Loudest Lego vacuum engine; sounds like real V Twin floating flap valves 12.2cc

Phone equalizes the sound but you can still hear the engine drown out the sound of the vacuum cleaner. A phone app showed peaks of 90 Db but not sure how accurate that is. The sound is actually the flaps closing and not due to any air movement. The flaps are free to move forward and back allowing a very good seal (at least for Lego).
The rpm is not very high due the the force required to open the valves at high vacuum but due to the much better seal compared to other Lego vacuum engines the torque is far higher.

[@nathanmahoney6346]

Sounds like a Harley-Davidson, but honestly, I kinda expected that from a Lego V-twin with a setup like this.

[@switch9283]

Sounds like my lawn mower running away form me

[@shlushe1050]

Sound and seems to perform super good! I would love to see a good demo of its performance, like lifting things or moving something!

[@nuclearpowerphysics5409]

He isn’t lying this actually sounds like a engine some sort of one cylinder.

[@PrzemyslawJ]

it's the most interesting engine I've ever seen!

[@yuvallegomotorized]

Wow, i so love the way you combine the technic with the lego system 🥰.
I love to use it too. Your engine is a killer man 👍
Im working in my version to v motor now. My plan is to make it low rpm as possible with bigger torque.
Edit: its ready 🔥

[@Dudeface167]

Nicely built!

[@the_bacon37]

this sounds really good wow, good job😮

[@mathilde_bhr3527]

its sounds super good

[@nathandeetz6557]

This sounds like a diesel log splitter

[@bricknplay]

Very nice

[@AccurateBrix]

nice

[@scannaunderscore1]

Quality

[@xxfrancyxx7799]

this engine of yours is very interesting, could you show how it works?

[@Wywydoesstuff]

that's sick
👌👌👌👌👍👍👍👍

[@nuclearpowerphysics5409]

Oh dang it’s a 2 cylinder.

[@nuclearpowerphysics5409]

Maybe do a video like run it so fast it blows up I wonder what it would sound like?

[@cstwyvern841]

Wow

[@williamkoenig7433]

You should make a tutorial

[@theepsilon-921]

*L O U D*

[@NoMilkforsale]

helicopter helicopter