Pacific Division News

Based on the Holley EFI Factory X performance numbers from the 2024 season the NHRA Technical Department is increasing the supercharger overdrive by changing the upper supercharger pulley for the 2019-2023 Chevrolet COPO from 3.375 inches to 3.250 inches. 2021 Dodge Drag Pak from 3.500 inches to 3.375 inches. 2019 Ford Cobra Jet from 3.500 inches to 3.375 inches aluminum block. 2019 Ford Cobra Jet from 3.750 inches to 3.625 inches iron block. The minimum weight for all combin

NHRA has updated the digital version of the 2024 NHRA Rulebook to reflect all of the rule amendments made through 5/10/2024. The 2024 NHRA Rulebook can be found under the Rules section of NHRARacer.com https://www.nhraracer.com/Files/Tech/2024%20NHRA%20Rulebook.pdf 73032

The NHRA Technical Department has released additional 2024 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2024 NHRA Rulebook Amendments can be found under Tech, then Rules on NHRARacer.com. These amendments include the following changes…See the latest amendments for complete details. Section 1 - Inclusion of new Gambling Policy Section 4, JDRL – Deletion of duplicate wording now contained within t

The NHRA Technical Department has released additional 2024 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2024 NHRA Rulebook Amendments can be found under Tech, then Rules on NHRARacer.com. These amendments include the following changes…See the latest amendments for complete details. Tech Contacts Updated Division Field Offices Contacts Updated Pro Mod: Added Torque Converter paragraph – Includes

The following action has been taken against Bob Tasca III for violating the rules pertaining to modified accepted engine components during Q2 of the NHRA 4-Wide Nationals. Tasca’s Q2 run was disqualified and was fined $5,000. The fine will be dedicated to enhancing the capabilities of the Safety Safari. The fine is appealable. 73017

The following action has been taken against Greg Anderson for violating the rules pertaining to the System Air Pressure Switch during Q3 of the NHRA 4-Wide Nationals. Anderson’s Q3 run was disqualified. Due to the DQ, his round win in the Mission Foods 2Fast2Tasty Challenge was forfeited with Erica Enders being reinstated into the Final round. This infraction also carries a fine of $5000. The fine will be dedicated to enhancing the capabilities of the Safety Safari and is app

April 22, 2024 The NHRA Technical Department recently made changes to the blueprint specifications. Buick 1980 305 155 added alt cylinder head and manifold Chry 09-21 added alt throttle body Olds 1984 305 added bore and stroke 73011

April 22, 2024 The NHRA Technical Department recently made changes to the Class Guide. GM 80-84 305 150-180 separated FWD and RWD corrected horsepower factors 73012

· Friction material of any kind, inside the torque converter, is prohibited when lockup converters are prohibited. All torque converters must be bolted together with grade 8 bolts and must be able to be disassembled for inspection. 73010

April 1, 2024 The NHRA Technical Department recently made changes to the blueprint specifications. Olds 1978 350/160 corrected intake lift 72997

NHRA has updated the digital version of the 2024 NHRA Rulebook to reflect all of the rule amendments made through 3/20/2024. The 2024 NHRA Rulebook can be found under the Rules section of NHRARacer.com 72996

The NHRA Technical Department has released the 17th edition of the 2024 NHRA Hot Rod Heritage Racing Series Rules Supplement. Unless otherwise noted in this document, the additional amendments included in this release will come into effect immediately. The 2024 NHRA Hot Rod Heritage Racing Series Rules Supplement, 17th Release can be found under Tech, then Rules on NHRARacer.com. These amendments include changes to the following sections in Hot Rod Eliminator: Oil Retention

The NHRA Technical Department has released additional 2024 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2024 NHRA Rulebook Amendments can be found under Tech, then Rules on NHRARacer.com. These amendments include the following changes…See the latest amendments for complete details. · Section 5H: Summit ET Electric-Powered Vehicle – Various language updates/clarifications · Section 13

The NHRA Technical Department has released an updated Exhibition Rulebook Supplement. Unless otherwise noted in this document, these changes will come into effect immediately. The Exhibition Rulebook Supplement can be found under the Rules section of NHRARacer.com. This update includes the following changes… Inclusion of new Ford Performance Super Cobra Jet 1800 Exhibition Vehicle SCJ1800 72990

The NHRA Technical Department has released updates to the 2024 Pro Stock Motorcycle EFI Specifications. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2024 NHRA EFI Specifications can be found under Tech, then Rules on NHRARacer.com, then NHRA Product Specifications. These updates include the following changes…See the latest Pro Stock Product Specifications for complete details. · Engine Control Unit: § M

The NHRA Technical Department has released updates to the 2024 Pro Stock Motorcycle accepted fuel list. Unless otherwise noted in this document, this amendments will come into effect immediately. The 2024 NHRA accepted fuel list can be found under Tech, then accepted products on NHRARacer.com. This update includes the following change…See the latest NHRA Accepted Products for complete details. · PSM accepted fuel: § Sunoco SR-18 mandatory 72985

March 18, 2024 The NHRA Technical Department recently made changes to the Class Guide. Ford 2015-2017 Added 302 370 Mustang Coupe Dr GT Ford 2016, 2017, 2019 – Corrected wheelbase from 106.72 to 107.1 72988

March 18, 2024 The NHRA Technical Department recently made changes to the blueprint specifications. Chev 65 396/325 corrected intake castings numbers Chev 67-68 396/325 corrected intake castings numbers Chev 68 396/350 corrected intake casting numbers Chev 66-69 427/385-390 corrected intake castings numbers Add 3931067 to the above intake numbers that were using the 3983948 Q Jet manifold Ford 2011-2012 302 corrected bore size from 3.629 to 3.631 Ford 2015 –

The NHRA Technical Department has released an updated Exhibition Rulebook Supplement. Unless otherwise noted in this document, these changes will come into effect immediately. The Exhibition Rulebook Supplement can be found under the Rules section of NHRARacer.com. This update includes the following changes… Inclusion of new Pingel Top Fuel Motorcycle ruleset. 72984

The NHRA Technical Department has released additional 2024 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2024 NHRA Rulebook Amendments can be found under Tech, then Rules on NHRARacer.com. These amendments include the following changes…See the latest amendments for complete details. Have a Tech Question, page iii – Tech contact for D4 updated. Division Field Offices, page iv – Updated D1 and D4 c