Why Do NASCAR Cars Push Each Other? Racing Tactics Explained

What the Hell Is a Push in NASCAR Anyway?

If you've watched any NASCAR race and seen two cars driving nose-to-tail at 180 mph like some kind of mechanical centipede, you've witnessed push drafting in action. One car tucks behind another, and instead of just riding the draft, the trailing car actually shoves the car in front forward. It's not gentle bumping. It's deliberate, calculated contact designed to break physics.

Most fans think drafting is just about one car hiding behind another. That's the basic slipstream effect. But pushing? That's a different animal entirely. When a car gets pushed, it travels faster than it could on its own because the trailing car is essentially adding extra horsepower through pure momentum transfer.

Teams spend countless hours perfecting this. Drivers practice the timing, the pressure, the exact spot on the bumper where contact matters most. It's not chaos—it's engineered aggression.

Why Do Drivers Actually Do This?

The physics is brutally simple. Air resistance kills speed. When a car leads, it punches through the air and creates a low-pressure zone behind it. The trailing car slips into that pocket and gains speed without using more fuel. That's normal drafting.

But when you add a push, you're doing something the engine alone can't do. You're giving the lead car extra momentum. The trailing car essentially becomes a battering ram, transferring its kinetic energy forward. Both cars go faster than they would running alone or even running standard laps.

Here's what drivers actually gain:

• Straightaway speed – Cars can hit speeds 5-10 mph faster with effective pushing
• Fuel economy – Less throttle input needed when being pushed
• Breakaway capability – Escape the main pack when it matters
• Tire management – Reduced stress on engines during long runs

The Push Draft: How Two Cars Become One

Tandem drafting—two cars linked together—became infamous around 2012-2014 when rules changes forced drivers to get creative. The cars would literally touch bumpers for miles, trading positions constantly, neither able to break away alone.

When a push car gets close enough, the lead car's rearend becomes a fulcrum. The push car applies pressure at exactly the right angle, and suddenly you're looking at a two-car unit that handles corners better and accelerates harder than anything running solo.

Drivers communicate constantly during this. Radio chatter is non-stop—calling out push intensity, when to back off, when to lean harder. One wrong move and both cars spin. The margin between perfect and disaster is measured in inches.

When Does This Tactic Actually Get Used?

Not every race situation calls for bump drafting. Teams deploy this strategically:

• Late race comebacks – When you need to make up seconds in a hurry
• Breaking away from the pack – Creating separation from 20+ cars fighting for position
• Defending a lead – Using a teammate to pull away from pursuers
• Green flag pit strategy – Maintaining position while others pit

The worst time to try it? Early laps when fuel loads are heavy and tires are cold. The cars are unstable, drivers are still feeling out the track, and one mistake takes out half the field. Experienced teams wait until the run is long enough to matter.

The Risks Nobody Talks About

Pushing looks cool on TV. It's also incredibly dangerous. When two cars traveling at 190 mph are locked together, a slight miscalculation becomes a multi-car wreck instantly.

Heat is the silent killer. Radiators push air to the front of the car. When you're constantly behind another car, your cooling system works overtime. Engines overheat. Brake rotors fade. Drivers have to balance aggression with survival.

There's also the relationship dynamic. Drivers need to trust each other completely. Even teammates have disagreements about who gets pushed and when. Some drivers refuse to push certain competitors because they don't trust their line or their ability to hold steady through corners.

Push Drafting vs. Traditional Drafting: What's the Difference?

Most people use "drafting" and "pushing" interchangeably. They're not the same thing. Here's how they stack up:

Traditional drafting is passive. You're riding someone's air. Push drafting is active—you're making something happen. The difference in speed output is substantial enough that teams will sacrifice track position just to find a reliable push partner.

Getting Started: How Teams Practice Push Drafting

If you're a team wanting to run this tactic, here's what actually matters:

Step 1: Identify Compatible Partners

Not every car can push every other car effectively. Bodywork differences, horsepower output, aerodynamic profiles—all factor in. Teams test combinations during practice sessions, measuring top speeds and corner exit rates.

Step 2: Establish Communication Protocols

Drivers need to know exactly what they want. "Give me a push" means nothing without specifics. Teams establish hand signals, radio codes, and timing sequences before ever hitting the track together.

Step 3: Master the Entry Zone

The hardest part isn't maintaining contact—it's establishing it. Drivers practice the approach angle, the closing speed, and the exact moment to apply pressure. Too fast and you pile-drive the lead car into the wall. Too slow and you lose the push entirely.

Step 4: Practice Exit Strategies

Every push run ends. Drivers must know how to separate cleanly without causing aerodynamic turbulence that kills both cars' momentum. This is where most accidents happen—guys who can't let go gracefully.

The Bottom Line

NASCAR cars push each other because speed matters more than anything else. The push draft is a weapon—brutal, efficient, and unforgiving. When it works, it looks effortless. When it fails, it takes out half the field.

Teams use it because the rules sometimes force their hand. Aerodynamics create situations where working together beats racing against each other. Drivers accept the risk because winning requires it.

Next time you see two cars locked together at Daytona or Talladega, understand what's happening: physics being exploited, trust being tested, and a whole lot of metal held together by nothing but nerve and timing.