Mazda rotary racing motor

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  • 12A Bridge Port (P-Port) Engine Assembly

    12A Bridge Port (P-Port) Engine Assembly – Renown Racing Built Mazda Rotary Performance Engine

    For rotary enthusiasts seeking the raw, high-revving character that made Mazda rotary engines legendary, this 12A Bridge Port (P-Port) Engine Assembly delivers an uncompromising performance experience.

    Built by Renown Racing, this race-inspired Mazda 12A rotary engine features a full peripheral port (P-Port) configuration designed to maximize airflow, throttle response, and top-end power. Unlike turbocharged setups that rely on boost, this naturally aspirated engine focuses on pure mechanical performance, rewarding drivers with instant response, screaming RPM capability, and the unmistakable sound that only a peripheral port rotary can produce.

    Whether you’re building a dedicated race car, track weapon, circuit racer, or classic rotary project, this engine offers the aggressive performance characteristics serious rotary enthusiasts demand.

    With its competition-focused design and renowned rotary pedigree, this 12A Bridge Port (P-Port) Engine Assembly represents one of the most exciting naturally aspirated rotary engine configurations available.

  • Ultra Rare 12A Bridge Port Engine

    Ultra Rare 12A Bridge Port Engine – TS Race Spec | Vintage Mazda Rotary Racing Engine

    $2,500.00

    For dedicated rotary enthusiasts, collectors, and vintage racing builders, opportunities to acquire a genuine competition-spec rotary engine from the golden age of Japanese motorsport are exceptionally rare. The Ultra Rare 12A Bridge Port Engine – TS Race Spec represents exactly that opportunity.

    Built as a period-correct racing engine and associated with the legendary Katayama Sports Corner racing heritage, this highly sought-after 12A bridge port rotary engine was developed for serious competition use. Featuring an aggressive bridge port configuration designed to maximize airflow and top-end performance, this engine embodies everything enthusiasts love about classic Mazda rotary engineering.

    Whether you’re restoring a historic race car, building an authentic Mazda Savanna RX-3 competition vehicle, or adding a centerpiece to a rotary collection, this engine delivers historical significance, performance pedigree, and collector appeal in one package.

    Unlike modern crate engines or reproduction builds, the Ultra Rare 12A Bridge Port Engine – TS Race Spec offers a genuine connection to an era when rotary-powered Mazdas dominated race circuits and helped establish the rotary engine’s legendary reputation worldwide.