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Rejoice! Curtis's NEW 144 Volt Controller is NOW AVAILABLE!

Affordable, air-cooled AC induction drive systems that are available in six different motor sizes and horse power ratings from 18 to 89 HP peak. The ultimate in power and efficiency, AC drives offer the best regeneration, highest RPM, excellent torque, and are very reliable. Systems start at 36 volts and 75 ft-lbs of torque and go up to 177 volts and 185 ft-lbs of torque. At only a fraction of the cost of the earlier, water-cooled AC drives, these systems are capable of powering a variety of vehicles, including: go-karts, golf carts, motorcycles, cars, trucks, boats, specialty/industrial vehicles, and even some aircraft.

Our electric drive systems are sold as a complete kit that includes an HPEVS motor, Curtis controller, contactor, Spyglass display and your choice of throttle. When we say complete, we mean it! The Spyglass (model 840) displays rpm, controller/motor temperature, volts, and amps. Each Curtis controller is pre-programmed for your unique application. These systems do not require an additional inverter and use a DC battery voltage input. 

If you have any questions regarding your application of an AC motor kit, don't hesitate to call (707) 578-7973 between 9AM-5PM PST to speak with a specialist. Our specialists are knowledgeable EV enthusiasts who can help you determine the correct kit to suit your needs.  We strive to offer the lowest prices and the absolute best service. Do we know these drives? Just ask the factory! We are authorized dealers for HPEVS and Curtis Instruments. You can find out even more about us here: Why Buy from Thunderstruck?

We want you to be happy with your kit, including it's shipment, therefore if you require international shipping or a special shipping method we ask that you please e-mail us at connect@thunderstruck-ev.com after placing your order to provide us any additional details.

This page provides a list of all our kits available.  To narrow your search, select one of the options below: