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"Over 40 Years As The Leader In H.O. Racing Competition"
- Latest news -
7/18/2025
HOPRA has approved the following parts for 2026:
Viper V3 Chassis
Wizzard T-Jet Top plate rev2 for Vintage T-jets
V3 Level 4 Tractions - Part #11024
V3 Level 10 Tractions - Part #11056
Motor magnets remain under extensive review. The process for defining a new maximum gauss limit continues, with feedback being carefully considered based on historical testing methods. Expect a mid-August update.
2025 Post Nationals update:
Celebrating Milestones, Advancing Innovation, and Honoring Tradition at the 50th HOPRA Nationals
🏁 Record-Breaking 50th National Event! The 50th H.O. scale National Event has officially gone down in history as the largest organized H.O. race ever in HOPRA — and it was nothing short of spectacular. Huge thanks to everyone who attended and competed! From first-time racers to veterans from every past Nationals—including attendees from the very first HOPRA Nationals—the atmosphere was electric with legacy and excitement. Founder Carl Dreher made a special appearance as the Grand Marshal of the Vintage T-Jet main event, bringing decades of passion full circle.
📦 Carl’s Historic Auction & St. Jude’s Donation - HO slot car treasures from Carl Dreher’s personal collection were auctioned off, raising an astounding $2,643. Carl generously matched this donation, resulting in a total of $5,286 contributed to St. Jude’s Hospital. Bravo to all who participated and supported—your generosity made a real impact!
🎉 Thanks to All Sponsors - A special shoutout to our manufacturing partners and sponsors who helped make this historic event possible. For full results and event recaps, visit the website menu.
🛠️ Tech Review & Rulebook Updates - The HOPRA Senate has reviewed new part submissions from Viper and Wizzard, including:
Viper V3 Chassis, V3 L4 & L10 Motor and Tractions
Wizzard WizzJet Top Plate V2
Voting is underway for these components, excluding motor magnets, which remain under extensive review. The process for defining a new maximum gauss limit continues, with feedback being carefully considered based on historical testing methods. Expect a mid-August update.
⏳ Pending Approvals - Currently, the V3 Motors (L10 & L4) have not yet been approved, with decisions expected by October 15th. For updates or questions, reach out to Kris K or Don A.
📘 The 2026 Rulebook will include detailed clarification of magnet method and testing procedures.
👥 Leadership Updates & Looking Ahead - HOPRA has named a new Membership and Information Director. Long-time members Alex and Anna will transition into these roles. We anticipates no delays in operations, and new initiatives are underway to increase transparency and guide HOPRA into its next half-century of racing innovation.
🎯 Stay tuned—big things are on the track ahead.
10/21/24
After extensive discussions and feedback on the process for testing motor magnets and the historical locations used for these tests, it has been decided to maintain the current testing methods and maximum gauss limits.
Since 2016, following discussions in 2015, magnets have consistently been tested in the same location. However, the description of the test location in the rulebook may be perceived as not matching the historical test site. To ensure fairness, the current approval process and testing method will remain unchanged, preserving the balance of performance in popular entry-level national competition classes such as Spec Racer and Spec Jet.
A vote was conducted on three magnet options. The Viper Pro 4 SR V1–B (22816) magnets were approved, while the Viper V3 (11315) and 2024 RPMS magnets were rejected for use in the 2025 Nationals. See manufactures website for more information.
Efforts are ongoing to improve the process for setting new magnet limits. Teams are working to develop a reliable, repeatable testing method that will be accessible to all racers. For clarity, the 2025 rulebook will outline how magnet testing has been enforced since 2015. Additionally, a video tutorial demonstrating how magnets are measured will be provided to enhance transparency.
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