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MSD Ignition 8251 - MSD HVC Ignition Coils

MSD Ignition 8251 - MSD HVC Ignition Coils

MSD Ignition#121-8251

Pro Power HVC Coil

MSD Ignition 8251 - MSD HVC Ignition Coils Details

Pro Power HVC Coils

The Pro Power HVC coil is designed for racing applications with an MSD 7 or 8 Series ignition control.

Coil Specs:

  • Turns ratio: 85:1
  • Primary resistance: .04 OHMs
  • Secondary resistance: 86 OHMs
  • Inductance: 1 mH
  • Maximum voltage: 45,000 Volts (Tested with 7AL-2 Ignition)
  • Peak current: 1.1 Amp
  • Spark duration: 150 uS

    Features:

  • Efficient E-core winding design produces more voltage and current
  • 85:1 turns ratio and lower primary resistance produce high voltage output
  • Windings are encased in red epoxy and secured with extruded brackets
  • Spark plug style terminal and threaded brass primary studs
  • Supplied with rubber shock mounts

  • MSD Ignition 8251 - MSD HVC Ignition Coils

    Coils have always had to compromise voltage output against current output. More voltage increases the initial ionization of the spark plug gap, but lowers the amount of current, or heat, that follows across the plug gap. When a coil is designed to produce more current, the voltage output generally suffers which taxes the ease of ionizing the gap.

    MSD HVC Coils are designed to produce maximum voltage and energy! To accomplish this combination of high voltage and current, MSD uses an E-core winding design. This is a very efficient design where less loss occurs during the transfer of electricity due to the closed core of the coil. Another benefit is that the coils run extremely cool, even at high racing RPM, thanks to the efficient design and huge laminations.

    The Pro Power HVC II Coil is built completely in-house so engineers have exclusive control over performance and qual­ity. The coil utilizes an iron U-Core with segmented bobbin for improved voltage distribution. The bobbin is molded from Dupont Rynite FR946 material which has incredible dielectric capabilities at high temperatures. MSD also incorporated a cutting edge winding material that has improved insulation and can endure extreme volt­ages. Together, these materials create a durable coil with incredible voltage capabilities, lightning quick rise time, and lengthy spark duration. The housing, also molded from Rynite material, features wide-spaced brass primary terminals and well-protected secondary tower for increased spark isolation. The housing is completely potted with an epoxy compound for vibration resistance and installs with sturdy vibration mounts.



    JEGS Easy Kits are designed by JEGS professionals so you get all the parts you need. For small or big block Chevy, Coil Kits include a Blaster HVC Coil and JEGS Head Mount Coil Bracket.

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