Rotary
Engine Rebuild Services 
Base 13B short block rotary engine rebuilds starting at $1500
Base 20B short block engine rebuilds starting at $2500
Banzai Racing rebuilds all Mazda RX-7 FC3s, FD3s & Cosmo rotary engines using upgraded heat resistant Teflon® Encapsulated Coolant Seals, and Viton® Oil Control Seals and O-Rings. We use RWS 2-piece 2mm Apex Seals, that have 700% more bending strength and are 85% harder than other aftermarket competitors. Additionally, we use all new Apex Seal Springs, Side Seal Springs, Corner Seal Springs. We upgrade to FD3s Corner Springs on all 13B & 13BT rebuilds. Parts replaced and/or upgraded during the engine rebuild include:
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Banzai
Racing 13B, 13BT & 13B-REW Base Rebuild Replacement Parts List
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*Outer
Coolant Seals
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*Injector
Diffuser O-Rings (FC3s
ONLY)
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Inner Teflon® Encapsulated Coolant Seals
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*Crank
Angle Sensor O-Ring (FC3s
ONLY)
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*Inner
Rotor Oil Control Seals
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Tension Bolt Washers & *O-Rings
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*Outer
Rotor Oil Control Seals
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Front
Main Seal
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*Dowel
Pin O-Rings
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Rear
Main Seal
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*Rear
Stationary Gear O-Ring
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*Front
Bolt O-Ring
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*Oil
Crossover O-Ring
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FD3s
Corner Seal Springs
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| **2-Piece 2mm Hardened Apex Seals | *Corner Seal Plugs | |
| OEM Apex Seal Springs |
Thermal Pellet Plug |
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| Side Seal Springs | *Oil Filter Pedestal O-Rings | |
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*Denotes
Upgraded to
Viton®
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Sample
Picture of Rebuild Components
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As a service to our rebuild customers, we provide web-pages with photographs taken during all phases of the engine breakdown and rebuild. Click Here for example.
Included in the cost of all engine rebuilds, we will paint the short-block components any combination of colors per customer's request. Click Here for examples and more information.
Banzai Racing rebuilt engines are backed by our 12-Month warrantee. Click Here for more information.
**20B engine rebuilds include RWS 2-piece 2mm Super Apex Seals.
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Additional
Options to Consider During Engine Rebuilds
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Transmission
Rebuild
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If you would like a quote or information regarding shipping your engine to/from our facility in Indiana, please click here.
We are more than happy to discuss the best options for your application. Please contact us for information regarding other rebuild upgrades not mentioned above.
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Your Rotary Engine & Turbo Specialists
