Nhra also clarified a rule regarding the mandatory fuelinjection units, citing. He was named as one of nhras top 50 best drivers, and is a member of the international motorsports hall of fame. Under the new rules that go into effect for the 2016 season. Nhra to allow any accepted enginebody combination in pro stock. This cylinder head is eligible for pro stock motorcycle use only and is contingent that all units must continue to meet all applicable requirements of the nhra rule book. Following a 1973 nhra rule change to allow records to be set at any national meet. Hot rod engine tech inside warren johnsons pro stock. Although efi electronic fuel injection is not currently allowed in pro stock, it is. Nhra officials announce 2016 pro stock efi rules and. Winner of six pro stock world championships, the professor was also the first to exceed 180 mph, 190 mph, and 200 mph in an nhralegal pro stocker. The holley hp ecu, throttle body, fuel injectors, crank and cam sensors, and smart coils are mandatory.
The sanctioning body has named holley as the sole provider of the components of the electronic fuel injection system. Before the time of power adders, going fast required a killer allmotor setup, and the kings of the naturally aspirated world were nhra pro stock racers legends like bill grumpy jenkins, ronnie sox, and warren johnson, who all banged gears while zinging their smallblock powered machines to the moon. A bit more than two weeks after announcing a new set of 2016 rules for their factory hot rod class, pro stock, the national hot rod association nhra delineated many of the strictures that will. In nhra pro stock, the efi rules went into effect in 2016. Yes, there are actually nhra regulations that cover the interior of your car.
Incredibly, the 1970 nhra rulebook dedicated barley one page to. Holley pro stock electronic fuel injection debuts at winternationals greg anderson wins pro stock with holley fuel injection at the 2016 nhra winternationals. Since 2016, pro stock teams have used holley efi as mandated by nhra rules. Holley pro stock electronic fuel injection debuts at. Here are the two main required components from holley for 2016 nhra pro stock engines. This class will be an all run, headsup field, nhra pro ladder, on a. Possible changes to nhra super street rules by larry santucci december 06, 2010 many nhra super street racers have received an email concerning changes that are being considered to the nhra super categories, super comp 8. I dont suppose the nhra would try a simple fix by dropping rev limiting rules and let. Pro stocks dave river runs through pro stock rule changes. This set of class rules is presented to all competitors under the. Heres a comparison of a 1970 versus 2020 nhra pro stock car. Major changes from pro stock drag racing trim are much less valve lift, and conversion to efi. Per class requirements, oem or oemtype electronic fuel injection permitted. To those who follow nhra pro stock, warren johnson needs no introduction.
Nhra hard limiter set to 10,500 rpm teams have the ability to set soft limiter to desired rpm level. Stock oem, nmca or nhra accepted aftermarket crankshaft mandatory. Classbyclass regulations and requirements, racing procedures, and more are all covered in this. Weve jammed as much as you could pack into an offseason.
Nhra announced the rules and requirements for the 2016 pro stock category in their transition to electronic fuel injection efi. What is with the efi, a throttle body injection is 80s technology. Safety regulations for nhra classes and brackets april 8, 2015 mike aguilar drag race 101, drag racing, howto and tech tips, nhra 1 a mustang gt and a fiesta rally car at an unknown track. Hot rod engine tech inside warren johnsons pro stock engine. The class is often described as all motor, due to the cars not using any form of forced induction such as turbocharging or supercharging, or other enhancements, like nitrous oxide, along with regulations governing the modifications allowed to the engines and the types of bodies used. We dont run our car a lot harder than that anyway, he casually says of the new rule. New billet 4valve cylinder head approved for suzuki nhra. Classified per nhra performance rating as listed in the official nhra stock car classification guide. It probably wont hurt our team as much as itll restrict some of the other top teams. Consistent with its endeavors to maintain drag racings acceptance as a. Possible changes to nhra super street rules dragzine. Their has been alot of teams that have already tested with efi and are ready to go if they ever make the switch.
The sanctioning body has named holley as the sole provider of the components of the electronic fuel injection system the changes in the category will make the engines more relevant from a technology standpoint. The current rumors and dialogue surrounding new rules for nhra pro stock has certainly increased the interest level from within the class, especially among engine builders. Heres a look at the very first pro stock rules, as printed in the 1970 nhra rulebook. Incredibly, the 1970 nhra rulebook dedicated barley one page to the specifications for the new pro stock class. Changes to the design, functionality or configuration of the approved components are not permitted. The decision, which was announced today in a letter to pro stock teams. Pro stock eliminator reserved for american built cars with american automobile engines with a. Reserved for 1955 or newer modelyear factory production automobiles and some sports cars. Pro stock permits, cars to use electronicallycontrolled throttle body fuel injection systems. And for a racing engine probably less reliable and harder to tune than the carbs. Street cars the following items are required for a vehicle and driver to pass tech. Now, holley efi products power these cars and are dominating the performance world. The 2020 nhra rulebook is now online and viewable by all who wish to compete in the nhra arena.
Jr street rules section of nhra rulebook hot rod heritage racing. Nhra officials announce pro stock efi rules and requirements. The nhra has finally released the technical details for the new efi system to be used in pro stock starting in 2016, and it uses many of holleys venerable aftermarket fuelinjection components. Basic nhra safety rules all cars must meet nhra rules and pass technical inspection this is general information only and you should always refer to the current official nhra rule book. Seats must also be supported and constructed of fiberglass, carbon fiber, doublelayer poly, or. Nhra announced thursday the rules and requirements for the 2016 pro stock category in their transition to electronic fuel injection efi. Killing pro stock by eliminating competition with their rule book seems rather dumb. Should the race team elect to use an o2 sensor for closedloop operation, there is a specific sensor from holley on the legal list, but we suspect few teams actually use it. Nhra pro stock is the worlds premier professional class of fullbodied door slammer drag race cars and holley efi will be controlling both the fuel injection and ignition in these incredible machines. Pro stock eliminator reserved for american built cars with american automobile engines with a wheelbase of 97.
Nhra also stated pro stock engines will be limited to 10,500 rpm, a measure of little concern to river. Nhra mandates efi, other changes in pro stock but stingy. While the nhra announced sweeping, albeit expected, changes for pro stock racers that include converting to electronic fuel injection and limiting engine speed to 10,500 rpm, the teams have little in the way of detailed technical requirements for guidance in implementing these new rules before they go into effect at the start of the 2016 season. Erica enders theres a lot going on in pro stock, and a lot of the teams are outside their comfort zone with the new rules. Nhra tech department makes updates to the stock car classification guide 3252020 nhra tech department makes updates to the engine blue print specifications 3252020 nhra announces revised schedule for mello yello drag racing series additional racer information 3252020. Pro stock is a class of drag racing featuring factory hot rods. No collection of a true student of the sport will be complete without the history of nhra pro stock. Now, holley efi is dominating the performance world as well as our products for gms ls engine. Nhra 2016 pro stock efi requirements engine control unit. Holley has been the undisputed leader in fuel systems for over 100 years. Holley efi selected to power nhra pro stock teams in 2016. Nhra announced the rules and requirements for the 2016 pro stock category in its transition to electronic fuel injection efi.
Nhra announced today the rules and requirements for the 2016 pro stock category in their transition to electronic fuel injection efi. Aaron strongs nhra efi pro stock dyno pull sam tech tuned. Here are the specifics on the efi nhra pro stock will be running in 2016 aug 14, 2015 brian lohnes 20 drag news, 20 drag racing feature, bangshift 20 9 yesterday it was announced that holley would be the sole provider of efi equipment to the nhra pro stock world for 2016. Holley is pleased to announce that holley efi has been selected by the national hot rod association nhra to power all pro stock teams starting in 2016. Nhra brings pro stock induction tech into the 21st century. Nhra announces holley as sole provider of new pro stock. The rules dictated that all pro stock cars be 68 or later north americanbuilt. See what the pro stock guys have been hiding from you the nhra has pulled back the curtain of secrecy in the pro stock pitsand hot rodders should pay attention. A bit more than two weeks after announcing a new set of 2016 rules for their factory hot rod class, pro stock, the national hot rod association nhra. Pro stock cars, equipped with a single or dual disc clutch, must have a. On january 30th 2016, sam instructor, chris bennett, went to stanfield enterprises to tune aaron strongs 500 cid nhra pro stock engine running holley efi.
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