
How are the cars classified in Stock Eliminator?
All cars within Stock Eliminator are classified by using the factory shipping weight, divided by either advertised factory advertised horsepower or the NHRA factored (re-rated) horsepower. Shipping weights are provided by the Original Equpment Manufacturer. Ditto with Advertised Horsepower.
What are the NHRA's Stock and Super Stock Eliminators?
There are many classes within NHRA's Stock and Super Stock eliminators. Each class is defined by a ratio of vehicle shipping weight and a horsepower factor. The NHRA Stock Car Classification Guide is used to position a vehicle in its proper class. Below on this page, you will find all years and makes in the NHRA Stock Car Classification Guide.
How do I find the NHRA factored horsepower for my engine?
At the bottom of each column, you may find another number which represents the NHRA factored horsepower. This is the number used in determining classification (not the advertised), and some engines will have a different factored horsepower for Stock and Super Stock.
Can you replace parts in Stock Eliminator?
Since many of the traditional cars racing in Stock Eliminator are getting long in the tooth, critical parts are often hard to track down (have you ever tried to find 1969 Camaro parts at the local junk yard?). NHRA has recogized this, and the rules allow for replacement and superseded parts (excerpt from the Rule Book):

What is NHRA horsepower?
A Top Fuel Dragster—distinguished by a supercharged, custom-built, 500-cubic-inch engine—boasts 11,000 horsepower and burns nitromethane. By contrast, a Top Alcohol Dragster's output is about approximately 4,000 hp.
What is NHRA Factory Stock?
The Constant Aviation NHRA Factory Stock Showdown is a stand-alone program designed to showcase the Chevrolet COPO Camaro, Dodge Challenger Drag Pak, and the Ford Mustang Cobra Jet. The FSS cars will participate in heads-up competition at eight (8) National Events.
How fast are super stock cars?
The cubic inch displacement of the engines in Nostalgia Super Stock is not a tech item, and motors as large as 620 cubic inches (10 L) has these cars running as quick as 8-seconds in the quarter mile, at speeds over 150 miles per hour (241 km/h).
What is Super Stock?
Super Stock vehicles may look like ordinary passenger vehicles, but they are highly modified race cars. The category features primarily late-model sedans and vintage muscle cars, and entries are classified using a system that divides factory shipping weight by NHRA-factored horsepower.
How much is a factory stock car?
This division is a beginner class that takes cars from the street and makes them into race cars. Factory Stocks can range anywhere between $3,000-$10,000 depending on the type of chassis (car frame) and engine.
What are the different classes of drag racing?
The four Professional categories are Top Fuel, Funny Car, Pro Stock, and Pro Stock Motorcycle. They, along with Top Alcohol Dragster and Top Alcohol Funny Car, the three “Super” classes – Super Comp, Super Gas, and Super Street – and Pro Mod feature a single class of vehicle in heads-up competition.
How much HP do Funny Cars have?
Horsepower claims vary widely—from 6,978 to 8,897—but are probably around 8,000 HP. Supercharged, nitromethane-fueled motors of this type also have a very high torque, which is estimated at 7,000 ft⋅lbf (9,500 N⋅m). They routinely achieve a 6G acceleration from a standing start.
How many horsepower is a Nascar?
The engines in today's NASCAR race cars produce upward of 750 horsepower, and they do it without turbochargers, superchargers or particularly exotic components.
How much does a gallon of nitromethane cost?
… Nitromethane used to power the engines of NHRA Top Fuel dragsters and Funny Cars costs about $16 US per gallon!
Which is faster Demon or redeye?
The Demon completed the quarter-mile in 10.17 seconds with the Hellcat Redeye finishing not far behind with 10.52 seconds.
Is Super Stock faster than Demon?
The Dodge Challenger SRT Super Stock holds the title as the world's quickest and most powerful muscle car with a 0 to 60 mph time of 3.25 seconds (1.05 seconds behind Demon with High Octane mode active), can run the quarter-mile in 10.5 seconds at 131 mph (versus Demon's 9.65 seconds at 140 mph with High Octane mode ...
How much horsepower does a Hellcat Super Stock have?
807-hpThe mad scientists at Dodge's SRT laboratory pulled a Samuel L. Jackson and went all Old Testament with the almighty Hellcat engine. The standard setup makes "only" 717 horsepower, and the version in the Redeye pumps out 797 horses. The 807-hp Super Stock model features dedicated equipment for drag racing.
Gasp N Roosh New Member
How-dee! My name Hernandez Herpes. (Well, it isn't but I might use it on the car.) Tijuana Taxi?
iraceitall Member
Because if you claim the car as a 75, it had better fit what they look for as a 75. Someone inevitably will complain.
olerodder Member
Building a car to compete in SS or S has not changed much in the past 40 years.
Paul Masson MCCI Atlantic Canada Rep
from Atlantic Canada! Sounds like a fun build. I will be looking forward to seeing your Build Thread in the General Maverick section.
dan gregory Member
That`s why I would`nt want to run S & SS in the NHRA,those guys are a PITA.If you remember back in the late 70s & early 80s Mavericks were punished pretty badly w/ the larger V8s making them almost non competitive.The only cars they could`nt punish enough to help Chevy win was the Hemi Cudas,& they created a class only for them.
Can a piston be lighter than the factory specs?
Rod and/or piston assembly can not be lighter than factory specs. Valves can not be larger than OEM. Carburetors and fuel injection throttle bodies can not exceed factory specs either. Certain aftermarket and replacement parts are allowed, but must meet the weight, volume, and other dimensions of OEM parts.
Do you have to pass a fuel check at the scales?
Cars also have to pass a fuel check at the scales, to insure racers are not using any illegal additives to their fuel. Leaded racing fuels are the only ones permitted, and there is an Accepted Fuel list and those are the only fuels legal in NHRA competition.
Why is the 1969 Camaro L72 engine a GM 401?
The reason for this is because the engine horsepower has been regularly “factored” by the NHRA. Our sample 1969 Camaro L72 engine is allowed either a GM “401” replacement aluminum cylinder head or an Edelbrock 60547 cylinder head. With either head installed on the engine, the horsepower factor increases.
Do stick shift cars have horsepower?
Today, stick shift cars may have different horsepower factors than their automatic counterparts. You have to watch for this in the Classification Guide. This is a good time to point out that in the old days of class racing, cars were not allowed major weight additions or deletions.
