Blaster Coil, High Vibration, .7 Ohm, 45000 Volts, Epoxy

OVERVIEW

When you''re pushing your air-cooled Volkswagen to the limitwhether it''s screaming across the dunes in a sand rail or navigating the rough terrain of a Baja trailvibration is the silent killer of electrical components. Standard oil-filled ignition coils are prone to internal failure when subjected to high-frequency shaking because the internal windings can move, eventually shorting out or leaking. The MSD Blaster High Vibration Coil (MSD8222) is the definitive solution to this problem. Engineered specifically for harsh environments, this coil features a sturdy metal housing that is completely potted with a premium-grade epoxy. This epoxy resin encases the primary and secondary windings, locking them into a solid block that is virtually impervious to the jarring impacts and relentless vibrations common in off-road racing and high-performance street applications.

Beyond its legendary durability, this Blaster Coil delivers the massive spark energy required to maximize the power of your VW engine. With a secondary voltage output of up to 45,000 volts and a primary resistance of 0.7 Ohms, it provides a longer, hotter spark duration that ensures complete combustion even under high cylinder pressures. This translates to crisper throttle response, a smoother idle, and more reliable high-RPM performance. Whether you are running a high-compression stroker motor or a stock 1600cc daily driver that demands the best reliability, this epoxy-potted powerhouse ensures that your ignition system never misses a beat, even when the trail gets punishing. It is the ultimate insurance policy for any enthusiast who refuses to let a failed coil leave them stranded in the middle of nowhere.

FITMENT

This high-vibration coil is designed for 12-volt systems and is a universal performance upgrade for the following air-cooled Volkswagen models and custom builds:

• VW Beetle (Type 1): 1967-1977 (Sedan and Convertible)
• VW Super Beetle: 1971-1979
• VW Karmann Ghia: 1967-1974
• VW Bus (Type 2): 1967-1979 (Bay Window and Split Window 12V conversions)
• VW Type 3 (Squareback, Fastback, Notchback): 1967-1973
• VW Thing (Type 181): 1973-1974
• Custom Off-Road: Sand Rails, Dune Buggies, Manx-style buggies, and Baja Bugs
• Engine Compatibility: Optimized for use with MSD 6-Series Ignition Boxes and high-performance electronic distributors.

SPECS

• Product Brand: MSD Ignition
• Part Number: 8222
• Primary Resistance: 0.7 Ohms
• Secondary Resistance: 4.5K Ohms
• Maximum Voltage: 45,000 Volts
• Inductance: 8.0 mH
• Turns Ratio: 100:1
• Peak Current: 140 mA
• Spark Duration: 350 uS
• Internal Construction: Epoxy Potted (No oil to leak)
• Housing Material: Heavy-duty Metal
• Color: Signature MSD Red
• Terminal Type: Socket (Standard VW style)

PRO TIPS FROM THE SHOP

1. Mounting Orientation Flexibility

One of the biggest advantages of the MSD Epoxy-Potted High Vibration Coil over traditional oil-filled coils is its mounting versatility. Because the internals are encased in solid epoxy rather than liquid oil, you can mount this coil in any positionsideways, upside down, or at an anglewithout worrying about internal hot spots or fluid leaks. In a cramped VW engine bay or a custom sand rail chassis, this allows you to tuck the coil away from heat sources or mount it directly to the fan shroud without risk of failure. Just ensure the mounting bracket is tight, as the coil is slightly heavier than a standard unit due to the dense epoxy filling.

2. Understanding Primary Resistance and Ignition Compatibility

At 0.7 Ohms of primary resistance, this coil is a "pro-level" component. If you are running a traditional points-and-condenser ignition system, you MUST use a ballast resistor to prevent the points from burning up prematurely. However, this coil truly shines when paired with a Capacitive Discharge (CD) ignition box like the MSD 6AL or a high-output electronic ignition module. The low resistance allows for faster saturation, which is why it can produce 45,000 volts so consistently. Always double-check your ignition module''s requirements; if you''re running a standard electronic drop-in kit, verify if it can handle a sub-1.0 Ohm coil to ensure long-term reliability.

3. Optimizing Your Spark Plug Gap

When upgrading to a 45,000-volt coil like the MSD8222, you aren''t just getting more reliability; you''re getting more potential spark energy. To take full advantage of this, we recommend experimenting with your spark plug gap. While a stock VW engine might call for a .025" gap, the extra voltage of the Blaster Coil can often jump a wider gap, such as .035" or even .040" in some performance applications. A wider gap creates a larger spark kernel, which can lead to a more complete burn of the air-fuel mixture. Start with a modest increase and monitor your engine''s performance; if you experience high-RPM blow-out, close the gap slightly until the engine pulls cleanly to the redline.