Amazing sound 4-rotor

[Ryan T]

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Makes me feel happy in my special place.

[.RJ]

Where the hell did they get a 4-rotor engine?

[Goodspeed]

That sounds amazing...I'm pretty sure you can build a 4 rotor, I'm not sure if its either two 13B two rotors mated together or a 3 rotor Cosmo with an extra rotor but man...that car is rediculous

[JustinG]

[CaptainHenreh]

You used to be able to buy a crate 4 rotor from Mazdaspeed, I think, but at the very least they used a 700hp n/a 4 Rotor for racing forever.

A four rotor is a little more than "two 13B's slapped together" but the modularity of the wankel makes building a 4 rotor from 2 two-rotors alot easier than building, say, a V8 out of two I-4's.

You could get the 4 rotor eccentric shaft from someplace like this, and then use 13B (or maybe Renesis?) housings and rotors and bolt them all together.

You'd probably make 4-500 horsepower without really trying too hard.

(P.S. Granny's speed shop made a "ghetto" 4 rotor by basically welding two E-Shafts of 13b's together to run in a dirt car, but I can't find the link.)

[ScottyB]

there is a guy in aussie land campaigning a 4 rotor FD that he put together. it's well up there in power and holds down some pretty amazing times. i think it's one of only a handful, if not the only, 4 rotor FD in australia.

[CaptainHenreh]

I found that link:

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"The engine design uses modified 13B eccentric shafts, and the two engines are joined by a custom made 3/8" thick aluminum adapter plate...By joining the two engines as I did (using only 1/2 the normally required flywheel and counterweight mass), the engine rev'ed much faster than a single engine by its self...In the form shown here, output was around 550hp."

Neat stuff.

[Dave]

son of a bitch! My funny parts are tingling!

[Goodspeed]

This is the car by the way. Looks.....aquatic.

[ScottyB]

Neat stuff.

that's so cool...i have to salute guys that create stuff like that on their own time. i don't even want to attempt to think of what a 550 hp 4 rotor does to a car that size!

[.RJ]

This is the car by the way. Looks.....aquatic.

Separated at birth?



Put that motor in a FD!

[Dave]

yeah, it's ugly as shit, but who cares! :-)