Rotary s13 from Russia

[driftsucky]

I'm so excited about this. I honestly love the aesthetics more than the motor. I mean, rotories are cool and all, but I don't really like'em. But, it's cool that you're doing it.

[DiegoMasid13]

Awesome work

[RIDER]

Proceed directly to the porting channels.
Exhaust ports:
So look standard exhaust bushing, note the gaps


I pulled the bushing, I cleaned everything inside


Primarily I attach to bushing desired shape

Then I increased its length, and a long time customized up to the moment until they removed the gaps



Directly porting:



Intake ports:

[Sprinqer]

This is hands down one of the coolest s13 builds I've ever seen.

[poondobber]

i am loving this. What is the benefit of closing the stock ports?

I looked it up on Mazdarotary.net

The peripheral port is the ultimate form of porting for a rotary engine without turning to forced induction. Instead of conventional metal shaping with a grinder, the side ports are actually filled and completely new circular - peripheral - intake ports are fitted directly through the rotor housing and is easily identified on an engine by its tubular intake manifold. This modification has potential for over 300hp but as it is developed for racing, results in very poor drivability, fuel consumption and needs an exhaust system designed to produce excessive noise. Like the bridge port, the PP produces its maximum power past 8,000rpm creating increased stress and wear on components.
And instead of idling at around 1,000 – 1,500rpm for the previous porting methods, the PP engine will not idle much below 2,000rpm and is impractical and virtually unusable on the street.

PRO'S: The ultimate form of rotary porting for maximum power
CON'S: Excessive noise, extensive intake mods, very poor drivability and fuel consumption, relatively short engine life, very expensive, narrow power band

The driveability is most likely due to the narrow power band and (im guessing) poor low end torque. This is obviously not a cruiser though so driveability is subjective along with excessive noise. I found the short engine life comment funny since I thought all rotaries had short engine life.

Im expecting this thing to shoot flames, shatter windows, and scare children.

[dubs&boost]

oh man, yes that sounds like one hell of a plan. love the sound of a large ported rotary, can't imagine how loud this will be with peripheral ports. Are you fabbing the intake/exhaust manifolds yourself?