To those who follow nhra pro stock, warren johnson needs no introduction. Oct 09, 2019 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. The nhra technical department is increasing the minimum weight of the harley davidson, victory, erik buell racing and buell motorcycles from. These gigantic carburetors are available exclusively through star racing and are the exact carbs that we use in our nhra pro stock suzuki motorcycle. Nhra adjusts pro stock bike engine rules speed sport. 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. The pro stock class in nhra has been subject to many changes and resulting drama over the past couple of years. As a result, we believe nhra fans are in store for some exciting sidebyside racing in the pro stock motorcycle category in 20.
Run in conjunction with the lucas oil drag racing series program. The cars still readily resembled production models albeit with better stance and flared fenders not to mention hood scoops. Steve johnson clearly beats matt smith for the win in. From our trick truck class to our pro motorcycle class, at best in the desert we offer 24 unique desert racing classes for competitors to race in along with an array of contingency programs for each class. Get your official nhra national hot rod association rule book to stay compliant at the strip. While the suzuki engine is an unsupported antique in this. Pro stock is a class of drag racing featuring factory hot rods. Bryce argues the fact hines and teammate eddie krawiec are allowed to race a brand of motorcycles unavailable to the rest of the class is a clear violation of longstanding nhra rules. 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 lectron 52 power jet pro carburetor is the ultimate for large air flow requirements. The four combo classes will be super stock combostick, super stock comboautomatic, stock combostick and stock comboautomatic. The most popular powerplant is a 7,500 to 8,000 horsepower crateengine version of the chrysler 426 cubicinch, 90degree v8 hemi.
Nhra to allow any accepted enginebody combination in pro. We offer a wide variety of semi transporters, motor coaches, gooseneck and stacker trailers, specialty hospitality and point of sale units, as well as new and used highperformance engines, race. The pro stock motorcycle, also known as pro stock bike or just pro bike, are finely tuned naturally aspirated motorcycles with powerful inline 4 cylinder or vtwin based engines in custom chassis with bodies designed to replicate production motorcycles. Decoding scca road racing classes kanga motorsports. Top fuel dragster engines must follow strict guidelines set by the nhra governing body when competing in championship drag racing events in the united states and canada. You see, george bryce of star racing came up with the idea to bring a bonified vtwin into the nhra pro stock motorcycle ring. Street cars the following items are required for a vehicle and driver to pass tech. Reserved for north american built cars with north american automobile engines with a wheelbase of 100 inches or more and for american subcompacts amx, colt, cricket, gremlin, pinto, vega, astra, etc.
Elite motorsports, llc is your premier dealer for all your motorsports transportation needs. In 1970, both the ahra and nhra launched a pro stock class featuring the most popular drivers and fastest cars. Class eligibility is based on requirements that include type of. Nhra spent countless hours speaking with the engine builders and manufacturers as well as the race teams to come up with the final engine specifications for 20, said glen gray, vice president of technical operations, nhra. Changes to the design, functionality or configuration of the approved components are not permitted. Nhra announced changes to the pro stock motorcycle category. Most of these guys will have to revamp their engines to bring. We offer a wide variety of semi transporters, motor coaches, gooseneck and stacker trailers, specialty hospitality and point of sale units, as well as new and used highperformance engines, race cars, and racing equipment. Is the new nhra pro stock motorcycle rule a kneejerk reaction. 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. Here, we touch the surface of what those rules entail. Taken from the 1965, official nhra rule book pertaing to the gas coupesedan class aka gas class or gassers for short. Exclusive photos of our new nhra suzuki bike build. In the vrods infancy in the early 2000s, the big question was, could such a machine even qua.
The current pro stock package traces its genesis to the factory bigblock engines of the musclecar era and the popular super stock classes in the late 60s. 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. The quickest pro stock motorcycles produce more than 370horsepower. Pro stock motorcycle news newspapers books scholar jstor july 2018 learn how and when to remove this template message. Nov 23, 2017 nhra rules, rarities, records, and reruns. Steve johnson clearly beats matt smith for the win in pro. For 20, harleydavidson and buell will both be allowed a maximum 160cubic inch displacement cid, for a. Competitors in pro stock motorcycle have a choice of two drastically different powerplants, both of which are capable of 6. In realizing the popularity and rapid growth in the last few years, ihra, with the help of its many track operators, has formulated a very strong prog.
First, hood scoops were gone, then carburetors were gone. Check out the latest results from this exciting class of professional motorcycle drag racing. Exploring the vance and hines vrod monopoly drag bike news. Ever since the inception of the vance and hines harleydavidson vrod in the nhra pro stock motorcycle class, the unique marvel of engineering has been a major topic of conversation and controversy. Having it taken away because of a rule violation would be agony. Specializing in custom designed high performance competition engines and carburetors for nhra, adrl, andra, and bracket racing applications. Early 500inch pro stock engines using the old bow tie block had a bore around 4. Navigating the nhra pro stock motorcycle series with vance. Apr 08, 2015 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. Ihra summit proam tour for 2012, summit continues its partnership with ihra on the the proam tour.
Now, thanks to the introduction of harleydavidson and buell vtwins to challenge the dominant fourcylinder suzukis, were seeing the fastest, most competitive pro stock field in years. Nhra sets new stock, super stock rules speed sport. You know heres the rule book and a blank sheet of paper lets see what you come up with. All pro stock motorcycle engines are required to use racing gasoline only. The 1970s pro stock drag racing was the golden age of pro stock, otherwise known as the factory hot rods. Dec 05, 2017 the pro stock class in nhra has been subject to many changes and resulting drama over the past couple of years. Most of these guys will have to revamp their engines. 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.
After the season opener at the 50th amalie motor oil gatornationals in gainesville, florida. Recognizing this problem, the nhra took radical steps in 2002 to revitalize pro stock racing, rewriting the rulebook to make vtwinpowered. There are a number of new rules for nhra pro stock class coming in 2016. Aug, 2015 there are a number of new rules for nhra pro stock class coming in 2016. With an ever changing rule book, some cars might move between the classes from year to year so check the latest scca general competition rules for the most current information. This cylinder head is eligible for pro stock motorcycle use only and is contingent that.
Jr street rules section of nhra rulebook hot rod heritage racing series rulebook. New billet 4valve cylinder head approved for suzuki nhra. Pro stock motorcycle is the twowheel category in the nhra. Learn more about vehicle requirements and specific regulations for. This season harley dominates nhra motorcycle drag racing as rider ed krawiec just racked up his third win in a row. 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. Safety regulations for nhra classes and brackets april 8, 2015 mike aguilar drag race 101, drag. In a historymaking decision made at the request of the teams, nhra will allow pro stock racers to run any currently approved engine combination in any currently approved body, regardless of the.
No, a motorcycle is, first of all, drive, a way of life, your own special style and format. Pro stock motorcycle, formerly known as pro stock bike, is a motorcycle drag racing class that is the twowheeled equivalent of pro stock. These open wheel cars use cc motorcycle engines with a chain driver that are high reving and make the cars sound like high performance street bikes or older f1. 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 around the globe. Mark whisnant is timed out because of it and the nhra rules a rerun is the outcome. This carburetor has been proven as the carb leader from nhra pro stock motorcycles to atv and snowmobile. We are posting regular updates and photos on our nhra suzuki pro stock motorcycle build project. For 20, harleydavidson and buell will both be allowed a maximum 160cubic inch displacement cid, for a 60degree, twovalve, pushrod engine. The rules that exclude forced induction of any sort, plus allowing head modifications, have resulted in pro stock heads being the most sophisticated in any drag racing category, with valve lifts in the 1 region. Since that time carpenter racing has produced the highestoutput motorcycle cylinder heads and engines for various disciplines of allout performance. At nhra mello yello drag racing series events, fans may see more than 200 classes of vehicles in 15 categories, or eliminators. Pro stock world champion, bob glidden, pro stock ford pinto. He was named as one of nhras top 50 best drivers, and is a member of the international motorsports hall of fame.
Is the new nhra pro stock motorcycle rule a kneejerk. Not long ago nhra pro stock motorcycle racing was living on borrowed time. The first points championship season was the 1987 nhra. Seven classes restricted to 1980 and newer body styles incorporating accepted engines from models years 1955 to 1979.
The nhra technical department is increasing the minimum weight of the harleydavidson, victory, erik buell racing and buell motorcycles from. Andrew hines recently became the winningest pro stock motorcycle rider in nhra competition, and bryce believes the accomplishment is tainted. By the early 1980s he had won four pro stock motorcycle championships in the nhranmra, amdra and dragbike. Nhra to allow any accepted enginebody combination in pro stock.
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. A pro stock motorcycle transmission is integrated into the engine and features six forward speeds. Modern pro stock engines generally produce around 2. The current nhra rules allow for a mixture of 90% nitromethane to 10% alcohol. New billet 4valve cylinder head approved for suzuki nhra pro. Hot rod engine tech inside warren johnsons pro stock. How much horse power does nhra pro stock motorcycle have. In 20 the nhra made a rule change to limit the vrods.
Safety regulations for nhra classes and brackets racingjunk. Suzuki pro stock dragbike gsxr drag race racing motorcycle. By matt polito the turmoil in the pro stock motorcycle class has subsided from nearfrenzy earlier in the year as the nhra struggles to maintain parity between the now four different brands of motorcycle regularly competing. As the structure of the blocks became stouter, engine builders consistently enlarged the bore as far as they dared so that bigger valves could be stuffed into the cylinder head. They can have it within two months time and build it and go just as fast as we can if thats what they want to do. The pro stock engine is a purpose built 160 cubic inch pushrod vtwin engine.
The nhra states that any vehicle other than a motorcycle that is capable of doing 5 mph or better has to conform to the minimum safety requirements for a. Standard safety requirements are the only class rules. Critical dimensions, as well as casting numbers for cylinder heads, intake manifolds, etc. Pro stock motorcycle, formerly known as pro stock bike, is a motorcycle drag racing class that. Smith isnt the least bit intimidated by the factory harleydavidson team and should be more motivated than ever to finish the job. Blueprint specifications contain information vital to building nhra legal stock and super stock engines. You know heres the rule book and a blank sheet of paper lets see what you. Sep 22, 2011 ever since the inception of the vance and hines harleydavidson vrod in the nhra pro stock motorcycle class, the unique marvel of engineering has been a major topic of conversation and controversy. Created to legitimize illicit street racing, pro street is reserved for stock. Jerry savoie takes the white alligator racing team suzuki to victory but the real buzz was the retirement of the pro stock vrod.
938 892 629 858 935 655 384 1071 445 204 639 936 1208 1498 147 356 1238 485 136 420 1000 1510 774 308 379 76 215 1677 245 653 268 715 1589 413 557 1107 1338 646 165 1447 1248 1411 763 932 429 48