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We Are Now Offering An AC Motor Controller Upgrade For The E-Z-GO RXV Golf Cars.
Our "Original" AC Drive System For Golf Cars Just Got A Whole Lot Better With The Introduction of an Automatic Parking Brake!!
HPEVS Golf Car Drive Systems
The "ORIGINAL", and still the best AC drive system available for your golf car!
Now Our Golf Car Drive Systems Come With
a 5 Year Warranty!!
The "ORIGINAL", and still the best AC drive system available for your golf car!
Now Our Golf Car Drive Systems Come With
a 5 Year Warranty!!
We have Designed and Developed A Lithium-Ion Battery Kit For Golf Cars That Is Completely Integrated With The HPEVS Golf Car AC Drive Systems
Mining Vehicle Systems
Specialty motors designed and built for your specific applications!
To get information, please click on "Details" tab below.
Specialty motors designed and built for your specific applications!
To get information, please click on "Details" tab below.
96 Volt Automotive Systems
This is one of many systems available for auto conversions!
To get information, please click on "Details" tab below.
This is one of many systems available for auto conversions!
To get information, please click on "Details" tab below.
Utility Vehicle Systems
We have a drive system to fulfill your utility vehicle requirements!
To get information, please click on "Details" tab below.
We have a drive system to fulfill your utility vehicle requirements!
To get information, please click on "Details" tab below.
Diagnostic and Troubleshooting Documentation.
To obtain this information, please click on "Details" tab below.
To obtain this information, please click on "Details" tab below.
We have added to our website dimensional drawings of the Curtis Instruments controllers.
These drawings can be helpful during the design phase of a project.
To get information, please click on "Details" tab below.
These drawings can be helpful during the design phase of a project.
To get information, please click on "Details" tab below.
Hosts Mike Brewer and Edd China From The TV Show Wheeler Dealers Teamed Up with EV West to Install a HPEVS Drive System Into a 1985 Maserati Bi Turbo
It is Amazing To Us To See What Can Be Done With Our Drive Systems! Here Is Yet Another Example!
The Folks at EV West Have Created a Vehicle with One of Our Drive Systems!
To get information, please click on "Details" tab below.
To get information, please click on "Details" tab below.

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AC 12 Family of Motors
The AC 12 motor is a higher voltage derivative of the AC 9 motor. It can be used in different type of applications, but with the potential of almost 45 horsepower and 100 ft-lbs. of torque with a 96 volt/650 amp system, you will get more bang for the buck.
The weight of this motor is around 50 pounds/22.7 Kg.
Link to power graphs: AC-12 POWER GRAPHS!!
Here is a list of the typical applications for which this motor can be applied:
• Golf Cars
• Utility
• Motorcycle
• Mining
Please contact us with any questions you might have:
Of course all our systems are backed by an HPEVS and Curtis
Included in the package with this motor is the controller of your choice based on battery voltage, wiring harness (generic or specific based on your needs), dash display and a controller mounting plate. Also available are #2 battery/motor cables. The #2 battery/motor cables are needed with all our golf car system. We offer these cables as an option to purchase, but you can make your own cables as well.
Controller Options are as follows:
• 1236-6301 (72V 300A)
• 1236-6501 (72V 550A)
• 1239E-7621 (96V 650A) » 12 volt logic «
AC 12-03.27C-Face AdaptorNEMA C-face end plate 7/8" Shaft w/ 3/16" keyway on drive end |
AC 12-07.5110 SplineClub Car Specific Motor 10 spline coupler with Graziano golf car style adaptor |
AC 12-07.5219 spline![]() 19 spline coupler with Graziano style adaptor |
AC 12-08.5219 splineDana or Team Industries differential Yamaha, E-Z-GO, Columbia, Tomberlin golf carts |