HPEVS Customer Builds Using Our Drive Systems

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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!!
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.
96 Volt Automotive Systems

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.
Diagnostic and Troubleshooting Documentation.

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.
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.

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What Has Been Done with Our Drive Systems!!

Below are examples of what our customers are doing with our drive systems!

Jeff Wright

Kilowatt Motorsports

Jeff had a vision when he converted his 2005 Honda TRX450R quad from gas burning to electric, he wanted to "Design and build an electric quad using a stock frame while keeping the stock look", with a desire to keep the weigh under 400#. It certainly looks like he has hit the mark.

jeff wright quad

The Build

  • Frame
    • 2005 Honda TRX450R, purchased from Kelly at KMS Performance (was previously a gasoline drag race quad) modified by Lonestar Racing
  • Motor/Controller
    • Sealed HPEVS AC-35 controlled by Curtis Instruments 1238-7601 controller
  • Batteries
    • Earth X Motorsports ETX48E X 9 = 120.6V capable of up to 1,000A burst, built in Battery Management System.
    • Also, ETX12A x 1 for controls and LED lights.
    • Two removable battery boxes, 65 lbs. total w/ tray
    The Powerful Result
    “ At the voltage and current above, the motor is ~76 hp which is good but 129 lb. ft. of torque at the motor! I have a 15 tooth front sprocket and a 70 tooth rear sprocket using 530 chain on a +14” swingarm. So the gear ratio is 4.7:1 so 606 lb. ft. at the axle = Diesel truck territory! ”
    kilowatt motorsport early build

    kilowatt motorsport quad side

    kilowatt motorsport top view

    kilowatt motorsport Electric Quad ET motorpark

    Other links:


    Action Videos: 

    Scott Masterson's 2016 Bayliner 175

    Mr. Scott Masterson took a brand new 2016 Bayliner 175 boat and removed the original 3.0L gas burning motor in favor of one of our dual AC34x2 oil cooled motors .

    Congratulations on an awesome build!

    Other links:

    Jehu Garcia

    Our friend Jehu Garcia, who is located here in Southern California has a YouTube show called The Electric Samba project. Jehu recently traveled to San Marcos to visit Michael Bream and his shop EV West to look at what EV West is working on. In this episode, EV West shows off the Factory Five 818 project that they currently working on; which incidentally, has a HPEVS 35X2 motor installed!

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