CRAZY 12-ROTOR Engine Laughs at Mazda

12 rotors, 1400 hp and 830 lbs! It could very well be the biggest custom rotary engine in the world!

[alphazuluz]

“This 12 rotor engine has over 12 rotors”. In other news, I don’t math well.

[kellypotter]

"It may not look like much-"
meanwhile it looks fucking insane

[collinwood]

Lol Rob Dahm is going to be at 2000hp with 4 rotors.

[OfficiallySnek]

Me: **Going on a walk**
The demon in my neighbor's garage:

[colbymarsh]

I can’t thank you enough for including a startup video in the clip, instead of leaving me to research this for the next 2 hours

[quinnhudgens]

*MPG has left the chat*
*GPM has joined that chat*

[heito]

4 and 6 rotors: sounds like a v12 f1 car
12 rotors: sounds like a v8

[KidCorporate]

"May not seem like much?" LOL who TF said that, this thing is a work of art.

[zeanyt]

In combustion events per revolution, this would be a 72 cylinder 4-stroke. This is basically commercial boat motor.

[Youjackwagon]

Can't wait to hear this thing run. Bet it sounds insane after Robs rebuid.

[jonkeau]

The owner of this engine just dropped it off at Rob Dahm’s shop to be completely gone through, modernized with some new technology, and tuned into its final form! This is a boat racing engine, by the way!

[thegastungstenarc]

“Over twelve rotors” in a twelve rotor engine—amazing! I wonder how many rotors it has!

[jords]

Don’t let the miata owners club find this they’ll all want one

[Vinraymi]

"this 12 rotor engine has over 12 rotors!" yeah, 12 is definitely bigger than 12.

[glennoropeza]

That engine was experimented in powerboat racing but quickly vanished with no wins!

[OllieW]

"it has over 12 rotors"

It has exactly 12 rotors, the clue is in the name.

[MeatPez]

Dude the maintenance must be through the roof expensive, but if you have the money for this engine it’s definitely worth it😂 This is a beautiful engineering masterpiece.

[zesped]

"Mom the neighbor is making a tank in his garage again"

[johnnyrocket]

Imagine spending half a million for an engine that sounds like a straight piped generator

[ionbusman]

I remember reading about this engine build like 10 years ago. They had a lot of innovations. Used ceramic apex seals or something crazy