04-04-2025, 04:32 AM
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#31 (permalink)
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Master EcoModder
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I've a better memory for pictures than text. Sorry.
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Originally Posted by Andyman
As the pipe size increases, the flow must slow down to fill that larger volume, so when the exhaust 'gets out' it's no longer trying to 'spray' ambient air out of the way.
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I posited that 'disappat[ing] the exhaust without slowing it' might achieve that. The only analog I can recall is a trumpet mute.
https://trumpetheroes.com/wp-content...-1024x683.jpeg
Now I've moved on to wonder about cymatics.
edit: on the Beetle I found the model but not the .MTL file so it lost the colors and textures. I've cut away the back window and deck lid and mocked up the Coanda nozzle, but now it seems I need to master Curve to Mesh operations to move forward.
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Last edited by freebeard; 04-04-2025 at 04:58 AM..
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Today
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04-04-2025, 01:44 PM
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#32 (permalink)
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amateur mech. engineer
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That quote was from Logic, not me. He wrote it for me.
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04-04-2025, 04:44 PM
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#33 (permalink)
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I retract any and all attribution. That's easier than going back over everything from Permalink #25 and onward.
Could one combine cymatics and the Tesla one-way valve? Vary the size and spacing of the convolutions to address a wide[r] range of frequency?
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04-07-2025, 03:22 PM
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#34 (permalink)
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Quote:
Originally Posted by freebeard
...Could one combine cymatics and the Tesla one-way valve? Vary the size and spacing of the convolutions to address a wide[r] range of frequency?
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...Could one combine Helmholtz Resonance and the Tesla one-way valve?... 
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The Following User Says Thank You to Logic For This Useful Post:
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10-29-2025, 12:13 AM
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#35 (permalink)
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10-29-2025, 02:11 AM
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#36 (permalink)
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Master EcoModder
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Oversteer much?
They could've run the big motor's exhaust forward and put the turbo closer to the little engine's
header to reduce back pressure.
Or just use an electric turbo?
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..Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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10-29-2025, 05:27 AM
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#37 (permalink)
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Master EcoModder
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Quote:
Originally Posted by freebeard
Oversteer much?
They could've run the big motor's exhaust forward and put the turbo closer to the little engine's
header to reduce back pressure.
Or just use an electric turbo?
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These mad Russians do all shorts of crazy sh!t just to see what happens.
In this case the video answers Ecky, the OP's original question very well IMHO?
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02-02-2026, 11:57 PM
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#38 (permalink)
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Master EcoModder
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Quote:
Originally Posted by Logic

These mad Russians do all shorts of crazy sh!t just to see what happens.
In this case the video answers Ecky, the OP's original question very well IMHO?
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It does! honestly i watch their videos for ideas for modding my car
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My last Ecotec project...
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02-04-2026, 10:35 AM
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#39 (permalink)
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Somewhat crazed
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But do you know whether the modification actually works as designed? If they fudge the data, the build and the results how do you know it actually works?
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