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2014 End of Year Stock, Super Stock Horsepower Adjustments Announced

 

The following Stock/Super Stock horsepower changes were released December 19, 2014 produced by the Automatic Horsepower Factoring System (AHFS). This is the second of two scheduled horsepower adjustments for this year. All changes are effective January 1, 2015. It should be noted that these changes include only results produced by the AHFS, and do not include written letters or requests. Those changes are listed separately.

        The AHFS is a program based on actual run data compiled from all available runs at NHRA national events. The data-based format provides the ability to calculate average performances for any class and/or engine combination in Stock and Super Stock. The trigger point for the system is 1.00-second or more under the respective index, and must be produced on two different occasions. Engine-combination averages and class averages are then computed and analyzed to determine if a change is warranted. The amount of change is calculated on a stepped percentage basis. Where applicable, adjustments will be effective for the specific car model or body style being evaluated. An automatic adjustment is instituted outside the two-time a year process when a 1.20 and under run is recorded during any NHRA event.

        Any comments, thoughts, or requests must be sent in writing to: National Hot Rod Association; Technical Department; attn: AHFS; P.O. Box 5555, Glendora, CA 91740; or e-mail, AHFS@nhra.com or bbachelder@nhra.com.

 

 

                        Stock Horsepower Changes

Complete for 2nd half rating period of 2014

 

 

 

Engine                 OEM          NHRA      New

Make          CID     HP            HP           HP           Years Affected

 

Chev           262      170           191          196          1996 S-10

 

Chev           327      500           512          519          2012 COPO

 

Chev           350      165           198          203          1986 Truck

 

Chev           350      300           341          346          95-96 Vette

 

Chev           350      350           350          358          13-14 COPO manual

 

Chev           350      530           548          555          2014 COPO

 

Chev           396      390           390          399          13-14 COPO manual

 

Chev           427      430           454          465          2014 COPO

 

Chev           427      450           450          456          2014 COPO manual

 

Dodge         242      190           170          174          87-92 Jeep

 

Dodge         345      305           421          427          09-10 Drag Pak

 

Dodge         360      275           339          349          09-10 Drag Pak

 

Mopar          383      280           294          298          1967 Cuda

 

Ford            302      139           150          152          1978 Mustang

 

Ford            302      350           358          363          2014 Cobra Jet

 

Ford            302      525           543          550          2014 Cobra Jet

 

Ford            330      425           505          512          2008 Cobra Jet

 

Ford            330      425           516          528          2012 Cobra Jet

 

Pont            400      330           330          338          1968 Firebird

 

 

 

 

                   Super Stock Horsepower Changes

Complete for 2nd half rating period of 2013

 

 

Engine                 OEM          NHRA     

Make          CID     HP            HP           New HP  Years Affected

 

GM              305      190           235          238          1987 GT FWD

 

GM              305      210-215    256          262          85-86 Camaro Firebird

 

Chev           350      247-250    287          294          90-91 GT FWD

 

Chev           396      325-350    369          374          68-69 Camaro

 

Chev           427      450           450          461          2014 COPO manual

 

Dodge         512      450           450          456          2011 Drag Pak

 

Ford            302      525           525          537          2014 Cobra Jet

 

Ford            330      425           471          482          2008 Cobra Jet

 

Ford            330      435           435          441          2010 GT

 

Ford            330      450           515          527          2012 Cobra Jet

 

Ford            330      510           588          602          2012 Cobra Jet

 

Ford            429      455           455          466          2014 Cobra Jet

 

 

 

                           Super Stock Index Changes

Class          Old Index            New Index

 

SS/ES        12.2                  12.15

 

 

 







RM