Transparent carburetor and super high-speed camera

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stuartrubin
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Your car is a: 1975 Fiat 124 Spider
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Transparent carburetor and super high-speed camera

Post by stuartrubin »

I know that we are all impressed with our fancy dual-throat, progressive carburetors, but this guy built a transparent carburetor and filmed it in action with a super high-speed (28K frames per second!) video camera. You can actually see the fuel intake from the bowl, bubbles of liquid fuel in the venturi, then they get vaporized in during the intake stroke. It's really a beautiful thing to watch!

Plus the guy and his dad give a fantastic lesson on how a carburetor works. It's a must see for a beginner from an educational point-of-view, but really mesmerizing to watch it in action.

https://www.youtube.com/watch?v=toVfvRhWbj8&t=1397s
Stuart
1975 FIAT 124 Spider
Il Mostro di Frankenstein
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aj81spider
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Your car is a: 1974 Fiat 124 Spider
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Re: Transparent carburetor and super high-speed camera

Post by aj81spider »

That is cool. Watching the droplets get aerosolized is pretty amazing.
A.J.

1974 Fiat 124 Spider
2006 Corvette
1981 Spider 2000 (sold 2013 - never should have sold that car)
18Fiatsandcounting
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Re: Transparent carburetor and super high-speed camera

Post by 18Fiatsandcounting »

Agreed, that is pretty awesome! I'm just glad my throttle valves are brass instead of PLA...

Reminds me of the time (just for grins), I took the float cover off my carb and ran the engine, carefully dribbling in more gas to the float bowl so it would keep running. It was interesting how churned up the gasoline in the bowl was, even with the car being stationary.

Kinda dispels any notion of the gas being nice and quiet while it sits there waiting to be sucked into the engine, one reason why I don't think the float adjustment needs to be super accurate. Heck, the fuel dances all over the place even if you did have the float set exactly right. And that's just at idle. Imagine what it does under turning, accelerating, braking, etc.

-Bryan
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