
THE AUTO BUILDER
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The Cars That Defined HPX 2026
HPX 2026 in Charlotte established its identity on the show floor rather than through announcements or spectacle. At the center of that approach was the inaugural HPX Shop Car Challenge, presented by Killer Performance, which brought together five curated shop builds representing some of the most current and capable work in the performance aftermarket. Positioned as a focused, invite-only feature within the High Performance Expo, the display highlighted craftsmanship, execution, and shop identity through the cars themselves rather than presentation alone.

A Century of Kustom Cool: The GNRS Tribute to George Barris
The mastermind who turned wild ideas into rolling legends. At the 2025 Grand National Roadster Show, organizers pulled out all the stops to honor what would have been his 100th birthday, showcasing some of his most legendary and jaw-dropping creations.

Trucks of the Grand National Roadster Show 2025
Hot rodders used to scoff at the idea of trucks stealing the show. Now? They’re the stars. The 2025 Grand National Roadster Show (GNRS) proved that trucks aren’t just workhorses anymore—they’re rolling showcases of power, design, and straight-up cool factor. Whether slammed to the pavement or built for full-throttle performance, trucks have carved out their own space in the custom scene, and this year’s GNRS made it clear: the truck takeover is real.
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MAINTAINING YOUR BATTERY
Increase the Life of Your Battery With a Maintenance Charger
Author
Garry McWhirter
Story and Photography
There is nothing more aggravating than having a dead battery, and it always occurs at the least opportune times. Our street rods are often stored or sit for periods of time. How many times have you decided the weather was perfect for an afternoon cruise and had a problem cranking the car? Better yet, how many times has the battery just died while you were out on the road? We often forget that there are small drains on the battery, such as clock and radio memory. These should not have much effect upon a battery, but we all know differently. It seems that batteries do not seem to last as long as they used to, but there is a reason for that. It is not that batteries are no longer made as well as they once were; it is that we do not maintain them as we should. Now the good folks at PulseTech have come to our rescue.
First, we must understand why the battery should be maintained. The reason why so many batteries seem to die at the worst possible moment is because they can no longer accept or release energy. The cause is an age-old problem called sulfation buildup. As your battery gets older or sits unused for periods of time, lead sulfates on the battery plates enlarge to the point that they can no longer accept a charge or release its stored energy. This buildup is the cause of over 80 percent of all battery failures.
Since it is not feasible to open up your battery to remove this sulfate buildup, PulseTech has developed a system that will help to prevent the buildup and restore the plates. Their ReNew-IT Pulse Technology has been proven by researchers to prevent sulfation buildup on all types of lead-acid batteries. Using a unique ion-transfer process that sends a pulsating DC current into the battery that prevents sulfation buildup. It will also renew a dead battery that suffers from sulfation buildup by removing existing deposits from the plates and enabling them to return to the battery acid as active electrolytes. With the plates clean, your battery will work harder and last longer than ever before. The PulseTech Xtreme Charge Maintenance Charger XC100 incorporates this technology into a compact package that is packed full of features to help maintain your battery.
When the XC100 charger is connected to the battery, it will first perform a test to evaluate the current condition of the battery. If the charger registers less than 7 volts of power on the battery, it will tell you that the battery is bad and will not perform. The charger illuminates a red “bad battery” LED indicator. Remember, this is a maintenance charger, not a quick-start charger. The charger will activate its pulse charging system if the battery can be recharged. A row of green LEDs lights sequentially as the charging occurs. The charger also continuously conducts tests on the battery to evaluate its condition. The state of charge will be indicated at 25, 50, 75 and 100 percent as the pulse charge continues. Once the battery reaches a 100-percent charge, the charger continues to monitor the condition of the battery. It will not overcharge the battery. If it detects a drop in the battery, it will return to charging, thus maintaining the battery at full charge.
Using a maintenance charger makes good sense if you store your street rod for any period of time. It can prevent unwanted and unexpected battery failures that occur after winter storage. The XC100 can also bring a failing battery back to life and help it last longer.
ARTICLE SOURCES
PulseTech Products Corporation
1100 S. Kimball Ave.
Southlake, TX 76092
800/580-7554
www.pulsetech.net









