These requirements, as well as those for flywheel shields and bellhousings are covered in. All weights are with driver and rounded down to the. Cross members may only be altered or relocated for engine or transmission. 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. Coyote stock is designed around competitors using a production oem sealed ford coyote crate engine combined with a. Only eight injectors will be allowed and they must be mounted externally on the intake manifold runners. Ecpra east coast pro racing association provides vw enthusiasts across the united states with a safe and competitive environment to build and race against likeminded people. Good tires, a solid battery hold down, radiator overflow reservoir, functioning neutralsafety switch, seat belts, and a valid state drivers license or nhra competition license for all participants. The nhra attempted to balance the playing field for 1972 and introduced rules allowing for small. He was named as one of nhra s top 50 best drivers, and is a member of the international motorsports hall of fame. Nhrda pro stock class abbreviation psk headsup class 410th pro tree. Victory nostalgia super stock 2016 rules see below for original 2014 rules and addendums the below are the rules in print. Currently, the sports quickest super stock car is scott goves ssa modified dodge daytona with a.
May 19, 2017 one thought on the american powertrain parting shift. Extended cab, mid size ranger, s10 and dakota, 1997 and newer trucks are permitted. One thought on the american powertrain parting shift. April 2628 ngk spark plugs nhra fourwide nationals, charlotte, n. Af through hf class cars are limited to 1978 or newer. Reserved for 1955 or newer modelyear factory production automobiles and some sports cars.
Inside the transmission of an nhra prostock team valvoline. Power rankings are a rating used to rank race teams against each other and are updated on a. 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 following items are required for a vehicle and driver to pass tech. From the builder i assume the owner buys a car with all the suspension, wiring, a complete car less the engine and transmission at what round a bout price. Aug 14, 2015 under the new rules that go into effect for the 2016 season, pro stock engine builders will have to use the following holley parts to develop the fuel and spark system for their engines. Transmission must remain in conventional location, determined by. He was named as one of nhras top 50 best drivers, and is a member of the international motorsports hall of fame. There are a number of new rules for nhra pro stock class coming in 2016. Click here for the stock eliminator class rules on the nhra website. Eliminator category designation weight break 14 mile man 14 mile auto.
Pro stock eliminator reserved for american built cars with american automobile engines with a wheelbase of 97. Gray motorsports gives a quick run down on the liberty 5speed found in their prostock cars, via team valvoline. The late dave schultz is the alltime leader in pro stock motorcycle victories with 45. All cars must meet nhra rules and pass technical inspection. Here, we touch the surface of what those rules entail.
Nhra changes pro stock engine rules racepages digital. If you ever lift, does the trans just kick you into neutral. To those who follow nhra pro stock, warren johnson needs no introduction. Rules classes nhrda 2015 class rules national hot rod diesel association page 2 of 7. Pro stock is a class of drag racing featuring factory hot rods. These issues were the use of automated shifting devices with a manual transmission and the use of an automatic transmission. We recommend you purchase a current year nhra rule book. Nhra pro stocks utilize a liberty or gforce fivespeed clutchless manual transmission. All competitors must have nhrda competition number and class abbreviation in clear visible area on the front window, tower side window and back window of competition vehicle. All gear changes must result from direct action by the driver.
Seats must also be supported and constructed of fiberglass, carbon fiber, doublelayer poly, or aluminum. Nhra mello yello drag racing series 5th paragraph page ix 1092019 pro stock motorcycle is the twowheel category in the nhra mello yello drag racing series. Having it taken away because of a rule violation would be agony. As i understand it a pro stock car is the most technological advanced vehicle out there. Nationals steve johnson clearly beats matt smith for the win in pro stock motorcycle but the nhra overturns the timing and scoring decision 2 days later. Inside the transmission of an nhra prostock may 21, 2015. Only those cars listed in the guide are eligible for competition. Taking advantage of gms unique crc factory roller program, patterson racing built a 2014 copo camaro clone from the ground up and applied many of the tricks learned in comp and pro stock to the 396ci naturally aspirated ls3based engine. Jr street rules section of nhra rulebook hot rod heritage racing.
Weve all heard the rumblings and the joke that it isnt pro stock but rather pro camaro due to the overwhelming number of those cars in. The cars have come a long way since their debut at the 1970 winternationals. Nostalgia eliminator presented by capitol city transmission. It has been a feature of nhra drag racing since the 1980s when it was added to the professional class structure and has since spread. Take a look inside a neat liberty 5speed nhra pro stock transmission mr. Nhra has recogized this, and the rules allow for replacement and superseded parts excerpt from the rule book. Nhra publicationss books and publications spotlight. For instance, if the particular vehicleengine combination you are looking at has a factor of 8. This is general information only and you should always refer to the current official nhra rule book.
Before the dallas race last october, the nhra had threatened to limit the fields from 16 to eight and to erase the class from a handful of events. All three have a multitude of individual subclasses, classes, and rules. The rules dictated that all pro stock cars be 68 or later north americanbuilt. Hot rod engine tech inside warren johnsons pro stock. Classified per ihra performance rating as listed in the official ihra stock car classification guide.
If you check the rule book, astock automatic has a weight break of. Nhra is taking the rivalry to another level in 2018 with its pro stock category by allowing any approved engine to be installed in any nhralegal body. Pst, bt and ct, one class each for stick and automatics. All other stock rules as found in the latest version of the nhra rulebook and nhra rulebook amendments apply. Per the nhra rule book, on unibody cars with stock floor and firewall wheel tubs permitted, the roll cage may be bolted or welded to the floorrocker box.
Transmission case and lines must be fully enclosed in a tunnel constructed. The rules clarification answered many questions lingering since the sanctioning body announced last month that pro stock will convert to efi as part of the divisions most sweeping changes since 1982 when the 500ci rule was introduced. The practice of transbrake testing, converter stalls, lineloc testing, andor transmission warming is prohibited in. It was this factoring by nhra that would lead directly to the development of the vehicle known as the taxi. Pro stock cars have come a long way since their debut at the 1970. 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.
Matt smith for the win in pro stock motorcycle but the nhra overturns the timing. See nhra et handicap racing, super pro, pro, sportsman, suspension, altereds, dragsters also see nhra 3. Coyote stock class overview coyote stock is a naturally aspirated headsup class designed for 1954 and newer ford bodied vehicles and is one of the most costeffective classes in drag racing. Pro modifieds can either be raced on 14 mile or 18 mile tracks. Manual transmission rules for nhra stock eliminator, 2009. You will be signed out in seconds due to inactivity. Basic nhra safety rules v072015 this is general information only and you should always refer to the current official nhra rule book. When i got tired of the weekly nhra rule changes, i sold the red and got back into classic chevrolets. Racing is generally held along the east coast and midwest united states, for pro. The current nhra pro stock motorcycle elapsed time record is 6. The four combo classes will be super stock combostick, super stock comboautomatic, stock combostick and stock comboautomatic.
Oem or nhra accepted aftermarket transmissions having same number of forward speeds od gear not required and reverse, may be used. Incredibly, the 1970 nhra rulebook dedicated barley one page to the specifications for the new pro stock class. The national hot rod association pro stock class emerged from the productionbased super stock in 1970 with a more liberal set of rules and an absence of handicaps. This class will be an all run headsup field, nhra pro ladder on a. Classified per nhra performance rating as listed in the official nhra stock car classification guide. Classbyclass regulations and requirements, racing procedures, and more are all covered in this. Mini tubs allowed, so long as stock frame rails are in stock location. Nhra sets new stock, super stock rules speed sport. Transmission, driveline, and rearend regulations clutches and flywheels on cars running 11. In no way are these rules intended to supersede or replace the current nhra andor track rules.
National hot rod association masthead remove all of page iii page iii 1092019 introduction. Rules initially favored big block v8s with chrysler hemi engine powered cars winning the world title the first two years. No collection of a true student of the sport will be complete without the history of nhra pro stock. Superseded andor replacement parts superseded parts are restricted to cylinder heads, intake manifold, crankshaft, cylinder block, and transmission only when manufacturer lists such parts in its published parts book, notifies nhra. Heres a look at the very first pro stock rules, as printed in the 1970 nhra rulebook. I think that specific class of the sport is a bit overlooked here. Automatic transmission flex plate meeting sfi spec 29. Well start with probably the simplest of the threenhra stock eliminator. Understanding class racing stock eliminator dragzine. No live webcast of video or other live transmissionlive. With input from the pro mod advisory council with concerns regarding driver aides in the pro mod category, it is the decision of the nhra tech department to prohibit the use of automated shifting devices and automatic. Most of the early heroes of nhra pro stock racing including bill grumpy jenkins, ronnie sox, butch leal, dick landy, dyno don nicholson, and bob glidden all got their start racing in super stock. Below lie the complete set of rules for pro stock eliminator in the year 1974. The 2020 nhra rulebook is now online and viewable by all who wish to compete in the nhra arena.
Safety regulations for nhra classes and brackets racingjunk. To continue working on the website, click stay signed in below. So, i built a pro bracket 56 chevrolet model 150 utility sedan, followed by a fed for pro bracket, and then a red for super prosuper comp. Weve all heard the rumblings and the joke that it isnt pro stock but rather pro camaro due to the overwhelming number of those cars in competition. The nhra stock car classification guide is posted online, and it allows. Inside the transmission of an nhra prostock youtube. All cars in stock classes must be factoryproduction assembled, showroom available and in the hands of the general public. I would guess a prostock would be higher priced than a fuel car or dragester wo drivetrain. Yes, there are actually nhra regulations that cover the interior of your car. Pro stock was born and the performance escalated quickly. Usually, the nhra races pro mod cars on the 14 mile, resulting in high 5 to low 6 second passes, while the pdra races strictly on 18 mile track setups, allowing for high 3 secondto low 4 second passes. To download pdf versions of minor past revisions, please visit our tech advisories page under the tech and safety tab.
The history of the pro stock class is being celebrated by nhra in 2020 with a 50 years of pro stock salute. This division has specific rules about engines, components, bodies, etc. Street cars the following items are required for a vehicle and driver to pass tech. May 21, 2015 gray motorsports gives a quick run down on the liberty 5speed found in their prostock cars, via team valvoline. Winner of six pro stock world championships, the professor was also the first to exceed 180 mph, 190 mph, and 200 mph in an nhra legal pro stocker. Get your official nhra national hot rod association rule book to stay compliant at the strip. Even in the 21st century, the nhra rules and policy makers will still find a way to thwart the hemis dominance and performance potential, especially in the factory stock showdown class. The national nostalgic pro stock association was formed in 1994 by dominic. One of the key parts of these rules is the factoring numbers that are near the top of the rules. The history of nhra pro stock by nhra publications.
Looks a lot like a dragbike auto trans, but it doesnt look like high gear locks in. Following a 1973 nhra rule change to allow records to be set at any national meet. Rear axles shall be stock width production units only. Any nonoem ie aftermarket automatic floormounted transmission shifter must be. Why nhra factory stock is the hottest class in drag racing. This set of class rules is presented to all competitors under the assumption that any. Pro stock motorcycle is a drag racing class that is the twowheeled equivalent of pro stock. Track rules and guidelines for firebird raceway, a nhra drag racing facility with a full season of racing located in eagle, idaho. The pro stock class in nhra has been subject to many changes and resulting drama over the past couple of years. Heres the language ver batim, from the 2009 nhra rulebook.
Transmission reverse lockout yy y y y y transmission shield sfi 4. One significant change to increase the level of competition in class eliminations is the creation of combo classes in super stock and stock for those classes that are represented by a single car. So could the nhra pro stock team owners and drivers. Nov 23, 2017 nhra rules, rarities, records, and reruns dave w. First, hood scoops were gone, then carburetors were gone. March 1417 amalie motor oil nhra gatornationals, gainesville, fla. Dec 05, 2017 the pro stock class in nhra has been subject to many changes and resulting drama over the past couple of years.
Apr 08, 2015 weve talked before about the different brackets and classes in nhra racing, but here were going to break down the rules and regulations of each of the classes in terms of safety, focusing on the ones that dont require huge financial backing and professional status since one of my colleagues has already done a fine job of listing most. Dec 05, 2017 nhra is taking the rivalry to another level in 2018 with its pro stock category by allowing any approved engine to be installed in any nhralegal body. Class description nostalgia super stock is an index style foot brake only. Class racing refers to the eliminators of competition, stock, and super stock.
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