![]() No billet pump housings.ĭivisions limited to P8600 injection pump are: Super Farm and Hot Farm. P8600 Series Pump: For classes limited to maximum size injection pump of a P8600 series, pump housing (main pump body) dimensions not to exceed 3.175” wide X 10.475” long X 8.665” tall (+ or –. Pump will be held to OEM centerline of fuel rack to top of housing and centerline of camshaft to top of housing and OEM plunger bore centerline.ĭivisions limited to P7100 injection pump are: Light Pro Stock, Limited Pro Stock, Pro Farm, and Light Limited Super Stock. P7100 Series Pump: For classes limited to maximum size injection pump of P7100 series, pump housing (main pump body) dimensions not to exceed 2-5/8” wide X 9-9/16” long X 8-3/16” tall. 33 and 34 – added Or, a billet steel cross/cage incorporated into the exhaust outlet supplied by the turbocharger manufacture. ![]() The NTPA steel stamp will no longer be acceptable as a replacement for SFI decal after Jan 1, 2024.Įxhaust rule 7, pg. steel, titanium or aluminum must display a current SFI sticker with an expiration date affixed by the manufacture. Rule i updated: Starting all SFI bellhousings regardless of material i.e. replaced with: Bellhousing must be mounted with grade 8 studs or bolts per manufacturer’s bolt pattern for motor and bellhousing. Socket head bolts allowed only for clearance problems. ![]() replaced with: Bellhousing must be mounted as SFI certified by manufacturer with grade 8 studs or bolts that can be identified as grade 8. NTPA Director of Technical more information and pictures of acceptable ways to fix the diagonal bracing, visit the NTPA’s tech page using this link: A copy of any SFI standard can be obtained by contacting SFI directly at 85 or follow the following link to order, Ī copy of NTPA Rollcage Mounting Standards can be obtained by contacting NTPA Technical Services. NTPA Technical Services recommends that competitors contact their chassis / rollcage manufacturer for more details regarding any corrective action necessary. 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. 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.Īny SFI 47.3 rollcage that is in violation of the issues described will have until Jto complete the repairs in order to compete during the 2023 season. 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. ![]() 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. 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.Therefore, the WPI Board of Directors has determined the following corrective action is necessary. 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. 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.
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