HG Motorsport ignition coils for R32/R36 engines

Technical optimisation for maximum performance

HG Motorsport high-performance ignition coils provide maximum ignition energy and high thermal stability for modern high-performance engines. In modern vehicles, particularly those with upgraded engines, original ignition coils quickly reach their limits. Misfires, uneven combustion and thermal overload can result. HG Motorsport coils have been specially developed to overcome these challenges. They provide increased ignition energy, improved thermal stability and consistently reliable performance, even under the most demanding conditions.

Technical features of the HG Motorsport ignition coils

• Optimised primary and secondary windings: more windings and high-quality copper wire provide improved energy transfer and consistently high ignition voltage.
• Increased ignition energy (+10% compared with OE): optimum spark-plug supply throughout the complete dwell period, ideal for high-output engines.
• Consistent energy delivery under high load: particularly suitable for turbocharged and supercharged engines requiring stable ignition voltage over longer periods.
• Extended service life: high-quality insulating materials and optimised windings minimise thermal loads and protect against internal short circuits.
• Thermal resistance: continuous operation up to 120°C and stable operation up to 140°C without loss of performance.
• Optimised spark formation: stable ignition even at high boost pressures and with richer mixtures, significantly improving combustion efficiency.

Ignition energy comparison

The diagram shows the superior ignition energy of the HG Motorsport coils compared with standard components:

• Up to 1.5 ms: both coil types deliver comparable energy.
• From 2.0 ms: the energy of the standard ignition coils drops significantly, while the HG Motorsport coils continue to deliver consistently high values.
• At 3.0 ms: the HG Motorsport coils deliver almost 25% more energy, which is crucial at high engine speeds and in upgraded engines.

Even at a temperature of 140°C, the ignition energy of the HG Motorsport coils remains stable at 70 mJ, while the OE coils have already failed or reached critical values.

Ideal applications

• High-performance engines: optimum ignition even under extreme loads.
• Motorsport and trackdays: stability and consistent energy during continuous operation.
• Daily drivers with performance upgrades: improved efficiency and ignition stability in everyday use.
• Replacement for OEM ignition coils: greater reliability and extended service life.

Winding structure and operation

The ignition coils use an optimised primary and secondary winding structure. The primary winding generates a strong magnetic field; when this field collapses, a high voltage is induced in the secondary winding. Thanks to the increased number of windings and improved insulation, consistent ignition energy is maintained even at high engine speeds and during load peaks.

Thermal testing and long-term results

1. Continuous thermal load

• Test setup: continuous operation at 120°C with simulated load changes for 100 hours.
• Result: no reduction in performance and no thermal degradation of the HG Motorsport ignition coils.
• Comparison: OE ignition coils lost approximately 25% of their energy after 50 hours, followed by initial material changes.

Additional test at 140°C

• HG Motorsport: stable operation for 8 hours without failure.
• OE ignition coils: performance drop of up to 40% after 4 hours, followed by thermal failures.

Summary of laboratory data

• Maximum ignition energy: HG Motorsport 120 mJ; OE ignition coil 90 mJ.
• Continuous load at 120°C: HG Motorsport > 100 hours; OE ignition coil 50 hours.
• Functionality at 140°C: HG Motorsport stable for up to 8 hours; OE ignition coil performance drop after 4 hours.
• Insulation resistance (500 V): HG Motorsport > 20 MΩ; OE ignition coil approx. 10 MΩ.

Compatibility with original part numbers

The ignition coil replaces the following OEM part numbers: 022905100B, 022905100E, 022905100H, 022905100L, 022905100P, 022905100S, 022905100T, 022905715, 022905715A, 022905715B, 022905715D, 022905715E, 95560210103, 95560210105.

Suitable for: universal use (not vehicle-specific).