RX8 Flywheels

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You may want to read our Flywheel Removal FAQ

Steel Flywheels
Made from high quality steel, precision machined, heat treated, with steel ring gear heat-shrunk and welded to flywheel, bolts included to attach flywheel to rear counterweight, price includes rear counterweight. Weight (including rear counterweight) is approximately 18 pounds. This is very close to the weight of the stock flywheel, but the weight is distributed more towards the center for significantly reduced inertia. This will allow the engine to rev up and down quicker, and will improve acceleration in the mid range. (3k-6k rpm)
Application Years Part Number Image
RX8 04-On 11451 RX-8 Light Steel Flywheel
If you only need the flywheel or want to piece together a steel flywheel kit- the individual parts are listed below.
Flywheel Only RX8 S11445 RX-8 Light Steel Flywheel
Counterweight RX8 11-52X0-N3Z2 Rear Counterweight
Hardware Kit RX8 95179 Flywheel Hardware Kit

 

Aluminum Flywheels
These have a bolted on, tuftrided steel friction surface for long life (also replaceable), steel ring gear is heat shrunk and bolted in place, bolts included to attach flywheel to rear counterweight, needed hardware for clutch mounting supplied, price includes rear counterweight. Weight, including rear counterweight, is approximately 12 pounds. This is a significant savings of weight over the stock flywheel, and the weight is concentrated more towards the center. This will significantly decrease inertia, resulting in improved acceleration through the gears.
Application Years Part Number Image
RX8 04-On 11468 RX-8 Aluminum Flywheel
If you only need the flywheel or want to piece together an aluminum flywheel kit- the individual parts are listed below.
Flywheel Only RX8 S11448 RX-8 Aluminum Flywheel
Counterweight RX8 11-52X0-N3Z2 Rear Counterweight
Hardware Kit Nut and bolt kit 95193

 

Replacement friction plate
For aluminum flywheels. Recommended when replacing clutch.
RX8 11432 Friction Plate
Flywheel Dowel Pins have been needed a few times when someone has damaged them, or the machine shop surfacing the flywheel "lost" them. 30-8220-9923 Flywheel Dowel Pin

 

Tools
The Removal Tool pays for itself the first time it is used by eliminating all frustration, bad language, and potential eccentric shaft damage by other methods. With this tool, bearing removal takes less than one minute.
Pilot Remover Tool 49-1285
Pilot Bearing Installer -- Works great for installing pilot bearing, then the seal. Put bearing on tool, line it up, hit tool with hammer. Four inches of knurl to decrease the hammered knuckles / thumbs. Aluminum and inexpensive. 49-MT-110 Pilot Bearing Install Tool
Pilot Bearing Installing
Alignment Tool must be used when installing any clutch (new or old) to prevent damage to disc, pilot, transmission, and/or the person attempting to put the transmission or engine back in. 49-0033-03 Clutch Alignment Tool
Flywheel Stopper
Bolts to back of engine to hold flywheel while the large nut is taken off.
49-220TB
Flywheel Nut Wrench
makes removing the flywheel nut a lot easier when you do not have impact guns and the 2 1/8" socket needed.
49-22000
Mazdatrix Flywheel Socket 49-22009HD 54 mm Impact Flywheel Socket - for removing flywheel nut if you have an air compressor and impact guns, or even just a long breaker bar and somebody / someway to hold the engine down. Socket is 3/4" drive.

(Please - do not try breaking that nut loose, with a breaker bar, with the engine on an engine stand !!)
Mazdatrix Flywheel Nut Socket 49-22009 54 mm Flywheel Socket - for removing flywheel nut assuming you have a long breaker bar and somebody / someway to hold the engine down. Socket is 3/4" drive.

(Please - do not try breaking that nut loose, with a breaker bar, with the engine on an engine stand !!)
Adapter 49-22008 3/4" adapter to use 1/2" drive. The flywheel nut is put on with over 300 foot-pounds of torque and this adpater CAN BREAK! BE CAREFUL!! (sorry - there is no warranty on it). Better to get a hold of a 3/4" breaker bar that has a warranty from somebody.

(Just to let you know kind of worst case - We have had a few where we needed to use our 1", 1200 foot pound, impact gun with our 1" drive impact 54mm socket!)

 

Mazdatrix RX-8 Home Page Click part number for price View Cart