02/03/2009
In the realm of automotive history, certain innovations stand out for their sheer ingenuity and lasting impact. The Lumenition Infa-Red solid state ignition system, developed by the esteemed Autocar company, is undoubtedly one such advancement. For classic car enthusiasts and performance tuning aficionados alike, understanding the significance of Lumenition is key to appreciating the evolution of engine management. This article delves into the origins, technology, benefits, and enduring legacy of this remarkable ignition system.
The Genesis of Autocar and Lumenition
The story of Lumenition begins with E.G. Ford, who founded Autocar in 1923. From its inception, Autocar carved out a niche by specialising in engine ignition and carburation. The company quickly built a formidable reputation for its expertise in engine tuning, catering to both road-going vehicles and the demanding world of motorsport. This early dedication to performance laid the groundwork for future innovations.
By the 1950s, under the stewardship of E.H. Ford, Autocar expanded its horizons. It became the official distributor for Sun Tester products, a crucial role in providing diagnostic and tuning equipment to the automotive trade. The 1960s saw Autocar further solidify its position by becoming the national distributors for Autolite spark plugs, a brand synonymous with quality and performance. This period also marked a significant collaboration with British vehicle development departments. Autocar worked closely with these departments to engineer ignition systems for high-performance vehicles, most notably the iconic Jaguar E-type. It was during this era of intense development, in 1968, that E.H. Ford conceptualised and designed an infra-red optronic trigger. This ingenious design would become the foundational element of what would later be known as the Lumenition electronic ignition system.
The Lumenition Infa-Red Solid State Ignition System: A Technological Leap
The launch of Autocar's own Lumenition Infa-Red solid state ignition system marked a paradigm shift in ignition technology. Unlike traditional breaker point systems, which were susceptible to wear, dirt, and electrical interference, the Lumenition system offered a revolutionary approach. At its core was the infra-red optronic trigger. This system utilised a precisely engineered optical sensor and a slotted rotor disc mounted on the distributor shaft. As the rotor turned, the slots interrupted an infra-red beam, sending a clean, sharp signal to the ignition control module. This electronic signal was far more accurate and consistent than the mechanical signals produced by contact breaker points. The result was an ignition system that was virtually unaffected by dirt or distributor shaft wear, ensuring unparalleled reliability and accuracy.
Key Advantages of Lumenition:
- Enhanced Reliability: The solid-state nature and optical sensing eliminated mechanical wear points, drastically reducing the likelihood of failure.
- Precise Timing: The infra-red system provided a consistent and accurate trigger signal, leading to more precise ignition timing.
- Improved Performance: More accurate timing translated into better combustion, resulting in increased power, smoother running, and improved fuel efficiency.
- Reduced Maintenance: With no points to adjust or replace, and less susceptibility to environmental factors, maintenance requirements were significantly lowered.
- Durability: The system was built to withstand the rigors of engine operation, making it a robust solution for a wide range of vehicles.
Adoption and Applications
The superior performance and reliability of the Lumenition system did not go unnoticed. Its innovative design led to its adoption as original equipment by several specialist performance car manufacturers. This endorsement from high-calibre marques underscored the system's quality and effectiveness. Furthermore, Lumenition found its way into fleet vehicles, where dependability and reduced maintenance were paramount. The technology's potential was recognised globally, with the system being manufactured under license in the United States by TRW, a testament to its international appeal and technological merit.
Perhaps one of the most impressive applications of Lumenition technology was its integration into the ignition systems for Scorpion tanks, commissioned by the Ministry of Defence. This demanding application highlighted the system's robustness and ability to perform in extreme conditions, a far cry from its origins in performance road cars but a clear indicator of its versatility.
The Evolution Continues: Lumenition Today
Since the 1990s, the company has been guided by Michael Ford, E.H. Ford's son. Under his leadership, Lumenition has continued to innovate, adapting to the evolving landscape of automotive technology. While maintaining its strong roots in classic and performance vehicles, Lumenition has strategically focused on the competitive world of racing. This strategic shift has seen the company introducing a new generation of cutting-edge products. These include laptop-controlled Engine Management Systems, advanced Lumenition throttle bodies, performance suspension products, sophisticated meters, and specialist silicone HT leads. This ongoing commitment to research and development ensures that Lumenition remains at the forefront of automotive performance enhancement.
Where to Find Lumenition Products
For those seeking to equip their classic or performance vehicles with the renowned Lumenition ignition system, sourcing these components is straightforward. Green Classic & Vintage Spares is a dedicated stockist, holding the entire Lumenition range. They pride themselves on their ability to always source Lumenition products, ensuring that enthusiasts can find exactly what they need. You can conveniently purchase Lumenition products through their website, or if you prefer a more personal touch, they are readily available for telephone enquiries and orders. This ensures that the legacy of Lumenition continues to power vehicles with its exceptional ignition technology.
Lumenition vs. Traditional Ignition Systems
To truly appreciate the Lumenition system, it's beneficial to compare it against older, more traditional ignition methods. The most common predecessor was the contact breaker point system, which dominated automotive ignition for decades.
| Feature | Lumenition Infa-Red System | Contact Breaker Point System |
|---|---|---|
| Trigger Mechanism | Infra-red optical sensor and slotted disc | Mechanical cam and contact points |
| Wear and Tear | Virtually none on the trigger mechanism | Points erode, cam wears, affecting timing |
| Sensitivity to Dirt | Unaffected | Can cause misfires and poor running |
| Signal Accuracy | Sharp, consistent electronic signal | Can degrade due to point bounce and wear |
| Timing Stability | Excellent, remains consistent | Degrades over time, requiring regular adjustment |
| Maintenance | Minimal (no points adjustment) | Regular adjustment and replacement of points and condenser |
| Performance Impact | Improved starting, smoother idle, better acceleration, increased power | Can be good when new, but degrades over time |
| Durability | High, solid-state components | Lower, mechanical components are prone to failure |
Frequently Asked Questions
Q1: What makes the Lumenition ignition system different from standard electronic ignition systems?
While many electronic ignition systems use Hall effect sensors or other magnetic triggers, Lumenition's core innovation is its use of an infra-red optical trigger. This method is inherently less susceptible to interference from electrical noise and physical wear compared to some other electronic triggers and vastly superior to mechanical points.
Q2: Can I fit a Lumenition system to any classic car?
Lumenition offers a wide range of kits designed for various distributors and engine types commonly found in classic and vintage vehicles. It is always advisable to check specific application compatibility with a supplier like Green Classic & Vintage Spares.
Q3: Will a Lumenition system improve my car's performance?
Yes, by providing a more accurate and consistent ignition spark, Lumenition systems can lead to improved engine efficiency, smoother running, better throttle response, and potentially a slight increase in power. The most significant benefit is the restored and maintained performance due to the system's reliability.
Q4: Do Lumenition systems require specific spark plug leads?While not strictly mandatory for all applications, using high-quality, low-resistance spark plug leads, such as the specialist silicone HT leads offered by Lumenition, can further optimise the performance and efficiency of the ignition system.
Q5: Is the Lumenition system difficult to install?
The installation process is generally comparable to fitting other electronic ignition conversion kits. It typically involves removing the existing points and condenser and installing the Lumenition trigger mechanism and control module. Many enthusiasts find it a manageable DIY project, though professional installation is always an option.
Conclusion
The Lumenition Infa-Red solid state ignition system represents a pivotal moment in automotive ignition technology. Born from a heritage of engineering excellence at Autocar and refined through decades of development, it offered a solution that was both highly reliable and exceptionally accurate. Its ability to overcome the inherent limitations of mechanical ignition systems made it a favoured choice for performance car manufacturers and discerning owners alike. From its innovative infra-red trigger to its widespread adoption, including demanding military applications, Lumenition has proven its worth. Today, with the continued innovation driven by the Ford family and the support of specialists like Green Classic & Vintage Spares, Lumenition remains a vital component for preserving and enhancing the performance of classic and cherished vehicles.
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