Pacific Division Event Information

As the result of runs under the Automatic Horsepower Factoring System (AHFS) 1.20-second under policy at the NHRA Division 1 event, the following changes have been made. The horsepower rating for 00-04 Chevrolet Corvette, entries with the 346 cubic inch engine and a factory rating of 345 currently rated at 350, has been increased by three horsepower, to 353 horsepower: for Stock Eliminator automatic. The horsepower rating for 67-68 Chevrolet Camaro, entries with the 327 c

August 10, 2026 The NHRA Technical Department recently made changes to the blueprint specifications. Mopar 64-65 426/400,425 added carburetor information. Mopar 1968 426/425 added carburetor information.

August 8, 2026 The NHRA Technical Department has released additional 2026 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2026 NHRA Rulebook Amendments can be found on NHRARacer.com under Tech, then Rules. These amendments include the following changes…See the latest 2026 Rulebook Amendments document for complete details. Section 5B, Advanced ET – Beginning January 1, 2028, seven-point driver res

August 6, 2026 The NHRA Technical Department recently made changes to the blueprint specifications. Mopar 63-69 383/280 - 335 added alternate intake manifold

August 5, 2026 The NHRA Technical Department recently made changes to the blueprint specifications. AMC 68-69 390/315 added alternate connecting rod length

July 21, 2026 The NHRA Technical Department recently made changes to the Class Guide, due to clerical errors as follows. Mopar 1965 426 425/450 change to 426 425/454 Stock Auto

July 21, 2026 The NHRA Technical Department recently made changes to the blueprint specifications. Mopar 64-65 426/425 added alternate manifold casting number

Based on feedback received from Top Dragster and Top Sportsman competitors across the country regarding field sizes, qualifying, and maximum dial-ins, NHRA will implement the following changes for the 2027 season. Field Sizes Field sizes will remain consistent with historical precedent, with each Division continuing to determine the field size for its LODRS events. For specific information regarding field sizes at individual events, please contact your Division Office or visi

NHRA Updates the Digital Version of the 2026 NHRA Rulebook NHRA has updated the digital version of the 2026 NHRA Rulebook to reflect all rule amendments issued through July 14, 2026. The 2026 NHRA Rulebook can be found in the Rules section of NHRARacer.com.

The NHRA Technical Department has released additional 2026 Rulebook Amendments. Unless otherwise noted in this document, these amendments will become effective immediately. The 2026 NHRA Rulebook Amendments can be found on NHRARacer.com under Tech > Rules. These amendments include the following changes. Please see the latest 2026 Rulebook Amendments document for complete details. Section 18, Funny Car — Throttle Pullback/Return clarification; Electrical Components updated. (R

At the 2026 Super Grip NHRA Thunder Valley Nationals at Bristol Dragway, Chris Bostick had a scale violation resulting in a run disqualification. Bostick’s Q2 run was disqualified. The NHRA disqualified Joe Sorensen from the Lucas Oil Drag Racing Series event at Yellowstone Drag strip for not performing a teardown on his Stock Eliminator entry following a run that resulted in an automatic horsepower adjustment. In addition to being disqualified from the event, Sorensen has

July 6, 2026 The NHRA Technical Department recently made changes to the Class Guide, due to clerical errors as follows. Chev 1969 350 300/293 change to 350 300/294 Camaro Stock Auto

Competition numbers must be displayed on all competition vehicles, as well as any permitted tow vehicles, in accordance with the NHRA Rulebook. Please see the 2026 NHRA Rulebook for the complete set of rules. Section 21, General Regulation, Body: 7, 7:2 - Competition Numbers Driver numbers and class designation letters must be displayed on both side windows and the windshield. Numbers on side windows must be a minimum 4 inches high and 1 1/2 inches wide. Class designation let

June 30, 2026 The NHRA Technical Department recently made changes to the blueprint specifications. Ford 1986 140/84 Added carburetor specifications

6/30/2026 As the result of runs under the Automatic Horsepower Factoring System (AHFS) 1.20-second under policy at the NHRA Division 6 event, the following change has been made. The horsepower rating for 1969 Chevrolet Camaro, entries with the 350 cubic inch engine and a factory rating of 300 currently rated at 291, has been increased by two horsepower, to 293 horsepower: for Stock Eliminator automatic. NHRA's 2026 Automatic Horsepower Factoring System outlines that any

The NHRA Technical Department has released additional 2026 Rulebook Amendments. Unless otherwise noted in the amendment document, these changes are effective immediately. The 2026 NHRA Rulebook Amendments can be found on NHRARacer.com under Tech, then Rules. These amendments include the following change. Please refer to the latest 2026 Rulebook Amendments document for complete details. • Section 6, Pro Mod – Parity update; rear-end gear ratios revised.

The NHRA Technical Department has released additional 2026 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2026 NHRA Rulebook Amendments can be found on NHRARacer.com under Tech, then Rules. These amendments include the following changes…See the latest 2026 Rulebook Amendments document for complete details. Section 18, Funny Car - Throttle Pullback/Return clarification. Electrical Components update

The National Hot Rod Association Competition and Technical Services Departments are pleased to announce a series of rule and policy amendments for Top Dragster and Top Sportsman competition, taking effect for the 2027 season. Developed in collaboration with the Sportsman Racing Advisory Council (SRAC), the changes are intended to strengthen participation and enhance competition within the categories nationwide. Working closely with representatives from all seven divisions, th

The NHRA Technical Department has released additional 2026 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2026 NHRA Rulebook Amendments can be found on NHRARacer.com under Tech, then Rules. These amendments include the following changes…See the latest 2026 Rulebook Amendments document for complete details. Section 7A, Top Sportsman – Beginning January 1, 2027, maximum 7.60-second dial-in (eighth-m

Due to the pending forecast for the Super Grip NHRA Thunder Valley Nationals, we have adjusted the schedule. We understand you may need additional time to evaluate the forecast. To accommodate this, the deadline to withdraw from the event has been extended to 1:00 PM PT on Wednesday, June 10th. If you choose to withdraw, please log into your account at www.nhraeventreg.com and select the withdrawal option for the Super Grip NHRA Thunder Valley Nationals. A credit will be

The NHRA Technical Department has released additional 2026 Rule Amendments. Unless otherwise noted in this document, these additional amendments will come into effect immediately. The 2026 NHRA Rulebook Amendments can be found on NHRARacer.com under Tech, then Rules. These amendments include the following changes…See the latest 2026 Rulebook Amendments document for complete details. · Pro Mod, Section 6 – Parity adjustments o Centrifugal supercharged entries (526 ci

The NHRA Tech Department is reminding participants to check the operation and adjustment of their neutral safety switch as part of their regular safety-system checks. The starter circuit should be active only when the shifter is fully in (P) park or (N) neutral position. Please verify that the starter circuit does not activate in any other gear position. Compliance is mandatory. Thank you for being proactive with your safety checks. We look forward to seeing you at the tra

Based on the FLEXJET NHRA Factory Stock Showdown performance numbers from the 2026 season, the NHRA Technical Department is increasing the supercharger overdrive by changing the upper supercharger pulley for the 2026 Dodge Charger 354 Gen-5 Whipple from 3.750 inches to 3.625 inches. This rule change will go into effect immediately. NHRA reserves the right in the future to make additional rule changes to control performance and maintain parity in the category.