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Factory Super Car Rule Reminder

Posted By: Steve Baur
March 29, 2023 – The NMCA Tech Committee issued today these class rule reminders to all NMCA Factory Super Car Racers. 
 
Drivetrain - AUTOMATIC TRANSMISSION rules include:
Any model transmission, same make as car, with a maximum of three forward speeds. Transmission case must be OEM or aftermarket OEM replica from a standard, automotive application as found in the Official NHRA Stock Car Classification Guide. Aftermarket case must meet SFI Spec. 4.1. NHRA-accepted adapter plates permitted. Modifications to shifting patterns are permitted, provided full shift pattern is retained. Full shift pattern must include park and reverse. Any gear change must occur as a result of an internal function of the transmission or from direct action by the driver. Shifting with the use of pneumatic, electric, hydraulic, etc. is prohibited. Lockup converters of any kind are prohibited. Wires for a trans brake, line lock, starting line enhancer (bump box), wheel speed, driveshaft speed or GPS signal to transmission prohibited. Deepened stock or aftermarket transmission oil pans permitted. Functional neutral safety switch mandatory. Transmission brake prohibited. Starting line staging devices are prohibited.  Tailshaft modifications for bushing replacement, or NHRA-accepted aftermarket tailshaft permitted.  Must be equipped with a transmission shield meeting SFI Spec 4.1. Any car running quicker than 9.99, SFI 29.1 automatic transmission flexplate and SFI 30.1 flexplate shield mandatory. See General Regulations 2:12, 2:14 
Lockup Torque Convertor prohibited.  
 
 
Accepted supercharger Combination Upper and Lower Pullies are limited to:
YEAR          BRAND                           CID/HP           SUPERCHARGER                          UPPER         __ LOWER
2014-2015 Camaro COPO 350                530 HP                       2.9L Whipple                                                 3.250                          8.000        
2016-2018 Camaro COPO 350                580 HP                       2.9L Whipple                                                 3.250                          8.000
2017-2018 Camaro COPO 350                590 HP                       2.9L Whipple                                                 3.125                          8.000
2019-2022 Camaro COPO 350                630 HP                       2.65L Magnuson 32J/34R                          3.125                          8.000
2015 Challenger Drag Pak 354               540 HP                       2.9L Whipple                                                 3.000                          7.950
2021 Challenger Drag Pak 354               630 HP                       3.0L Whipple                                                 3.375                         8.000 
2010 Mustang Cobra Jet 330                  500 HP                       2.9L Whipple                                                 3.970                          8.125
2012 Mustang Cobra Jet 330                  510 HP                       2.9L Whipple                                                 3.970                          8.125
2013 Mustang Cobra Jet 302                  500 HP                       2.9L Whipple                                                 3.500                          8.000
2014 Mustang Cobra Jet 302                  525 HP                       2.9L Whipple                                                 3.375                          8.000
                                                  560 HP                       2.9L Whipple                                                 3.000                          8.000
2016 Mustang Cobra Jet 302                  565 HP                       2.9L Whipple                                                 3.250                          8.000
                                                                   575 HP                       2.9L Whipple                                                 3.250                          8.000
2019 Mustang Cobra Jet 327                  610 HP                       3.0L Whipple                                                 3.500                          6.938 
2019 Mustang Cobra Jet 351                   570 HP                       2.9L Whipple                                                 3.500                          8.000
 
 
Accepted ECU and Firmware are limited to the following and must utilize the RPM limits listed. 
ACCEPTED ECU AND FIRMWARE
MANUFACTURE  PART DESCRIPTION MAKE SOFTWARE FIRMWARE RPM LIMIT
HALTECH NEXUS-R5 CHEVROLET V1.14.1 V1.14.1-Release-1-NMCA-Chevy-10200.nex 10200
BIG STUFF 3 GEN 4 CHEVROLET GEN4-STACK gen4-stack-””-NewAccel_COPO_DPAK 10200
FUELTECH FT450, FT550, FT600 CHEVROLET 4.81  / 4.90 FT450 NMCA 10200RPM
FT550 NMCA 10200RPM
FT600 NMCA 10200RPM
10200
HOLLEY DOMINATOR or HP EFI CHEVROLET V6 BUILD 220 HEFI_06002310_DOCH.EEP 10200
MOTEC M1DOMINATOR or HP EFI50 CHEVROLET   nmcafactorysupercarsfirmware 10200
           
HALTECH NEXUS-R5 DODGE V1.14.1 V1.14.1-Release-1-NMCA-Dodge-10200.nex 10200
BIG STUFF 3 GEN 4 DODGE GEN4-STACK gen4-stack-””-NewAccel_COPO_DPAK 10200
FUELTECH FT450, FT550, FT600 DODGE 4.81  / 4.90 FT450 NMCA 10200RPM
FT550 NMCA 10200RPM
FT600 NMCA 10200RPM 
10200
HOLLEY DOMINATOR or HP EFI DODGE V6 BUILD 220 HEFI_06002310_DOCH.EEP 10200
MOTEC M150 DODGE   nmcafactorysupercarsfirmware 10200
           
HALTECH NEXUS-R5 FORD V1.14.1 Nexus-R5-V1.14.1-Release-6-NMCA-Ford-10200.nex 10200
BIG STUFF 3 GEN 4 FORD GEN4-STACK gen4 stack ”” NewAccel_SCJ 2 10200
FUELTECH FT450, FT550, FT600 FORD 4.81  / 4.90 FT450 NMCA 10200RPM
FT550 NMCA 10200RPM
FT600 NMCA 10200RPM
10200
HOLLEY DOMINATOR or HP EFI FORD V6 BUILD 220 HEFI_06002300_FORD.eep-V5 BUILD 182 10200
MOTEC M150 FORD   nmcafactorysupercarsfirmware 10200
 
NMCA Rules can be found here: https://www.nmcadigital.com/classes-and-rules/c21
 
Email Rule Questions or Requests to: [email protected]
 

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