Driven by the global wave of electrification, many owners of classic models, retro classic cars and even daily cars have begun to explore the modification method of “fuel → electric”. Among all electric modification components, “electric motor conversion kits” are undoubtedly the core link, which not only determines the driving performance of the whole vehicle, but also directly affects the later use experience, stability and legality.
This article will take you to a comprehensive understanding of the mainstream electric motor modification kit brands on the current market, and carry out an in-depth comparison from the perspectives of technical parameters, adapted models, price ranges, etc., to help you clarify the ideal choice for your modification project.
Why Conversion Kits Matter
Electric motor conversion kits replace combustion systems with integrated EV components: motor, controller, wiring, cooling, and instrumentation. Quality kits ensure performance, reliability, and legal compliance.
Leading Brand Analysis
1. EV West (USA)
- Specialty: Performance builds (Tesla Drive Units)
- Ideal For: Porsche 914, BMW E30, race conversions
- Edge: High power (40-100kW), RWD/mid-engine support
2. Zelectric Motors (USA)
- Specialty: Stealth restorations
- Ideal For: VW Bus, Porsche classics
- Edge: OEM aesthetics, collector-grade quality
3. Thunderstruck Motors (USA)
- Specialty: Modular DIY systems
- Ideal For: Educational projects, custom builds
- Edge: Open-source design, flexible components
4. Orion EV (USA)
- Specialty: Advanced BMS integration
- Ideal For: Fleet vehicles, data-driven conversions
- Edge: Smart controllers, stability-focused
5. CMVTE (China)
- Specialty: Cost-effective versatility
- Ideal For: Mini, Piaggio Ape, Jeep Wrangler
- Edge: 15-75kW range, global support, multilingual docs
Brand Comparison
| Brand | Power Range | Tech Openness | Documentation | Primary Users |
|---|---|---|---|---|
| EV West | 40-100kW | Medium | Detailed | Performance builders |
| Zelectric | 40-60kW | Low | Limited | Collectors |
| Thunderstruck | 25-50kW | High | Extensive | DIY/Educators |
| Orion EV | 40-100kW | Medium | Detailed | Commercial fleets |
| CMVTE | 15-75kW | High | Multilingual | Global retro/light commercial |
Selection Checklist
- ✅ Power Match: 25kW (city) vs 75kW (truck/SUV)
- ✅ Compatibility: FWD/RWD/gearbox space
- ✅ Control Systems: CAN protocol support
- ✅ Install Support: Diagrams/remote guidance
- ✅ Total Cost: Include batteries/BMS/labor
Pro Tips
- 🔥 Beginners: Choose integrated kits (CMVTE/EV West)
- 🔥 Collectors: Prioritize tunable controllers (Zelectric)
- 🔥 Educators: Opt modular systems (Thunderstruck)
- 🔥 Global Users: Verify documentation/support
FAQ
Q: Do kits fit all vehicles?
A: Compact/modern cars may have space/legal limitations.
Q: Are conversions street-legal?
A: Varies by country – requires certification in many regions.
Q: What vehicles suit CMVTE kits?
A: Mini, Piaggio Ape, Suzuki Carry, Jeep Wrangler, Toyota Hiace.
Conclusion: Match Your Mission
Your ideal kit depends on goals:
- 🏁 Performance: EV West
- 🎨 Authenticity: Zelectric
- 🔧 Customization: Thunderstruck
- 📊 Data Control: Orion EV
- 🌍 Global Value: CMVTE
Choose wisely – your conversion’s success starts with the right foundation.


