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ROTARY DYNAMICS REMANUFACTURED ENGINES

Rotary Dynamics Engines are fully disassembled and inspected for evidence of failure.  A thorough cleaning process ensues, consisting of macro degreasing, removal of residual carbon build-up and complete ultrasonic cleaning.  External component finish is restored to automotive industry standards for corrosion-resistant coatings.  All components are inspected and compared to Mazda service specifications.  Only top quality components which are found to be in compliance are used in the reassembly process.  Non-compliant or non-salvageable components, primarily rotors and housings are discarded.  All seals, gaskets and critical rotor components are replaced as a matter of course.  Rotary Dynamics backs all stock engine configurations with a one year warranty from the date of purchase.

   

        Left: old rotor vs. freshly cleaned rotor    Right: ported side plate during reassembly process

YEAR

APPLICATION

PART NUMBER

PRICE (CDN)

PRICE (US)

1979-1985

12A, Stock1

E17001

$2250

$1960

1984-1985

13B, Stock

E17002

$2250

$1960

1986-1988

13B, Stock 6 port, Non Turbo

E17003

$1800

$1565

1987-1988

13B, Stock 4 port, Turbo

E17004

$1950

$1700

1989-1992

13B, Stock 6 port, Non Turbo

E17005

$1850

$1625

1989-1992

13B, Stock 4 port, Turbo

E17006

$1950

$1700

1993-1995

13B, Stock 4 port, AT

E17007

$2300

$2025

1993-1995

13B, Stock 4 port, MT

E17008

$2300

$2025

CORE DEPOSIT - $400-$1300 CDN/US, please inquire for further detail prior to ordering

 

Shipping is available worldwide.  Please inquire for further detail.

 

 

Additional Engine Services

PORTING - Various porting levels available upon request.

ROTOR APEX SEAL CONFIGURATION - In 1986 Mazda introduced a newly-designed 2mm 3-piece apex seal in an effort to improve sealing and ultimately compression. Newer apex seals are of the 2-piece construction, however still with a thickness of 2mm. In higher boost applications or to salvage a pair of good rotors, an apex seal groove modification can be performed. The end result in higher boost applications is a set-up with thicker apex seals which are signficantly more resistant to shear and bending.  This is a highly recommended service for boosted applications or situations where a pair of rotors with slight damage to the apex seals grooves could be reused.  This service is available as an upgrade over the above pricing.

 

Notes:

1. 12A engine configurations differ between 1979 and 1985.  Considering the age of the first generation RX7, there exists a possibility that the original engine may have been replaced or modifications made at some point.  As a result, the exact configuration may not necessarily match the original equipment specifications.  If in doubt, a core must be provided in advance, in order to properly assess the configuration of the engine.

2. All engines identified as "stock" are guaranteed to be a direct fit to an original, unmodified application.