Motor & Controller Upgrades: Navitas TSX + MODZ Motor

Why Upgrade?

Stock golf cart motors and controllers are designed for one thing: moving slowly on flat ground. If you're building a street-legal LSV, adding lithium power, or just want real performance, you need components that can handle it.

Navitas TSX Controllers

  • Programmable speed and acceleration curves – customize your cart's performance

  • Regenerative braking for extended range

  • Thermal management and fault protection – built to last

  • Smooth, linear power delivery – no jerky starts or rough acceleration

  • Compatible with 36V and 48V systems

MODZ High-Torque Motors

  • High-efficiency design for longer range

  • Increased torque for hills, heavy loads, and acceleration

  • Durable construction for extended lifespan

  • Direct replacement for stock motors – no fabrication required

Performance Comparison

Stock Setup:

  • 3.5 HP motor

  • 12-15 mph top speed

  • Struggles on hills

  • Inconsistent acceleration

MODZ + Navitas Upgrade:

  • 5+ HP motor

  • 25+ mph top speed (tunable)

  • 30% more torque

  • Smooth, predictable power delivery

  • Better range efficiency with regenerative braking

Our Installation Process

  1. Remove stock motor and controller – proper disconnection and safe handling

  2. Install MODZ motor with correct mounting, alignment, and hardware

  3. Wire and integrate Navitas controller with your existing system (or new lithium setup)

  4. Program controller for optimal performance based on your use case

  5. Test under load and verify all safety systems

No shortcuts. No guesswork. Engineered right.

Add-On Options

  • Pair with lithium conversion for maximum performance and range

  • Custom tuning for speed, torque, or range priority

  • Performance verification and load testing

Compatibility

This upgrade works with most golf cart platforms, including:

  • Club Car: DS, Precedent

  • EZGO: TXT, RXV

  • Yamaha: G-series, Drive

Not sure if your cart is compatible? Contact us and we'll confirm.

Investment

Motor + Controller Upgrade: $1,200+ (installed)

Pricing varies based on cart model, voltage system, and customization level.

Frequently Asked Questions

Will this void my cart's warranty?

If your cart is still under manufacturer warranty, modifications may affect coverage. Most carts we work on are older models or already modified. We recommend checking with your dealer if warranty coverage is a concern.

Can I add this to my existing lithium conversion?

Absolutely. In fact, pairing a Navitas controller and MODZ motor with a lithium battery is one of the best performance upgrades you can make. We'll integrate everything properly and tune it for your specific setup.

How much faster will my cart be?

Speed depends on your cart's gearing, tire size, and how we tune the controller. Most upgrades result in 20-25+ mph top speed, but we can tune for torque and range instead if that's your priority.

Do I need a lithium battery to benefit from this upgrade?

No. The Navitas controller and MODZ motor will improve performance even with lead-acid batteries. However, you'll see the biggest gains when paired with lithium due to better voltage stability and power delivery.

How long does installation take?

Most installations are completed in 1-2 days, depending on the complexity of your cart and any additional customization.

Ready to Upgrade?

Get a custom quote for your cart. We'll assess your current setup, discuss your performance goals, and provide a detailed estimate.

LionHeart Restomods
Jacksonville, FL
Engineered solutions. No shortcuts.
Jay - Founder of LionHeart Restomods