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DIS-4 Plus HO digital ignitions are higher-output versions of the DIS ignition controls from MSD. They're designed for full race engines running high boost pressures from turbos, blowers, or nitrous. Their increased output will light up fuel mixtures even under these 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! The DIS-4 HO Plus digital ignitions are designed for 6 or 8-cylinder engines with three or four coil packs.
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$1,199.95
MSD MC-4 programmable ignition controls for motorcycles combine multiple spark discharge and digital computer accuracy into one compact ignition system, giving you the best of both worlds. You'll be able to program the MC-4s at the track, on the dyno, or wherever, with or without a computer! The supplied Pro-Data plus software gives you just what you have been waiting for--the ability to program ignition timing curves to suit your engine's needs. These MC-4 ignition boxes are for use with single or dual spark plugs per cylinder, and are 1, 2, or 4-cylinder selectable. Features include: * Computer interface for easy programming * 0-25 degree start retard * Mapable run timing curve * Launch ramp delay by time 0-2.5 seconds * 3-step retards by rpm or switch * 0-2.50 second step retard off delay for precise nitrous control * Progressive timing retard by time for progressive NOS * Launch timing curve to prevent tire slippage * Individual cylinder timing when optional cam sync sensor is used * Gear retard--retard a different amount for each gear * Shift kill feature with programmable delays 20-99 milliseconds * Shift kill modes for manual, auto 1, 2, and auto 1, 2, 3 * Optional boost retard curve when used with an external MAP sensor for turbo applications (2-45 psi) * Built-in rpm-activated window switch--turn "on" any device up to 3 amps at any rpm, then back off at a different rpm * Sequential shift light--turn on an optional shift light at a different rpm for each gear * Sequential shifter turns any air shifter into a fully automatic shifter (3 amps max) * Tach output wire for tachometers or data recorders * Monitor mode for easy setup or 3-step switches
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$1,599.95
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