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ULTRA ignition systems

 Nagai electronic ( ultra ) No.9950 M.D.I-DUAL multiple-discharge-dual-spark-ignition systems

 Nagai electronic ( ultra ) No.9950 M.D.I-DUAL multiple-discharge-dual-spark-ignition systems
  •  Nagai electronic ( ultra ) No.9950 M.D.I-DUAL multiple-discharge-dual-spark-ignition systems
  •  Nagai electronic ( ultra ) No.9950 M.D.I-DUAL multiple-discharge-dual-spark-ignition systems
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Nagai electronic ( ULTRA ) No.9950 M.D.I-DUAL multiple-discharge-dual-spark-ignition systems

Ultimate ignition system that pursues the ultimate performance and reliability

Is the successor of MDI NO.9500.

◆ composite multi spark systems
New recruitment in addition to multiple ignition (multiple ignition) inherited from the old model, depending on the low speed and high speed rotation and rotation area controlled two waves, wavelength and ignition spark number 1 ignition in addition to ignition of the two strains of the main and sub "dual spark system". And discharge, in the compound of the main ignition and secondary ignition ignition, that is, 1 ignition is first main spark discharge and 0.5 ms late ( retard ) getting better by supplying sub spark discharge combustion efficiency. This in more than 3000 rpm 4 cylinder 1 ignition while stable discharge of 2 times maximum revs up supply and, in addition to the dual-discharge ignition, multiple discharge 2 times performed at low speed of 3000 rpm or less so and discharge of a total of 4 times, achieved a further long sparks ensure.

◆ low-voltage compensation
Keep spark stability while maintaining the spark time spark stability for loss prevention in difficult historic car Sprint racer of the non-attached and ensure sufficient voltage alternator an the primary side voltage is up to 450 V low voltage of 10 V or the long dual spark up to high revs.

◆ excellent high rpm performance
New development of low loss transformer adopts a luxury material "Permalloy" at its core, complete system more efficient. works up to 10000 rpm (10 A with the 4-cylinder) and supply 450 V 1: side output, while supplying dual-spark in the medium speed range or ignition of one time while minimizing the voltage drop, particularly excellent 6-cylinder and 8-cylinder and 4-cylinder engine.

◆ power-saving, energy-saving design
Realize the thorough development of a high efficiency transformer can be compared to the conventional model oscillators, such as small as possible and significantly reduce a circuit by the newly adopted high temperature for high-performance microcontroller, ignition control complex, stable control and, at the same time to conserve power. New adopting microcomputer control system, including by better ignition controls becomes available in miniature, such as time management to more precisely by a successful Board significant downsizing, another traditional external adapter and realized the space-saving design with built-in all had an adapter unit.
◆ set the vehicle only to harness (optional)
◆ one year long term warranty

■ main specifications of the M.D.I 9,950
-12 V negative ground cars only
-Voltage compensation: 10 ~ 18 V battery voltage between the primary voltage 450 V stable supply
-Maintain primary side voltage 450 V up to high revs multibloc King oscillator development based
-Secondary side output characteristics: secondary-side discharge current one-way system at particular closed circuit coils to best match
-Genuine igniter car to apply (set-only model 9910 for model PPK settings)
● the voltage loss at built-in fuse direct wire method. Safety design input signal only from the normal wiring
-Dimensions: 160 (W) x 98 (H) x 37 mm (D)

Harness, optional accessories orderClick here to


Check and confirm to the vehicle
Ago ordering models fit please make sure your check.
In the fit table maker home page can be checked are compliant to the car.

The questions our contact please.

Nagai electronic website compatibility table

www.nagaidenshi.co.jp/IGNITION/mdi_9950.shtml( Please check from the fits table )

• Links to fit table manufacturer website

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