The POWERMASTER Difference

• High Heat Transfer Coating - The biggest enemy of alternators is heat. Our thermal management system includes a high temperature dispersant coating that reduces the alternator temperature by 50 degrees or more, thus prolonging its life and enhancing its efficiency.
• One Wire Regulator - This allows for a true one wire hookup with little or no drain on the battery, as compared to the method of converting an OEM regulator by means of a jumper wire.
• High Output to Weight Ratio - Powermaster realizes the importance of light weight, and all our products are designed with this ratio in mind.
• 12 or 16 Volts - Many of our alternators are available in 12 volt or XS Volt models.
• Heavy Duty Regulator - Powermaster uses the latest technology available to provide racers with a regulator they can count on. These regulators are set at a healthy voltage of 14.9 for 12V systems, or are fully adjustable on the XS Volt systems for most batteries.
• Low Drag Bearings - Only low drag, high speed bearings are used to help assure a longer life for the racing alternator.
• Proof of Performance Tag - Each Powermaster alternator is dynamically tested under various loads at variable speeds, and a "Proof of Performance" tag is attached.

Proof of Performance Tag

The "Proof of Performance" tag has been a feature of Powermaster products for years. This is a tag or printout of the performance results for this unit as it went across the dyno. This tag has been signed and dated, showing who inspected the unit and when.

For alternators, these tags show the output at idle, and the output at highway speed. (Technically, the tag shows 2400 alternator RPM and 6000 alternator RPM, or typically 800 engine RPM and 2000 engine RPM with a standard 3:1 pulley ratio). The alternator's set point shown on the tag is the high limit of the internal voltage regulator, and this is the level the alternator is trying to maintain in the electrical system. As loads are applied, the voltage level drops from this point. Therefore, the load amperages are expressed as so many amps at idle at a particular voltage. Powermaster uses 13.2V as the low limit for dyno testing because stressing the alternator beyond this point is not meaningful.

All Powermaster starters are dyno tested and must meet 60 different parameters, including a minimum torque output. For starters, this proof of performance tag is actually a printout. The main pieces of information that are useful to the consumer are the torque at maximum power, the amp draw, and the kilowatts. The 'torque at maximum power' is the torque that the starter is comfortable producing. It can produce more, but efficiency is sacrificed after this peak in the output curve. For the consumer, it is best to get a starter with the highest possible number here.