MP 1704: The Week In IndyCar, June 18 2026

IndyCar is the top open-wheel racing series in North America, featuring purpose-built race cars and a mix of oval and road-course events. The series emphasizes driver skill plus engineering setup work across different track types.

“Mealy-Waquay” appears to be a mis-transcription of a race venue name, likely referring to an IndyCar stop. Because the exact track name isn’t clear from the transcript text, listeners may need the show’s full audio or corrected spelling to identify the circuit.

In IndyCar, a practice session is on-track time where teams test setups, tire behavior, and driving approaches before qualifying and the race. It’s when engineers and drivers gather data to improve performance for the weekend.

Homologation is the formal approval process for race-car parts and specifications. In IndyCar, it determines what can be changed (and when) under the engine-regulation rules so teams can develop within the approved framework.

In racing engine rules, a “service period” is the defined window during which teams can operate under a particular homologated specification and schedule. The host is framing it as the time when certain parts are open for approval changes.

A 2.4-liter twin-turbo V6 is a V6 engine with two turbochargers feeding compressed air into the cylinders. In this IndyCar context, the host says the current engine platform is shared in concept by Chevrolet and Honda, and that the “motors themselves are done” while the regulation details are still being finalized.

To "mothball" something means to take it out of active use and store it away, usually because it isn’t ready or won’t be used yet. In racing terms here, it suggests engines that were built but never started running in anger, then were stored instead of being installed and raced.

An NDA (non-disclosure agreement) is a legal contract that prevents people from sharing details publicly. In this context, it explains why manufacturers and teams can’t freely discuss the 2028 IndyCar hardware and testing plans.

Road America is a famous road course in the U.S. known for long straights, big elevation changes, and fast, flowing corners. In this segment, the host focuses on how Turn 1 is visually dramatic because cars crest a hill and then brake/turn downhill into the corner at very high speed.

“Crest that hill” refers to the car reaching the top of a rise, where suspension and aerodynamic load can change quickly. On a downhill run into a corner, cresting can make the car feel especially light or unsettled before it commits to the turn.

“Exit curbing” means using the raised curb at the exit of a corner, typically to help the driver keep the car on the fastest line. The host mentions cars “crashing over” it, highlighting how aggressive curb use can unsettle the car and cause bouncing.

A “kink” is a short, often fast direction change in a track layout—less of a full corner and more of a quick bend. The host compares the visual drama of Turn 1 versus the kink in Turn 11, saying Turn 1 feels more dynamic to watch.

Qualifying is the session where drivers set their fastest lap times to determine starting positions for the race. The host recommends watching Turn 1 during qualifying because cars are typically running with low fuel and maximum effort, making the speeds and car behavior especially intense.

“Lowest fuel” refers to running the car with very little fuel onboard, which reduces weight and helps lap times. The host ties it to qualifying, where cars often carry minimal fuel to maximize speed and responsiveness.

“Gripped up” describes a car that has strong tire grip, allowing it to brake, turn, and accelerate with confidence. The host connects it to qualifying conditions, implying the tires and setup are delivering their best traction for the lap.

“Maximum attack” is a racing phrase meaning the driver is pushing the car as hard as possible—braking later, turning in aggressively, and holding speed through the corner. Here it’s used to explain why Turn 1 during qualifying looks so extreme.

An energy storage system in a hybrid race car is the component that stores electrical energy for later use. In IndyCar, it’s paired with an electric motor/generator, and its mass and packaging can influence handling, especially under braking and in corner entry.

A motor generator unit (MGU) is the hybrid component that can both provide electric power (as a motor) and generate electricity during deceleration/braking (as a generator). That energy recovery changes how the car manages traction and braking, which can alter cornering confidence.

“Braking zones” are the specific track areas where drivers slow down for a corner. In racing with hybrid systems, the way energy recovery and braking forces are managed can affect how consistently the car can decelerate and rotate into the turn.

In racing, “tires” are the consumable contact patch that determines grip and how much the car can be pushed before it loses traction. The host’s point is that the newer hybrid-era setup makes it easier for the car to overwhelm the tires, leading to loss of control or excessive tire damage.

In racing, a chassis is the car’s main structural platform that everything else mounts to—suspension, aero components, and the drivetrain package. The host contrasts older IndyCar practices (teams building or buying chassis and then adding custom parts) with the newer era where teams have less freedom to individualize the car.

The Dallara DW 12 is the IndyCar chassis used in the 2020s, built around the series’ current technical regulations. In this segment, the host is framing the DW 12 as a “continuation” baseline for the next generation, with factory-approved options and limited scope for team-by-team customization.

“Factory purchased parts” means components teams must buy through the approved supply route rather than sourcing or designing their own. In this segment, it’s used to argue that the new IndyCar rules reduce team-by-team personalization by restricting what’s allowed on the car.

“I R 28” refers to the next IndyCar chassis generation coming after the DW 12 era. The discussion emphasizes that it will be delivered with factory-approved parts/options and that only certain areas (like wheels) are expected to carry over from the DW 12 program.

Magnesium is a lightweight metal used in some racing wheels to reduce unsprung mass. The host says IndyCar teams are switching wheel material from magnesium to aluminum ahead of the next chassis generation, which can affect weight and handling characteristics.

OZ (OZ Racing) is a wheel brand commonly seen in motorsport and performance applications. Here it’s mentioned as a dominant supplier in the current IndyCar wheel ecosystem before the new spec wheels arrive for the next chassis cycle.

BBS is a well-known wheel manufacturer with a long motorsport history. The host says the new wheels required for 2027 will be made by BBS and will carry over into the 2028 car program.

The aeroscreen is IndyCar’s cockpit safety device: a clear protective screen mounted above and around the driver to help deflect debris and reduce head injury risk. It became a defining feature of the “modern” IndyCar era referenced here. When someone says a driver has only raced in the “aeroscreen car,” they mean the post-introduction safety configuration.

Scott Dixon is an IndyCar driver and the dominant championship figure in the modern era. The host frames him as the “modern goat,” emphasizing his American IndyCar career and the scale of his title success. This matters to listeners because the Dixon-vs-Polo debate is really about how to compare championship eras and competition levels.

A.J. Foyt is a legendary American open-wheel racing driver and a historical benchmark for IndyCar championship records. The host mentions Dixon needing to reach “seven” to match Foyt, and “eight” to take the all-time lead. That comparison is central to how IndyCar fans talk about “greatest of all time.”

In IndyCar, the “hybrid” refers to an energy-recovery system that supplements the car’s power. It stores energy under braking and deploys it to help acceleration, changing how the car is driven and how teams manage power throughout a race.

“DW12 spec” refers to the IndyCar chassis/engine package associated with the Dallara DW12 generation. It’s a specific technical rule set that defines the car’s baseline design and performance characteristics, so results across years can be compared within that framework.

“Manufacturer arrow kits” describes a period when IndyCar introduced manufacturer-specific aerodynamic “arrow” bodywork components. The goal was to let engine manufacturers express themselves aerodynamically while still staying within the overall IndyCar rules, which can materially affect downforce and balance.

Chevrolet is referenced here as the engine/manufacturer partner in IndyCar. In the hybrid-era and aero-rule changes, switching manufacturer relationships (Chevrolet vs Honda) can influence engine characteristics and how teams optimize the car’s overall setup.

The “universal arrow kit” is a standardized IndyCar body/aero package intended to limit how much teams can develop unique aerodynamic solutions. The goal is to reduce performance gaps driven by aero experimentation and make racing outcomes more about driver skill and setup within tighter constraints.

Custom aerodynamics refers to team-specific aerodynamic parts and shaping that are designed to maximize performance beyond the baseline rules. When a series moves toward more standardized aero packages, it reduces how much teams can differentiate with bespoke bodywork and wings.

Downforce is the aerodynamic force that pushes a race car downward to increase tire grip. In IndyCar, changes to aero rules can drastically alter how much downforce teams can generate, which affects cornering speed and stability.

This is a discussion concept about how championship points and race results translate into overall titles. The hosts are arguing that the “how” (dominance, consistency, points structure) matters when comparing achievements across eras.

Alex Palou is an IndyCar driver discussed here as being “at his peak right now,” with recent championship success. The host frames Palou’s current dominance as a key part of the comparison against Scott Dixon’s historical peak.

Kyle Kirkwood is an IndyCar driver mentioned as a possible future challenger in the conversation about who could match Alex Palou at his peak. The host is using him as a “maybe” candidate among current drivers.

“Push to pass” is a race feature that gives an extra performance boost for a limited time or under specific rules. In IndyCar, it’s managed by the car’s control systems and governed by regulations so teams can’t freely alter how it works.

“Race control” is the centralized officiating and management team that monitors the race and enforces rules. For features like push to pass, race control can control or authorize aspects of the system to keep competition compliant.

Engine control modules (ECMs) are the car’s onboard computers that manage engine functions. They can enforce critical limits like rev limits, and in IndyCar rules the manufacturer controls them heavily to prevent teams from changing compliance-critical behavior.

ECM/ECU are acronyms for the engine control unit/computer. They’re the onboard electronics that run the engine’s control logic, including compliance-related settings such as rev limits.

Rev limits are programmed maximum engine speeds (RPM) that the ECU/ECM enforces. They’re important in racing because they protect the engine and also help keep cars within the performance and compliance rules.

Chip Ganassi Racing (often shortened to Ganassi) is a major IndyCar team with a long history of building competitive cars around top drivers. In this segment, the host emphasizes that the #9 Honda program has been structured around Scott Dixon for years.

These words describe the iterative process of setting up an IndyCar for a specific driver: engineering the car’s baseline, developing updates over time, and tuning the setup to match the driver’s feedback and driving style. The host’s point is that Dixon’s long tenure means the car and team are optimized around him.

Alex Polo is mentioned as the person “getting the results” and the championship in the context of the Ganassi program. The host’s argument is that even if Polo has produced results, the overall team identity and long-term build direction are still tied to Scott Dixon.

“Pato Award” appears to be a mis-transcription of Pato O’Ward, an IndyCar driver. The host repeatedly emphasizes that the team and car have been built around him, which is central to the argument about why leaving that setup would be unusual.

“Aaron McLaren” is likely a mis-transcription of a driver name (the segment discusses a rumored move involving “Aaron McLaren specifically”). Because the name doesn’t clearly match a known IndyCar driver as written, this annotation is low-confidence and mainly flags that the host is discussing a specific rumored driver candidate.

Christian Lundgaard is mentioned in relation to helping bring development and tuning “to a more central position.” That implies a shift in how the team organizes feedback and car development work across drivers and engineers.

In IndyCar (and other motorsports), a “number one” driver is the team’s primary priority for strategy, development focus, and support, while a “number two” driver is typically secondary. The discussion here is about how driver roles affect whether a driver is truly moving into a team built around them.

Andretti Global is an IndyCar team organization. Here, it’s used as an example of a different team environment where a driver would be starting from scratch rather than keeping a car and organization already optimized around them.

In IndyCar, a charter is a team’s guaranteed entry right—essentially a slot that lets the team compete in the series. The host argues the rule change is meant to “inflate charter value,” limiting how many non-chartered cars can race at events (except the Indy 500).

This segment centers on IndyCar’s planned 2027 rule changes affecting how many non-chartered cars can enter races. The host criticizes the timing, arguing teams need every chance to earn money as costs rise.

“Non-charter cars” are entries that do not have a charter-guaranteed spot, meaning they can be limited or excluded by entry rules. The host says the 2027 rules would allow zero non-chartered cars to run at every race except the Indy 500.

In IndyCar, the DW12 is the long-running chassis platform used by most teams in the series. The host is talking about “DW12s” as the outgoing generation that teams can run to earn extra money before it’s retired.

NXT is IndyCar’s development ladder series, used to give drivers a path toward higher-level IndyCar competition. The host mentions running “kids” in NXT as an alternative use of money if teams can’t run extra cars in the main series.