, or indeed a flat, one.
I had forgotten to take valve size into account, and that point's interested me too.. Could it not be argued that having fewer, larger cylinders would be more efficient because you could have larger valves, letting in more fuel/air more quickly, and removing exhaust more effectively, in each cylinder?
I'm rather enjoying pushing the boundaries of what I understand here
DE
The next thing I'm wondering is why the sounds of particular configurations are so distinct - although, I think I can answer most of it myself, to take a couple of examples - you get V8s which rev low, with very large capacities per cylinder, which creates a low, heavy sound, whereas a V12, with more cylinders and usually revving higher, is firing a lot more times and so sounds higher and smoother. A six-cylinder would often have the same sort of rev range and capacity per cylinder as a V12, which I suppose is why it sounds like a rougher version of the same basic sound. Am I talking sense, or utter balls here?
The other thing is why a V configuration sounds different to an inline, or indeed a flat, one.
I had forgotten to take valve size into account, and that point's interested me too.. Could it not be argued that having fewer, larger cylinders would be more efficient because you could have larger valves, letting in more fuel/air more quickly, and removing exhaust more effectively, in each cylinder?
I'm rather enjoying pushing the boundaries of what I understand here
DE
Rotary Junkie
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Well, the issue with having fewer, larger cylinders and big valves is a percentage deal.
Yes you're moving more air in and out quicker, but you NEED to move that air. Less stuff to suck, squish, bang and blow means less need for the hyooge valves.
Yes you're moving more air in and out quicker, but you NEED to move that air. Less stuff to suck, squish, bang and blow means less need for the hyooge valves.
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/facepalm
Forgot that
DE
Forgot that
DE
mcsqueegy
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Making a new post so DE notices it... here's my rather fast Minolta. URL supplied too.
http://au.youtube.com/watch?v=wjicR3rqoOY
http://au.youtube.com/watch?v=wjicR3rqoOY
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I'll try this as soon as I can - my Minolta is currently doing the Fuji 1000km.
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i got 334.65 mph in my toyota minolta 88c-v with nos. the car got a bit bouncy but didin't wheelie. I think it can be more fast.i will upload the picture as soon as posible
mcsqueegy
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Well done on the speed Mcsqueezy.👍
I was just trying to get the VW Nardo to 300, got it to about 260km/hr. (about 385mph)
As for the Viper SRT/10, i've still got a long way to go, got it to 430. (about 350)
260km/h is only 161mph
I had the Minolta up to 330mph the other day but didn't get to take a photo.
I will tune it up again and take a photo soon hopefully.
mafia_boy
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@ Your Brother Macca. Should've told him to sleep on the floor. 
mcsqueegy
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I had the same situation with the Supra... I got 0.01mph off and then threw my controller...
Can your sister spend a few years locked in my closet??
Nice speeds on the RX7. You're taking all the sprint categories to town mate.
then only took the record by a slight amount 
. But I'll make a big project out of it one day.No you can't take my sister, unless it's a childcare situation of course 👍
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Good work on the new speeds all, especially that Delta S4!
As for me, my Playstation 3 is one of the ones that won't play PS2 games, so I've not been able to mount any challenges over the last few months. With any luck I should be collecting my old PS2 over the Christmas period and investing in an external capture card for my laptop, once again allowing me to set some new speeds.
Hopefully come new year I'll be able to start taking all my records back.
Try the sports suspension instead of the racing one; on the Nardo it will allow you to set a much softer spring rate, which is ideal for high speed tuning.
As for me, my Playstation 3 is one of the ones that won't play PS2 games, so I've not been able to mount any challenges over the last few months. With any luck I should be collecting my old PS2 over the Christmas period and investing in an external capture card for my laptop, once again allowing me to set some new speeds.
Hopefully come new year I'll be able to start taking all my records back.
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Good work on the new speeds all, especially that Delta S4!
Try the sports suspension instead of the racing one; on the Nardo it will allow you to set a much softer spring rate, which is ideal for high speed tuning.
As for me, my Playstation 3 is one of the ones that won't play PS2 games, so I've not been able to mount any challenges over the last few months. With any luck I should be collecting my old PS2 over the Christmas period and investing in an external capture card for my laptop, once again allowing me to set some new speeds.
Hopefully come new year I'll be able to start taking all my records back.
Thanks, i will try that.
When i get a Ps3 i will do try and avoid the one that doesn't play Ps2 games, Sony always screw up remodels of their consoles. 
mcsqueegy
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Heh. You probably shouldn't have said that
I was hitting 302 until you revealed that secret! I left the gearing as it was, and...
mcsqueegy
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My name has no z in it... Here's my Audi RS4 video, finally, as the first video was corrupted, somehow.
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Here's my Audi RS4 video, finally, as the first video was corrupted, somehow.
I only just realiised it's mcsqueegy, i always thought it was mcsqueezy for some reason.
Back when i was called lthiele literally just about eveyone called me Ithiele...
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