6-Second Rotary | Building A Reliable 13b Powered Mazda 6 [TECH TALK]

Using the Blueprint Racing 6.53 @ 213mph Mazda 6 for some examples we dive a little into how to build a rotary engine for drag racing.

NOTE: Want to learn how to tune a rotary engine? The 13B rotary tuning example is now LIVE in the Practical Standalone ECU Tuning course.

Getting 1500HP out of a rotary engine isn't hard these days with the knowledge in the industry, but doing it with a window of safety and repeat reliability is still a struggle as Jon of Jon Blanch Racing explains. Naturally, some comparisons are made between the rotary and piston world in respects to aftermarket part support which has been growing in recent years but still lacks in many areas no matter how big your budget is, but most interestingly from what is out there the OEM Mazda rotors with some modification are still the go-to choice for performance builds.

An area where the aftermarket has made massive improvements, however, is when it comes to the plates with billet options not necessarily helping engine builders and tuners make more power but instead giving a little more reliability and tolerance to the small windows you have to work within when it comes to getting power out of your rotary.

Porting is also discussed and Jon shares why a semi-peripheral port (semi-pp) is preferred along with why the perfect port placement depends on more than just a single perfect physical location.

0:00 - Intro
1:20 - Factory Rotary Plates
2:22 - Why Use A Billet Plate?
3:40 - Rotary Tuning
5:16 - Billet Boss Plates
6:11 - Plate Coating vs Inserts
8:09 - Factory Rotors
09:18 - Rotor Machining
10:18 - Porting
10:41 - Semi Peripheral Port (Semi PP)
10:54 - Peripheral Port
10:58 - The Advantage of Semi PP Setup
11:35 - Port Locations
12:25 - Best Port Location
12:50 - Outro

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