Custom wiring harness and ECU integration for a classic Porsche 911, engineered for reliability, performance, and future upgrades.
A complete electrical system redesign replacing outdated OEM wiring with a modern, serviceable solution.
This project involved a complete wiring redesign to support an EFI conversion and standalone ECU in a classic Porsche 911.
The original wiring system was not designed for modern engine management, resulting in limited reliability and integration challenges. Our goal was to create a clean, serviceable, and future-proof electrical system tailored to the vehicle.
- Aging OEM wiring harness with degraded insulation
- Not designed for EFI or standalone ECU systems
- Limited capacity for modern sensors and components
- Poor reliability under performance conditions
- Difficult diagnostics and maintenance
- Custom-built engine wiring harness designed from the ground up
- Integration of standalone ECU and modern sensors
- Clean routing, labeling, and modular design
- Serviceable architecture for fast diagnostics
- Future-proof system supporting upgrades without rewiring
- Standalone ECU (custom integrated)
- Motorsport-grade connectors (Deutsch / equivalent)
- Shielded wiring for sensors and signals
- Custom engine harness layout
- Power distribution system (PDM-ready architecture)
- Improved electrical reliability under load
- Consistent engine performance and signal integrity
- Simplified diagnostics and maintenance
- Ready for future upgrades and system expansion
Before
During Build
Final Wiring
Why upgrade wiring for EFI conversion?
EFI systems require modern wiring to function reliably and efficiently.
Can classic cars support modern ECUs?
Yes, with proper wiring design and integration.
Build It Right the First Time.
We design custom wiring systems for motorsport and classic vehicles that perform under pressure and support future upgrades.