MP 1704: The Week In IndyCar, June 18 2026
The Marshall Pruett Podcast
MP 1704: The Week In IndyCar, June 18 2026 The Marshall Pruett Podcast · Jun 18, 2026
MP 1704: The Week In IndyCar, June 18 2026

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MP 1704: The Week In IndyCar, June 18 2026
Topic

IndyCar

IndyCar is a major American race series for open-wheel cars. Races happen on different kinds of tracks, and teams tune the cars to match each track.

Place

Mealy-Waquay

The transcript says “Mealy-Waquay,” but it’s probably the name of a race location that got spelled wrong in the captions. The key point is that the host is flying in early for the IndyCar weekend at that track.

Topic

practice session

A practice session is when teams get time on the track before the main event. They use it to figure out how the car feels and adjust so they’re ready to race.

Company

Penske Entertainment

Penske Entertainment is the company that owns and operates IndyCar. The host uses it to explain why the series is cautious about announcing engine-regulation details until they’re fully locked down.

Term

homologation

Homologation is the official sign-off that race rules and parts are approved. It’s how IndyCar decides what teams are allowed to change and what has to stay the same.

Term

service period

A “service period” is a set time window in the rules where teams are allowed to use a specific approved setup. During that window, some changes may be allowed while others aren’t.

Term

2.4 liter twin turbo V6

It’s an engine that has six cylinders arranged in a V shape, uses two turbochargers to make more power, and has a total displacement of 2.4 liters. The key point here is that IndyCar’s engine package is based on this twin-turbo V6 design.

Term

mothballed

“Mothballed” means something was put aside and not used for a while. It’s basically stored away instead of being actively used.

Term

NDA

An NDA is a legal promise not to share certain information. Here, it’s why people involved in the project can’t talk openly about what’s happening.

Place

Road America

Road America is a well-known race track. The cars go very fast there, and the host is saying Turn 1 is the most exciting place to watch because you can see them coming over a hill and then diving into the corner.

Term

crest that hill

“Crest that hill” means the car goes over the top of a bump or hill. The car’s behavior can change right after the crest, especially when it then has to head downhill into a corner.

Term

exit curbing

“Exit curbing” is the curb at the end of a turn. Drivers sometimes ride over it to stay on the quickest path, but it can make the car bounce or feel unstable.

Term

kink

A “kink” is a quick bend in the track. It’s not a big corner, but it can still be fast and tricky—here the host is saying another part of the track is more exciting to watch.

Term

qualifying

Qualifying is when drivers try to set the fastest lap to decide where they start for the race. The host suggests going then because the cars are set up to go as fast as possible.

Term

lowest fuel

Lowest fuel means the car has less gas onboard. Less weight usually helps the car accelerate and turn faster, which is why it matters most when drivers are chasing their best lap.

Term

gripped up

“Gripped up” means the tires have good traction. When grip is high, the car can turn and slow down more sharply without sliding.

Term

maximum attack

“Maximum attack” just means the driver is going all-out. They’re trying to squeeze the most speed and grip out of the car for the fastest lap.

Term

energy storage system

This is the battery-like part that stores energy so the car can use it later. In a race car, adding it can change weight and balance, which affects how the car brakes and turns.

Term

motor generator unit

The motor-generator is the electric unit that can help drive the car and also recharge energy when you slow down. Because it’s working during braking and deceleration, it can change how stable the car feels entering corners.

Term

braking zones

A braking zone is the part of the track where you slow down before turning. If the car’s braking behavior changes (for example, because of the hybrid system), it can be harder to brake as late or as confidently.

Term

tires

Tires are what actually grip the track. The host is saying the newer cars can make it easier to overdo the grip, so the car can slide or the tires can get destroyed faster.

Term

chassis

A chassis is the main “frame” of the race car. It’s the foundation that other parts attach to, and in IndyCar the rules can limit how much teams are allowed to customize it.

Dallara DW 12
Car

Dallara DW 12

The Dallara DW 12 is the main race car chassis IndyCar teams use. The series controls most of the design, so teams can’t freely change everything—they mostly work with approved parts and options.

Term

factory purchased parts

This means teams have to use parts that are officially provided/approved by the series or manufacturer. It limits how much teams can experiment or build their own unique setup.

I R 28
Car

I R 28

The “I R 28” is the next IndyCar race car chassis that teams will move to after the current one. The key point here is that the series will still limit what teams can change, even though some parts may carry over.

Term

magnesium

Magnesium and aluminum are metals used to make wheels. The lighter the wheel, the easier it is for the suspension to control the car over bumps, so changing wheel material can change how the car feels.

Brand

OZs

OZ is a company that makes wheels. In this IndyCar discussion, it’s being named as one of the wheel brands teams have been using before the new wheel rules take effect.

Brand

BBS

BBS makes wheels. The host is saying the next required wheel spec for IndyCar will come from BBS and will still be used when the newer chassis arrives.

Term

arrow lip

An “arrow lip” is a specific wheel-edge shape/feature that can influence airflow around the wheel. The host notes it helps the car aerodynamically, and that it’s being removed on the new front wheel design.

Term

aeroscreen

An aeroscreen is a protective clear shield above the driver’s head in IndyCar. It’s there to help keep debris away and improve safety in crashes. When people talk about “the aeroscreen car,” they mean the newer safety-era IndyCar setup.

Person

Scott Dixon

Scott Dixon is a top IndyCar driver. The host is arguing that he’s the best of his generation based on how many championships he’s won. The discussion is comparing his achievements to another driver’s streak.

Person

AJ Foyt

A.J. Foyt is one of the most famous IndyCar/open-wheel drivers in American racing history. The host is using him as a record-holder reference point for championships. The idea is: how many titles would it take for Dixon to match or beat the all-time best?

Term

hybrid

In IndyCar, “hybrid” means the car can save energy and then use it later to help with acceleration. It’s not just a normal gasoline-only setup—drivers and teams manage when that extra energy gets used.

Term

DW12 spec

“DW12 spec” is IndyCar’s specific ruleset for a particular generation of race car. Think of it like the official blueprint the teams have to build to, so everyone’s cars are comparable.

Term

manufacturer arrow kits

“Manufacturer arrow kits” are IndyCar bodywork/aero parts that differ by manufacturer. They can change how much grip the car has and how it behaves in corners, even though the series rules still keep things fairly controlled.

Term

Chevrolet

Chevrolet is mentioned as the car’s engine manufacturer in IndyCar. Different manufacturers can have different engine behavior, so teams may need to adjust how they set up and drive the car.

Term

universal arrow kit

A universal kit means IndyCar gives teams a more standardized body/aero package. That way, teams can’t gain huge advantages just by designing totally unique aero parts.

Term

custom aerodynamics

Custom aerodynamics are special shapes and parts on a race car that are made to help it handle better. If the rules take that away, everyone has to use more similar aero setups.

Term

downforce

Downforce is the “push down” from the air on a race car. More downforce usually means the tires stick better in corners, so the car can go faster and feel more stable.

Term

arrow screen

“Arrow screen” here appears to refer to a specific IndyCar aero/bodywork element introduced as part of the arrow kit era. It’s discussed as a first-year change, implying it affected car behavior and competition once teams adapted to it.

Concept

manner in which championships are earned

They’re talking about how you win a championship—whether it’s by dominating races, being consistently near the front, or scoring in a particular way. That affects how we compare drivers from different years.

Person

Alex Palo

Alex Palou is an IndyCar driver. The host is saying Palou is currently driving at an especially high level, which makes the comparison to Scott Dixon interesting.

Person

Kyle Kirkwood

Kyle Kirkwood is an IndyCar driver. The host mentions him as someone who could potentially join the conversation about the very best drivers right now.

Term

push to pass

“Push to pass” is a button/feature in some race cars that temporarily gives you extra power so you can overtake. The rules control when and how it can be used, so teams can’t just change it however they want.

Term

race control

“Race control” is the officials’ command center during a race. They watch what’s happening and make sure rules are followed, including controlling certain car features.

Term

engine control modules

Engine control modules are the car’s main computers for the engine. They help control things like how high the engine can rev, and the rules can restrict who is allowed to change them.

Term

ECM ECU

ECM/ECU are the engine’s control computer. It decides how the engine runs, including limits that keep the car within the rules.

Concept

compliance

In motorsport, “compliance” means meeting the technical and software rules set by the sanctioning body. The discussion here centers on which onboard systems teams can modify versus which must remain controlled by manufacturers to stay within those regulations.

Term

rev limits

Rev limits are the maximum RPM the engine is allowed to reach. The car’s computer enforces them to protect the engine and stay within the rules.

Brand

Chip Ganassi Racing

Chip Ganassi Racing is a well-known IndyCar racing team. The host is saying that the team’s whole setup has been built around a specific driver for a long time.

Term

engineered, developed, tuned

It means the team doesn’t just build a car once—they keep improving it and adjusting it so it feels right for the driver. The host is arguing that leaving that kind of tailored setup means starting over.

Person

Alex Polo

Alex Polo is an IndyCar figure the host credits with results. The point here is that results don’t necessarily mean the whole team is built around him the way it is for Scott Dixon.

Person

Pato Award

This sounds like the host is talking about Pato O’Ward, an IndyCar driver. The key idea is that the car and team have been set up around him, so switching teams would mean giving that up.

Person

Aaron McLaren

The host is talking about a rumored driver move involving someone named “Aaron McLaren.” The transcript text looks uncertain, but the idea is that the driver would be considering switching teams.

Person

Christian Lundgaard

Christian Lundgaard is an IndyCar driver. The host is saying he helped the team organize how they develop and fine-tune the car more centrally.

Term

number one or number two driver

Teams often have a main driver they focus on first, and another driver who gets support second. The host is saying that even if a driver is fast, the team might still be organized around someone else as the top priority.

Brand

Andretti Global

Andretti Global is a racing team in IndyCar. The host is comparing it to staying with the team that’s already built around you versus joining a new team and having to rebuild everything.

Term

charters

A charter is like a guaranteed spot for an IndyCar team to race. The discussion is about rules that restrict how many extra (non-chartered) cars can show up at most races, which affects how valuable those guaranteed spots are.

Topic

2027 rules

The hosts are talking about IndyCar’s planned rules for 2027. The key issue is whether teams without guaranteed spots can run extra cars, and the host thinks the decision is poorly timed.

Term

non charter cars

Non-charter cars are race entries that don’t have the guaranteed charter slot. The host is saying that starting in 2027, teams without charters would be blocked from running extra cars at most IndyCar races (with the Indy 500 as the exception).

Car

DW12s

The DW12 is the main IndyCar race car chassis that teams have been using. The point here is that teams could run extra cars using the older DW12 before it’s replaced, which would help them make more money.

Term

NXT

NXT is a feeder series where younger drivers race to develop and move up. The host is saying teams might use extra funding to support those drivers instead of running extra cars.

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