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Originally Posted by Christ
CV carbs.
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CV carbs still use a throttle plate.
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Originally Posted by Frank Lee
Controllable intake valve throttling.
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As was pointed out, that's kind of complicated and expensive. Especially if the vehicle in question never came with this feature from the factory. It's a really nice idea, though.
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Originally Posted by niky
Always wondered if you could do throttle-less more cheaply... like say, using an intake tube that's flexible, and having bladders control tube diameter...  |
That would be nice. You could reduce turbulence to almost nothing. Not sure how long the materials would last, though.
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Originally Posted by some_other_dave
The wedge throttle sounds intriguing. The idea could be extended further, so that there is only one gap for air to go through at all times, instead of just at very low throttle openings.
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That sounds kind of like a barrel throttle. I understand they're used in performance motocross.
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Originally Posted by some_other_dave
The slide valves used in some race cars would be one way to do that--the throttle plate slides out of the way instead of rotating out of the way. The intent in a race car, of course, was to eliminate the restriction from the open throttle plate, but it would give you only the one opening.
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Hm... This was something I also considered
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Originally Posted by some_other_dave
Perhaps an iris? That would be quite mechanically complex though.
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An iris throttle might could work, too. Certainly better than a butterfly valve. But, yah, it'd be a mechanical nightmare.