BMI's 4 Rotor RX8 at Formula D Evergreen 2010

The four rotor has to be one of the awesomest engined concieved, and this one sounded pretty badass!

Category:

Autos & Vehicles

Tags:

• Mazda
• RX8
• 4 rotor
• rotary
• formula d
• evergreen speedway

[Crosshead1]

Trade you my 2 rotor RX-8. I'll even throw in my wife.

[Rafael849910]

@DocWolph I know the wankel is not reving 45 k^^ i was just comparing the noise...the le mans r26b, went up to 9k I think( so this one probably don't come close to that). But if u compare in terms of explosions per minute( i guess this is where the high pitch sound comes from), in the wankel u have 3 explosions per cicle and 4 rotors... so 12 X 5k = 60k explosions per minute which is equivalent of a 60k 2 stroke 1 cilinder engine. Or 12k 4 stroke 10 cilinders engine ^^.

[spinmember]

how many BHP does it have? sounds absolutely amazing!

[batsupsidedown]

I think I just came in my pants... Sounds like its from star wars

[dean001281]

rotors 4 eva!

[movies4sure]

I admit it is pretty sweet. But is completely unreliable!

[Cha0sWaffle]

@Rafael849910 That's not entirely correct, the eccentric shaft rotates 3 times per rotor revolution. This means you have 4 combustion events per eccentric shaft revolution on a 4 rotor engine. This would be equivalent to a 4 cylinder 2 stroke or an 8 cylinder 4 stroke operating at the same RPM.

[XrobinhoodzX]

sounds like my weed eater when it idles xD

[parcel105]

Woah... a lot of people dosn't know how it works here... A rotary engine make 1 combustion per rotor per revolution... Same thing as a 2 stroke and a it's 1 combustion per cylinder for 2 revolution in a 4 strokee engine... Simple as that...

[SYSPLUCK]

@TEDDERAMA

That, I understand. I don't know to whom I was raging on, but what I took their argument as, was that only one side of the rotor was used for combustion, the others were for induction and exhaust only, which would make no sense.

[MrSweetleaf92]

Lets start the bidding at 1 dollar

[TEDDERAMA]

@SYSPLUCK Only one rotor face is fired upon per eccentric shaft revolution. The next one is reloading and the one before it is expelling the past cycle as it fires.

If the shaft is spinning at 9k the rotors are at 3k. Now there is no wasted cycle like a piston engine (intake and compression stroke) it does it all in one movement.

Look for this: Rotary Rotational Demonstration by Sprockittherobot