Powermaster’s Small Frame HPR Alternators Hit The Dirt Market

Alternators on dirt track cars have always been second-guessed. For many, it is a “Do I” or “Don’t I” proposition. The last thing many of the performance-minded racers want to do is hang another belt off of the crankshaft to suck power. For others, it is simply a matter of energy needs.

Even if you are running with the top of the line Optima battery, a long race with many cautions can drain the battery and sideline you if your system isn’t equipped with an alternator. Especially if you have a great ignition system with a powerful ignition box.

Ignition Boxes And Low Volts

These CD-type ignition boxes get a little angry on low voltage. Add in some lighted gauges and all a sudden you need a way to generate some current to keep everything functioning at their peak.

Everyone has heard the story about a “friend” that bought a Sears battery in the late 1970s and has raced every weekend without an alternator for the past 40-years with no problems.

We’ve never met that guy, but we hear the stories all the time. So what is a conscientious racer supposed to do?

Powermaster Performance High Output HPR Alternators

Powermaster Performance has supported oval track racers in their quest for a lightweight, efficiently-designed, alternator that is V-belt driven with reduced power consumption. Their latest release is a small frame, high power alternator that pumps out plenty of energy, even during low rpm and idle speeds under yellow flag laps.

Powermaster’s high output HPR alternators are helping modern muscle machines keep up with fuel pumps, electric fans, and overworked ECUs.

Their engineers have recently incorporated the efficient charging technology of the larger, late model line of HPR alternators into the popular small frame housings (such as the 10SI, 12si, CS130 and AD230) that are used in many purpose-built racecars.  

Small Frame HPR Details

The Small Frame HPRs produce over 175 amps at racing RPMs, plenty to keep all of your electronics working and the battery charged. This highly efficient technology consumes less engine power while creating higher current across the entire rpm range. When it comes to idle and low-speed rpm, the Powermaster crew reports on seeing over 145 amps!

Each new Small Frame HPR Alternator is designed as a direct replacement for three popular housings; the straight 6.61” mount (shown), an offset left 5.31” mount and a 2” spool mount. Each alternator features a one-wire connection and is available with a V-belt or serpentine pulley. Finishes include natural, polished and durable black.

Features And Benefits:

  • Idle with 145+ amps and over 175 at top-end
  • Efficient design and components reduce power consumption
  • Exclusive Powermaster design and housing
  • One wire connection for easy installation
  • Available with a V-belt or serpentine pulley

For more information on these small frame HPR alternators or the other fine products at Powermaster Performance, visit them online at www.powermastermotorsports.com.

About the author

Bobby Kimbrough

Bobby grew up in the heart of Illinois, becoming an avid dirt track race fan which has developed into a life long passion. Taking a break from the Midwest dirt tracks to fight evil doers in the world, he completed a full 21 year career in the Marine Corps.
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