Pertronix Flame-Thrower Ignition Coil 40,000V Black — High-Output, 1.5Ω for 6V/12V Systems

PerTronix Flame-Thrower Ignition Coil 40011 is a high-output, oil-filled canister coil that produces up to 40,000 volts to deliver a stronger spark for improved combustion and throttle response in 6V and 12V inductive electronic ignition systems.

This compact black Flame-Thrower coil from PerTronix is engineered as an upgrade over many factory units, offering higher secondary voltage and a heat-managing oil-filled enclosure for reliable street use. It’s optimized for PerTronix Ignitor electronic systems but remains compatible with most points-style or electronic inductive distributor ignitions. Designed with a 1.5 ohm primary resistance, the coil works in both 6- and 12-volt configurations to boost spark energy without changing the underlying ignition design.

How will this coil affect engine starting and throttle response?

Stronger spark energy helps ignite the air/fuel mixture more consistently, which can improve cold starts and make throttle transitions crisper. The higher voltage capability reduces the chance of a weak or misfired cylinder under load.

• Up to 40,000 volts secondary output for stronger spark
• Improved combustion stability at idle and under acceleration
• Reduces hesitation on sudden throttle inputs
• 1.5 ohm primary resistance tuned for inductive ignitions

Is this coil compatible with my ignition system?

The Flame-Thrower 40011 is built to perform with PerTronix Ignitor modules but is also broadly compatible with most inductive distributor setups, including conventional points and many electronic distributors. Verify primary resistance and mounting requirements to ensure fit and function.

• Optimized for PerTronix Ignitor systems
• Works with most points-style and electronic inductive distributors
• Suitable for 6V and 12V systems due to its 1.5 ohm primary design
• Check physical mounting and terminal layout before installation

What installation and handling steps are essential?

Because the coil is oil-filled, it must be mounted vertically with the electrical terminal facing upward; incorrect orientation can cause oil leakage or internal damage. Follow standard ignition wiring practices and ensure secure ground and supply connections to maintain consistent performance.

• Always mount vertically with terminal up to prevent oil loss
• Use correct high-tension lead and distributor cap connections
• Avoid horizontal or inverted mounting to protect internal components
• Confirm system voltage and grounding before powering up

What durability and performance features can I expect on the street?

The oil-filled canister construction improves heat dissipation and supports continuous spark delivery during normal street operation. The round canister shape and sealed design offer dependable performance and resistance to typical under-hood conditions.

• Oil-filled housing aids thermal management for steady operation
• Round canister form supports even spark distribution
• Designed for reliable everyday driving conditions
• Black finish resists grime and complements engine bay styling

Who is this for: The PerTronix Flame-Thrower 40011 is aimed at classic car owners, hot-rodders, and anyone replacing a weak factory coil who wants a straightforward high-output upgrade. It’s particularly useful for vehicles converted to electronic ignition or for those seeking improved spark energy without redesigning their ignition system. Mechanics and hobbyists should ensure vertical mounting and verify compatibility with their distributor and electrical system before installation.