For full bred drag race engines running high boost pressures from turbos, blowers or nitrous MSD offers a Higher Output version of the DIS Ignition Control. The DIS-4 Plus HO Ignition produces an incredible 170 millijoules of spark energy with 470 primary volts. This increased output will light up fuel mixtures even under extreme cylinder pressures. Your late model distributorless ignition system will never be the same! The capacitive discharge ignitions feature multi-channel capability, complemented with multiple sparks, two rev limiters, and a timing control. These DIS ignitions are engineered with the latest in digital science, including power MOSFET technology and efficient IGBT coil drivers. They're managed by a 15 MHz micro-controller for extremely fast compensations and decisions. In the end, this creates incredibly accurate spark delivery, rev limiting, and timing functions. Throttle response and mid-range pull are also improved, due to a series of powerful multiple sparks that last for 20 degrees of crankshaft rotation. There is a two-step rev limiter, which gives you one limit to set for holeshots and another for top-end performance. For engines using nitrous or extremely high cylinder pressures, you can also program a high-speed retard after the engine hits total timing. Both of these features are easy to adjust with the new built-in rotary dials. They also feature an ignition interrupt that will prevent the engine from starting by disabling the output to the coil, a retard feature that retards the timing at the top end to prevent detonation, and an LED monitor that will alert you of a low supply of voltage or faulty input signals. Also, there is now a true step retard that can be activated through your nitrous solenoid wiring.

Features:

* Ignition Box Output: Capacitive discharge

* Application: Drag Racing, Racing

* Circuitry: Digital

* Rev Limiter: Yes

* Timing Retard: One-stage

* Data Acquisition: No

* CD Voltage Output to Coil: 470 V

* Current Draw: 10 amps at 10,000 rpm

* Spark Output (millijoules): 170 Millijoules

* Minimum Operating Voltage: 12 V

* Maximum Operating Voltage: 18 V

* Length (in): 9.5"

* Height (in): 4.5"

* Width (in): 2.2"

* Ignition Box Color: Red

* Coil Included: No

* Voltage Required: 10-18 Volts, Negative Ground

* Spark Series Duration: 20 degree Crankshaft Rotation

* Quantity: Sold individually

* Two adjustable Rev Limits

* Diagnostic LED

* Adjustable retard stage

* Ignition Interrupt Circuit

***Product images may differ from actual product appearance***