HG performance ignition coils Audi A4 A6 A8 3.7-4.2 V8 engines

Technical optimisation for maximum power

HG-Motorsport High Performance ignition coils

Maximum ignition energy and thermal stability for modern high-performance engines

In modern vehicles, particularly on engines with increased power output, original ignition coils quickly reach their limits.

Misfires, uneven combustion and thermal overload are often the result.

HG-Motorsport High Performance ignition coils have been developed specifically to overcome these challenges.

They offer increased ignition energy and higher thermal stability, and deliver consistently reliable performance – even under the harshest conditions.

Technical features of HG-Motorsport ignition coils

• Optimised primary and secondary windings: More windings and high-quality copper wire ensure improved energy transfer and a consistently high ignition voltage.
• Increased ignition energy (+10% compared with OE): Perfect spark plug supply throughout the entire dwell period, ideal for high-output engines.
• Constant energy output under high load: Particularly suitable for turbocharged and supercharged engines that need a stable ignition voltage over longer periods.
• Longer service life: High-quality insulation materials and optimised windings minimise thermal stress and protect against internal short circuits.
• Thermal resistance: Sustained operation up to 120 °C and stable running up to 140 °C without loss of power.
• Optimised spark formation: Stable ignition even at high boost pressures and richer mixtures, which noticeably improves combustion efficiency.

The diagram shows the superior ignition energy of HG-Motorsport ignition 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 noticeably, while the HG-Motorsport ignition coils consistently deliver high values.
• At 3.0 ms: The HG-Motorsport ignition coils deliver almost 25% more energy – crucial at high revs and on engines with increased power output.

Even at a temperature of 140 °C, the ignition energy of the HG-Motorsport ignition coils remains stable (70 mJ), while the OE coils fail or reach critical values.

Ideal for these applications:

• High-performance engines: Optimum ignition even under extreme loads
• Motorsport and track days: Stability and constant energy in continuous operation
• Daily drivers with a power upgrade: Better efficiency and ignition stability in everyday use
• As a replacement for OEM ignition coils: Higher reliability and longer service life

Winding structure and how it works

The ignition coils work with an optimised primary and secondary coil structure.

The primary winding generates a strong magnetic field which, when it collapses, induces a high voltage in the secondary winding.

Thanks to the higher number of windings and improved insulation, a constant ignition energy is maintained even at high revs and peak loads.

Thermal tests and long-term results

1. Continuous thermal load:

• Test set-up: continuous operation at 120 °C with simulated load changes over 100 hours
• Result: no loss of performance and no thermal degradation of the HG-Motorsport ignition coils
• Comparison: after 50 hours the OE ignition coils lost approx. 25% of their energy, followed by the first changes to the material

Additional test at 140 °C:

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

Summary of laboratory data:

Order now and experience noticeably more power!

HG-Motorsport High Performance ignition coils offer everything that performance-hungry engines need: stability, maximum ignition energy and a longer service life.

Upgrade now and experience performance on a new level.

→ Order now and see for yourself!

This coil replaces, for example, the following OEM part numbers:

077905115AB / 077905115B / 077905115C / 077905115E / 077905115F / 077905115H / 077905115K / 077905115P / 077905115Q / 077905115T