Today NHRA announced the 2016 Pro Stock Electronic Fuel Injection (EFI) requirements. A detailed technical document containing the mandated part numbers, prices, and part specifications can be found on www.NHRARacer.com or by clinking on the following link: http://promod.nhra.com/UserFiles/File/Tech/NHRA_EFI_Specifications_Rev1.pdf.
NHRA 2016 PRO STOCK EFI REQUIREMENTS
o Holley HP ECU part number 554-129 mandatory
o EFI closed loop functionality permitted
o Rev Limiter:
§ NHRA hard limiter set to 10,500 rpm
§ Teams have the ability to set soft limiter to desired rpm level
o Holley part number 112-123 mandatory (25 sq. inches)
o Must be mounted forward facing and remain in the engine compartment
o Holley part number 522-568 mandatory
o Maximum of 8 injectors permitted
o Must be mounted externally on intake manifold runners
o Injector tips may not be modified and diffuser plates may not be added
o Use of standard Holley supplied extenders only permitted
o Holley HP Smart Coil-Near-Plug Smart Coil (8 ea.) Holley part number 556-112 mandatory
· Fuel Delivery System:
o 90 psi Max
o Earl's Performance Dry Break Coupler part number JV270204RL mandatory
o Coupler must be remotely mounted on the fuel line between the fuel pressure regulator and fuel rail
o Coupler must be easily accessible by NHRA Technical Department
- Hoods:
- Must be original OEM design, any variations to the hood must be submitted by the OEM and accepted by NHRA Technical Department prior to running in competition
- Maximum hood height from ground will be determined at a later date
- Air Intake:
- Must be located below top of front grill
- Opening in body (location and dimensions) must be submitted by the OEM and accepted by NHRA Technical Department prior to running in competition
- Sensors (mandatory):
o Holley Hall Effect Crank Sensor Holley part number 554-118
o Holley Hall Effect CAM Sensor Holley part number 554-127
For additional information or questions please contact Tim White at twhite@nhra.com or 317-387-7361
