Attention Competitors with a Modified Mini

It has come to the attention of NTPA Technical Services that certain variations in construction of the SFI 47.3 rollcage do not meet standards set forth by SFI or do not meet NTPA roll cage mounting guidelines. The SFI 47.3 standard for vehicles that compete at 2,000 lbs., namely Modified Mini division, has been in place since 1998 and the specifications for construction and mounting of the rollcage have never changed.

Therefore, the WPI Board of Directors has determined the following corrective action is necessary.

  1.        All 47.3 rollcages must have a diagonal bar installed between the front and rear vertical tube on each side of the rollcage as specified. This tube may currently be installed in the horizontal position and will need to be removed and a new tube fitted diagonally in the correct location according to the SFI specifications.
  2.        NTPA rollcage mounting standards for both tube type or channel type chassis require a 1/4-inch x 3-inch steel web plate be properly welded at base of rollcage on each side between front and rear vertical tubes as well as across the rear of the rollcage. The flat, 1/4-inch x 3-inch steel plate needs to be installed between each vertical tube all the way around the rollcage, connecting all vertical tubes together.

Any SFI 47.3 rollcage that is in violation of the issues described will have until June 01, 2023 to complete the repairs in order to compete during the 2023 season. Once the roll cage has been updated to meet the requirements described, the rollcage will be re-certified by a NTPA Rollcage Inspector at no charge to owner and a new 5-year certification sticker will be installed.

NTPA Technical Services recommends that competitors contact their chassis / rollcage manufacturer for more details regarding any corrective action necessary. A copy of any SFI standard can be obtained by contacting SFI directly at 858-451-8868 or follow the following link to order, https://sfifoundation.com/tractor-pulling/
A copy of NTPA Rollcage Mounting Standards can be obtained by contacting NTPA Technical Services.

Marvin Epperson
NTPA Director of Technical Services
317-852-0630
marvin@ntpapull.com

You can reach out to your chassis builder if needed: Here are three which have agreed to help in expediting this process for you and have the SFI 47.3 Spec in their possession. 

TRB Machine | Zeeland, MI
todd@trbmachine.com
616-875-7673

GMS Manufacturing & Machine | Hamilton, OH
gmshiperformance@gmail.com
513-756-9900

Modern Machine & Tool | Van Buren, IN
modernmachineandtool@yahoo.com
765-934-3110

Examples of acceptable ways to fix the diagonal brace.

   

Examples of acceptable ways to fix the webbing.

   

  

 

Webbing must retain 65% material of the 1/4-inch X 3-inch flat bar when scalloping for weight; which means retaining 1-inch material at any edge.

 

About the National Tractor Pullers Association

The NTPA is the sport’s oldest and most respected truck and tractor pulling sanctioning organization. Governed by a board of directors, the NTPA is managed by World Pulling International (WPI), an independently owned entity. Headquartered in Columbus, Ohio, the NTPA provides rules and regulations and the infrastructures required for organizations throughout the country to arrange truck and tractor pulls.

The 2024 NTPA Championship Pulling Circuit is sponsored in part by Case IH, Beck’s Hybrids, WIX Filters, Hot Shot’s Secret, Enderle Fuel Injection, MAC Trailer, O’Reilly Auto Parts, Cow Tales, Mitas Tires, Cen-Pe-Co Lubricants, Ag Protect 1, U.S. Army, and STOP-FYRE.

Grand National Divisional Sponsors include New Fields Ag (Super Stock Diesel), Hi Torque (Super Farm), Yoder Popcorn (Pro Stock), CM Pulling Tires (Two Wheel Drive), Doctor Preload (Super Semi), and GMS Manufacturing & Machine (Light Modified). Region III is sponsorted by TerraMax. Region IV is sponsored by Pro Puller Tires. Point fund sponsors include the National Tractor Pulling Championships in Bowling Green, Ohio; the Budweiser Dairyland Super Nationals in Tomah, Wisconsin; Heritage Iron Magazine; Midwest Wheel Inc.; and Riverside Engine Inc.

Watch “NTPA Championship Pulling” presented by Case IH: Tuesdays at 6:30 p.m. Eastern/5:30 p.m. Central. Encore performances appear on Mondays at 12:30 a.m. and 6 a.m. Eastern. RFD-TV is available on satellite through DirecTV (345), Dish Network (231), and AT&T (568) along with Spectrum/Time Warner, Brighthouse, Comcast, Charter, Suddenlink, Cox, and other cable providers. Check your current provider for details or visit the channel finder at www.rfdtv.com.

Established in 2021, Full Pull Entertainment is a trailblazing force in the world of truck and tractor pulling. The platform offers detailed data and engaging content, catering to both new and seasoned fans, guiding them through the excitement of the betting process. With strong industry relationships, Full Pull is not only redefining fan engagement but also propelling a 75-year-old sports phenomenon into the 21st century with a dynamic blend of tradition and innovation. For more information about Full Pull, to watch the first stream, or to sign up for the free-to-play contests, please visit FullPull.us.

Visit NTPA.tv to purchase access to past and current “NTPA CP” episodes and archived video of live events up to 2023. Purchase the package in your browser at NTPA.tv and watch there or via the NTPA.tv app on popular smart tv platforms including Roku, AppleTV, and AndroidTV and on both Apple iOS and Android mobile devices.

Wear it loud! The ShopNTPA.com store has pulling apparel in fresh, new designs for fans of all ages and sizes. Hats, event shirts, hoodies, pins, and patches all sport the iconic NTPA shield that represents excellence in premier-level pulling. Event, TV series, and special DVDs let you watch pulling action on your schedule. See it all at ShopNTPA.com.

For more information about the NTPA, visit our website, www.NTPAPULL.com, follow us on social media at our Facebook page (ntpapulling)Twitter (@NTPApull)YouTube (NTPApull), Instagram (ntpa), and TikTok (@nationaltractorpulling) or call the NTPA office at 614.436.1761.

Call me back