EM57 Leaf Motor Meets the Miata — Full Adapter Plate Assembly Guide | EVMC

If you've been hunting for a clean, reliable, and cost-effective path to a rear-wheel-drive EV conversion, this is it. In this step-by-step assembly guide, we walk through exactly how to mate a Nissan Leaf EM57 electric motor to a Miata manual transmission using the EVMC adapter plate — engineered to fit both 5-speed and 6-speed gearboxes without custom fabrication. The EVMC adapter plate is designed from the ground up for this swap: precision-machined for a direct bolt-on fit, built to handle the EM57's torque output, and priced to make RWD EV conversion accessible to builders who don't want to compromise on quality or break the bank doing it. What we cover: Adapter plate fitment and alignment Spline coupler and shaft engagement Final torque sequence and inspection Whether you're doing a full Miata EV build or just sourcing the right drivetrain hardware, the EVMC adapter plate is the piece that makes it all bolt together. 🔗 To order your EVMC adapter plate or if you have custom converion inquiries: Email Rocky@EVolutionMotorCo.com #EVConversion #MiataEV #EVMC #ElectricMiata #EM57 #NissanLeafMotor #EVSwap #MiataBuilds #EV