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Originally Posted by teoman
What’s the travesty with the cannon on top of the car?
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Another innovation seen on all F1 cars today, an bell mouth air intake manifold (
acts as a plenum) over the driver's head. The AVS Shadow one appears to be an expansion tube design that changes the high speed ram air into lower speed and higher pressure for consumption into each cylinder intake. As you can see from the various photos they also experimented with the then more conventional velocity stacks. I'm not sure if this was a carbureted engine or fuel injection engine or both at various times.
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https://www.supercars.net/blog/1969-...w-mk1-lowline/
The bottom two photos shown above illustrate how smooth the rear corners are.
Maybe this site below can explain the intake concept better, it might even go into ram air, not sure.
The right bellmouth
https://www.performancebyie.com/blog...ght-bellmouth/
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Of all the aspects of intake manifold design, the bellmouths are particularly mysterious, perhaps because most do-it-yourself builders, and even many businesses, simply do not have the technical or financial resources to conduct tests of bellmouth performance. Building a single custom intake manifold is a big enough task, let alone repeating it three or more times. For that reason, velocity stack style and placement are hotly contested topics on forums and bulletin boards. Luckily, commercial Computational Fluid Dynamics (CFD) software packages can unravel mysteries like this.Our engineering department at Integrated Engineering is equipped to resolve some aspects of the bellmouth controversy.
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http://advancedperformancetuning.blo...-manifold.html
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THE PLENUM
The main purpose of the plenum is to equalize the air flow to the various cylinders, but its volume and shape, as well as the shape of the bell mouths, which are the opening to the runners, are also important.
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http://forums.vwvortex.com/showthrea...G-engine/page2
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The McLaren F1 engine. Too bad it is made by BMW though.
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