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Grannas Racing

Rotary Mazda RX7 T56 Magnum swap kit (13B-20B FD3S)

$ 6,704.50

Grannas Racing

Rotary Mazda RX7 T56 Magnum swap kit (13B-20B FD3S)

$ 6,704.50

$ 6,704.50

A reliable, strong, bolt-in option for the rotary motors!

Full bolt in T56 Magnum swap kit for the 1993+ Mazda RX7 using the 13B or 20B motor. This kit includes a brand new Tremec T56 Magnum (choose build level - see details below on GR700-GR1000-GR1000F), Quicktime SFI Steel bell housing, billet shifter relocation, and chromoly transmission mount. Driveshaft and clutch is optional, but recommended to make this an easy bolt-in experience. There is NO CORE charge.

If you add up the cost on all these parts, you will see that I am matching prices with big name speed shops like Summit and Jegs. Not only do I match big box store pricing but I put it all together in a one-stop-shop package deal and also provide you with the little details they don't... like proper hardware which quicktime doesn't include... I also include a wiring harness to make wiring in the trans quick and easy, which also allows control of the reverse lockout and speedometer conversion. Oh, and did I mention I have actual product support as well? Try calling Summit and asking for help on your T56 Magnum swap!

The stock tremec is rated at 700 ft lbs of torque. These transmissions have great aftermarket support, aftermarket gearsets, and parts readily available for when you ruin a synchro or break a gear tooth. 

This is perfectly setup for a 1993+ Mazda RX7 who are using the Rotary/13B/20B motor. The shifter sits perfectly in the factory location. 

This bolt-in kit includes:

    • Brand new "stock" T56 Magnum Transmission
    • Quicktime SFI Steel Bellhousing ***MANUAL VERSION***
    • Full chromoly transmission crossmember
    • Prothane Polyurethane T56 transmission mount + hardware
    • Billet aluminum shifter, moves the shift point back and places shift point perfectly in tunnel. SEE PIC!
    • Includes wiring harness with bluetooth module for speedo/reverse lockout
    • Index Plate for quicktime bell to check runout
    • Clutch options (email me)
      • I recommend the "close ratio" TUET11009 - 2.66, 1.78, 1.30, 1.00, .80, .63 but i can also get this in "wide ratio" TUET16885- 2.97, 2.10, 1.46, 1.00, .80, .63
      • Driveshafts are available in aluminum and carbon fiber for the stock rear differential or ford 8.8" swaps.

    All transmission builds are created from brand new stock T56 Magnums, NO USED transmissions EVER. These are then built to your specs. Choose the power level you need. 

    This is a brand new T56 Magnum direct from the Tremec factory, and I match the big box store prices. You can buy from me and get real experience or try calling the big name stores with your swap tech questions and see what kind of service you get! Read more here: GR700 Transmission

    We take a brand new Magnum Trans and give it a 1st thru 4th carbon fiber blocker ring upgrade. Upgraded bronze Fork Pads on all forks. Includes sprayer bung mods which is normally a $150 add-on. This is basically a GR1000 without the cryogenic treatment and rem polishing. Read more here: GR900 Tranmission

    We take a brand new Magnum Trans and give it a full REM polishing and Cryogenic treatment of the gear set. We do a 1st thru 4th carbon fiber blocker ring upgrade. Then include upgraded bronze Fork Pads on all forks. Also includes sprayer bung mod and case mods to fit Supra tunnel. Read more here: GR1000 Transmission

    We take a brand new Magnum Trans and faceplated the 1-4 gears. Includes custom billet shift forks, bronze fork pads, and then we do a cryogenic treatment of the gearset, and then do a rem polishing of the gearset. Read more here: GR1000F Transmission  


    You will need a Turbo FC3S starter for the manual transmission bellhousing. The manual kit is a bit higher priced due to the fact I have to machine down the transmission center case and front plate to allow the starter to clear. see pics!!! ***ALL KITS NOW WILL USE THE MANUAL BELL (this will fit auto or manual rear plate)***

    For those going to swap from auto FD to manual FD, you will need to source the clutch pedal and other parts to make the full changeover.

    I recommend a 4.10 gear to match up well to the close ratio magnum gearing. More info on gear ratios can be found on this page I created T56 Magnum vs V160.