Back in July 2015, NHRA announced plenty of new rule changes to its Pro Stock category after a pretty long time of neglect. And though there have been outspoken Pro Stock drivers, such as Warren “The Professor” Johnson, who have been calling for a change, I am not sure the current owners and drivers applaud this move.
As a Pro Stock car owner and driver I will say this. A change was needed and whether it be limited to the below mentioned rule changes, or there are more on the way, something had to be done. I have been following the category since my father, Eddie, was racing in an early model Malibu SS and the Aruban Maikito Ruiz drove a Chevy Camaro pro stocker called “Bad Banana”. To loose that awesome hood scoop will be hard but change is inevitable. The fact that there are so few teams in NHRA competition at, say Indy, illustrates the pressure the class is under and I applaud the governing body for this. Let’s just hope it is the right move.
NHRA 2016 Pro Stock EFI Requirements:
- Engine Control Unit: Holley HP ECU mandatory and EFI closed loop functionality permitted,
- Rev Limiter: hard limiter at 10,500 rpm but the soft is at the discretion of the teams,
- Throttle Body: Supplied by Holley and must be mounted facing forward and remain in the engine bay,
- Fuel Injectors, Supplied by Holley, maximum of 8 permitted, mounted externally on intake manifold runners, tips may not be modified and diffuser plates may not be added, Holley HP coil-near-plug mandatory,
- Fuel Delivery System: 90 psi max, Earl’s Performance Dry Break Coupler mandatory, Couple to be easily accessible by NHRA tech and be situated on fuel line between pressure regulator and fuel rail,
- Hoods: must be original OEM design, any modifications must be submitted to NHRA for approval, max hood height to be determined at a later date,
- Air Intake: to be located below top of front grill, body opening to be submitted by the OEM and accepted by NHRA
- Sensors (mandatory): crank and cam.
On the other hand, should you still want to see them hood scoops, you can allows follow IHRA or PDRA stateside.
Source: insideprostock.com
Photo credit: Dragracingonline.com – KB Racing/Jason Line
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