NHRA - National Hot Rod Association

BUY TICKETS

The Toyota “Hemi” you never knew about—until now!

In the 1960s, V-8 engines with hemispherical “Hemi” cylinder heads were the symbol of factory-engineered horsepower.
11 Aug 2020
David Kennedy
Racing Technology
4
In the muscle car era, it seemed every manufacture was working on a hemispherical-combustion-chamber "Hemi" engine with centrally located spark plugs. From Pontiac to…
View More

What is the Chevy DRCE Pro Stock engine?

Chevrolet’s top-secret Pro Stock race engine has been shrouded in mystery for decades. It’s known as the Drag Race Competition Engine (DRCE), and its architecture has been massaged into a nearly 10,000-rpm, fuel-injected, 500-cid race mill that actually began life with the Oldsmobile brand.
31 Jul 2020
David Kennedy
Racing Technology
DRCE 3 Engine
The Drag Race Competition Engine (DRCE) is a series of purpose-built drag racing cylinder heads and engine block castings that are based on the big-block Chevy, but originally branded as an Oldsmobile. There are four generations of DRCE aluminum…
View More

NHRA Expertise: Inside Top Fuel beadlock wheels

A close-up look at the fastest wheels in all of racing
24 Jul 2020
David Kennedy
Racing Technology
NHRA Top Fuel Weld Beadlock Delta-1 TF Wheel
Brutality. It’s the only treatment components in a nitro-powered Top Fuel dragster or Funny Car experience. With tuners now extracting more than 11,000 hp from their 500-cid supercharged engines, every part beneath the decals on the valve covers is…
View More

ProCharger to participate in NHRA Contingency program in Top Alcohol, Top Dragster, and Pro Mod in 2020

26 Jun 2020
Posted by NHRA.com staff
Racing Technology
ProCharger Superchargers now in NHRA Contingency Program for 2020
In addition to its sponsorship of the Pro Mod class at the 2020 NHRA U.S. Nationals in Indianapolis this year, ProCharger has stepped up and joined NHRA’s contingency program. Winners and runners-up in the Pro Mod class are now eligible for $500 (…
View More

Pro Stock engine builder profile: Joey Grose

We're taking you inside the minds of the engine builders who create the most powerful naturally aspirated 500-cid race engines on earth
19 Jun 2020
David Kennedy
Racing Technology
Pro Stock engine builder profile: Joey Grose
Pro Stock engine builders have a legendary reputation for dedication and persistence that goes beyond maniacal. Their work ethic and ability to bring concepts into reality has been something to behold in NHRA pits for more than 50 years. To…
View More

Pro Stock engine builder profile: Frank Iaconio

We're taking you inside the minds of the engine builders who create the most powerful naturally aspirated 500-cid race engines on earth
16 Jun 2020
David Kennedy
Racing Technology
Frank Iaconio Pro Stock
Pro Stock engine builders have a legendary reputation for dedication and persistence that goes beyond maniacal. Their work ethic and ability to bring concepts into reality has been something to behold in NHRA pits for more than 50 years. To…
View More

Pro Stock engine builder profile: Warren Johnson

We're taking you inside the minds of the engine builders who create the most powerful naturally aspirated 500-cid race engines on earth
15 Jun 2020
David Kennedy
Racing Technology
Warren Johnson Pro Stock Engine Builder
The top-secret technology of Pro Stock that has been hidden away like the Holy Grail for the last 50 years isn’t what you might think. It’s not an exotic piston or connecting rod. It’s not a featherweight valvetrain. It’s not even a billet-…
View More

Engine Wars! F1 vs IndyCar vs Pro Stock vs NASCAR vs Top Fuel

Ever wonder how NHRA drag racing engines stack up against the world? Spoiler alert: We overpower every other motorsport on earth!
19 May 2020
David Kennedy
Racing Technology
NHRA vs NASCAR vs IndyCar vs F1
Racing engines have always been shrouded in secrecy because power promises the ultimate advantage. Drivers inherently want enough horses to break the tires lose everywhere on the track. Have too much power? Use less throttle. The motorsport with the…
View More

Tech Specs: Inside Chevy’s NHRA Pro Stock engine—The 500-cid DRCE

Shrouded in secrecy, Chevrolet’s Pro Stock Drag Race Competition Engine (DRCE) evolved the big-block Chevy into a 1,400-hp, 10,000-rpm, naturally aspirated motorsport weapon one race weekend at a time.
09 May 2020
David Kennedy
Gallery, Racing Technology
10
Tracing its roots to the Chevy Mark IV Rat Motor, the Chevrolet Performance Drag Racing Competition Engine (DRCE) delivers more than 1,400 electronically fuel-injected horsepower to a pair of Goodyears for a 6-second ride down the quarter-mile in an…
View More

NHRA Expertise: Torque wrench life hack for hard-to-reach bolts

Can’t fit a torque wrench between your engine’s oil pan and flexplate? Use a box-end wrench to extend the reach of your torque wrench.
07 May 2020
David Kennedy
Racing Technology
Torque wrench life hack
Here’s what you need: 3/8-inch drive torque wrench 12-point combination wrench with ½-inch wrench on one side and 7/16-inch wrench on the other This formula: M1 = M2 x L1 / L2 This…
View More

NHRA Expertise: Build a custom transmission dipstick for any car using AN fittings

Another use for AN fittings that you'll kick yourself for not thinking of sooner.
06 May 2020
David Kennedy
Racing Technology
Custom dipstick fix
Transmission dipsticks are one of the hassles of race cars. In factory applications their steel tubes snake up past the drivetrain and firewall to put the dipstick right where you need it. But in a one-off combination? Forget it. About the only…
View More

Show us what you’re working on!

This is project time, a season when social distancing means the safest place to be—is alone with your race car project. Send us photos of what you're working on.
05 May 2020
Posted by NHRA.com staff
Racing Technology
NHRA Projects TIG Welding
There are two places races are won, on the track, and in the garage. So what are you doing with this time to make your race car quicker? We want to see. Send us photos and videos of your car being prepped, your engine being built, your new cage…
View More

How you can transform a stock Mustang GT into a 10-second dragstrip monster

NHRA National Dragster Senior Editor Kevin McKenna wanted a car that was capable of 10-second elapsed times on the dragstrip and would be an effective weekly bracket racer, but it also needed to be suitable for daily driving. Was that too much to ask? Apparently not.
21 Apr 2020
Kevin McKenna, NHRA National Dragster Senior Editor
Racing Technology
We wanted a car that was capable of 10-second elapsed times, that was consistent enough to be an effective weekly bracket racer but also suitable for daily driving. Is that too much to ask? Apparently not. 9
Many of us still romanticize about the so-called “good old days” of hot rodding in the 1960s and ’70s when vintage muscle cars ruled America’s dragstrips and streets. But the truth is, those days still exist, and in many ways, things are better than…
View More

Grinding it Out: Tips to finding the best cam for your application

It’s often said the camshaft is the brain of the engine because it dictates the opening and closing of the valves, thus controlling the flow of air/fuel mixture to the cylinders. That’s the simple explanation, but there’s more to the story.
20 Apr 2020
Evan J. Smith, National Dragster Contributor
Racing Technology
The proper camshaft can lead to wheels-up, winning performance. 14
It’s often said the camshaft is the brain of the engine, but do you know why? It’s because the cam dictates the opening and closing of the valves, thus controlling the flow of air/fuel mixture to the cylinders. That’s the simple answer, but there’s…
View More

Drag Racing Vs.COVID-19: Buffalo Turbine offers its track-drying technology for large-scale disinfection

Long before we’d ever heard the term COVID-19, NHRA partners were poised to fight it with tremendous engineering and manufacturing capabilities
16 Apr 2020
David Kennedy
News, Racing Technology
Buffalo Turbine Spraying United States Capitol
Buffalo Turbine, the official track blower of NHRA, is a critical part of our track-preparation process. Its technology cleans and dries quarter-mile surfaces for racing’s quickest cars. But the same technology used to direct massive amounts of air…
View More

Drag Racing Vs.COVID-19: Toyota’s rapid-prototyping facilities helping hospitals

Long before we’d ever heard the term COVID-19, NHRA partners were poised to fight it with tremendous engineering and manufacturing capabilities
16 Apr 2020
David Kennedy
News, Racing Technology
3
Literally overnight, we saw additive-manufacturing labs (3D printing shops) that make drag racing parts, shift those capacities into making face shield…
View More

Tech Specs: Inside the supercharged Ford Cobra Jet Mustang

We’re taking a deep dive into the factory muscle cars, engineered in Detroit, and campaigned by NHRA Sportsman racers in the SAMTech.edu NHRA Factory Stock Showdown
13 Apr 2020
David Kennedy
Racing Technology
2019 Ford Cobra Jet Mustang
Of the Big Three, Ford has been in this arena the longest. It’s the only Detroit automaker that’s continuously produced a ponycar from ’64 ½ to ’20. It launched its Cobra Jet Mustang drag car (based on the Ford FR500C Grand Am road race car) a year…
View More

Tech Specs: Inside the supercharged Chevrolet COPO Camaro

We’re taking a deep dive into the factory muscle cars, engineered in Detroit, and campaigned by NHRA Sportsman racers in the SAMTech.edu NHRA Factory Stock Showdown
13 Apr 2020
David Kennedy
Racing Technology
2020 Chevrolet COPO Camaro for NHRA Factory Stock
The muscle car gods were smiling down on NHRA drag racers when Ford, Dodge, and Chevy began offering supercharged ponycars from the factory. It started when GM reimagined its historic ZL1 engine code as a performance package for the fifth-generation…
View More

VIDEO: How much nitro does a Top Fueler or Funny Car guzzle on a run?

Nitromethane by the bucketful fuels today’s 11,000-horsepower NHRA Top Fuel and Funny Car engines. Here’s what it looks like.
13 Apr 2020
Phil Burgess, NHRA National Dragster Editor
Racing Technology
Nitro
The NHRA Motorsports Museum includes an interactive display that simulates the massive amount of nitromethane that pours into each cylinder of a Top Fuel or Funny Car engine. The first seconds of the display show the amount of fuel being…
View More

NHRA Expertise: Make AN hoses—the easy way

Eight steps to make AN hoses in your garage, at the track, or at the shop
13 Apr 2020
David Kennedy
Racing Technology
How to make AN Lines in Eight Steps
One the fundamentals of building a drag car is plumbing. Fuel, oil, coolant, and hydraulic systems all need reliable and serviceable connections. In our world, that means AN fittings—an open-source fluid-transfer technology that dates back to World…
View More

Piping for Power: How to choose the best headers for your combination

Maximizing exhaust flow is a key element in obtaining peak performance from any high-performance engine. Before you buy your next set of headers, collectors, and/or mufflers, you'll need to understand a lot of factors, and we're here to help.
22 Mar 2020
Evan J. Smith, National Dragster Contributor
Racing Technology
29
Maximizing exhaust flow is a key element in obtaining peak performance from any high-performance engine. Whether it’s a 400-hp factory muscle car on 93 octane or a Top Fueler burning nitro, a properly designed set of headers will create optimum…
View More

Survive the Drive: Having the right tie-downs is key to keeping your race car secure

Having the right tie-downs and knowledge is key to keeping your race car secure inside the trailer on your way to, and from, your next race.
22 Sep 2019
Posted by NHRA.com staff
Racing Technology
Tie-downs
You head straight to the garage or shop every day after work. Late night after late night. Countless hours ensuring your dragster is prepped and ready for a pass that will take only seconds. Your i’s are dotted, and your t’s are crossed. Now imagine…
View More

Why you need an aftermarket harmonic balancer

Found at the front of the engine attached to the snout of the crankshaft, harmonic dampers are used to quell the harmonics of the crankshaft and are vital parts of your hot rod.
12 Aug 2019
Evan J. Smith, National Dragster Contributor
Racing Technology
Race Tech
A common part found on all high-performance engines is a harmonic damper (or harmonic balancer, as they are often called). Found at the front of the engine attached to the snout of the crankshaft, harmonic dampers are used to quell the harmonics of…
View More

How superchargers can take your race car to the next level

Evan J. Smith takes you behind the history of supercharging in drag racing and how you can best apply it to your vehicle.
12 May 2019
Evan J. Smith, National Dragster Contributor
Racing Technology
Blower Driver Services
Supercharging has long been a favorite of drag racers who recognize that Mother Nature alone cannot supply ample airflow to the cylinders. You’ll find superchargers in a variety of classes within NHRA, and of course, today, they are regularly used…
View More

How to pick valve springs for your race car

Valve springs are the unsung heroes of horsepower. Evan Smith dives into the basics of the parts that control the valve train in the latest Racing Technology column.
10 May 2019
Evan J. Smith, National Dragster Contributor
Racing Technology
Valve Springs
It could be said that valve springs are the unsung heroes of horsepower. Tasked with a critical job of controlling the valve train, valve springs operate in a harsh environment. They are rapidly cycled while being subject to great force, friction,…
View More