NO LONGER AVAILABLE HKS DLI Twin Power Ignition SUPRA 7M, 1J, 2J DISCONTINUED
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The Twin Power Ignition Amplifier is an easy-to-install ignition upgrade that continuously monitors the charge condition of the coil to allow the system to recharge to its maximum capacity without overcharging. The Twin Power provides optimum spark duration and voltage output resulting in crisper throttle response & more horsepower. it is a combination of CDI (Capacitive Discharge Igntion) and Transistor ignition in one package.
The CDI segment is effective at producing high voltage, but only for a short time period, like most performance igntions on the market. Therefore, the Transistor segment controls current to the coil (impedance matching circuit) & promotes a longer spark duration. The combination of the CDI & Transistor system creates higher RPM horsepower & lower RPM throttle response.
So what does the above paragraph mean in English? Good question, but here is the answer: In high boosted turbocharged engines the cylinder pressures go up very high and often times "blow-out" the spark created by a spark plug and then you have an engine miss as the spark plug and ignition system are fighting hard to keep up with all that boost you have.
The factory ignition system does a great job at standard boost levels, but once you crank up the boost you can have high speed missing problems. Imagine a light switch being turned on and off at a very fast and consistent rate. For that fixed time that the light switch is on you have light.
The factory ignition system provides a spark just like this, ON for a very short period of time and this is not adjustable. It has a dwell of 2.2ms like the factory coils, but when you add the DLI it ACTUALLY FIRES A SECOND TIME (hence the name Twin-Power for two firings).
Although the stock igniter clamps at 2.2MS, the DLI fires a second time per ignition event ("Twin Power"), increasing the net power to the plug. The factory coil fires once.
The DLI-2 is not designed to mask or hide other ignition issues in the engine (coil packs, connectors, wiring, poor plug choice, etc), it is designed as an enhancement for an already robust electrical system. It does just that, enhance an already robust system.
If you are running an AEM V1, then this is a must.
Great product and used on many high HP Supra's the world-over. You will receive the Twin Power ignition box, harness and instructions.