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The Undercut – The Chevy Situation

The Undercut – The Chevy Situation

The V8 Sleuth Podcast Jun 04, 2026 62 min
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About this episode

The Undercut – The Chevy Situation moves from Winton Festival of Speed hype into a deep dive on why Chevrolet’s package has “remained constant” while rivals chase changes. Hosts weigh qualifying versus race consistency, pole incentives, and how rules like sprint weekends and Gen 3 constraints limit development. They connect Tasmania and upcoming long-race weekends to setup and aero balance, including braking stability and front sensitivity. The conversation also touches on reliability trends, safety-car frequency, and parity debates—then closes with a Castrol commercial vault segment.

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Technical Too Afraid to Ask
Place

Simmons Plains

"There's Saturday performance down at Simmons Plains. It was pretty good."

Simmons Plains is a race track where motorsport events happen. The host is talking about how well the teams did there on Saturday.

Person

Chas Mostert

"Pole position in both races, Chas Mostert, Andre Heimgartner, both respectively then went on to win each of those races."

Chas Mostert is a professional race driver. Here, the host is saying he did well—starting from pole and then winning.

Term

pole position

"Pole position in both races, Chas Mostert, Andre Heimgartner, both respectively then went on to win each of those races."

Pole position means the driver starts the race from the very front. It usually comes from being the fastest in qualifying, so they get a head start compared to everyone else.

Person

Andre Heimgartner

"Pole position in both races, Chas Mostert, Andre Heimgartner, both respectively then went on to win each of those races... I think Andre Heimgartner and BJR to get that win."

Andre Heimgartner is a professional race driver. The host is praising him for winning races and doing very well in qualifying.

Company

BJR

"But I think Andre Heimgartner and BJR to get that win... It was Tazzie last year where they announced the deal that BJR would become the other Toyota team for this year."

BJR is a racing team. The host is saying BJR is partnering with Toyota to run cars this season, which is why their results matter.

Term

in-cam waters

"there was that fight about B grade drivers with the in-cam waters. I think we forget sometimes how good Andre Heimgartner is because he's not in one of"

“In-cam” means the broadcast shows what’s happening from a camera mounted on the car. The host is referencing a past debate about certain drivers and how the coverage made them stand out.

Term

dry conditions

"And as Andre sort of highlighted, his first win in dry conditions. So, you know, that's nice to also, you know, tick off any time you get to put those little stickers, you know, on the car..."

“Dry conditions” means the track isn’t wet. That usually makes the car easier to drive consistently, and it can highlight how well someone performs when it’s not raining.

Term

pole sticker

"So, you know, that's nice to also, you know, tick off any time you get to put those little stickers, you know, on the car, the little pole sticker and all the race wing stickers."

“Pole” means the driver was fastest in qualifying and gets to start first. A “pole sticker” is just a sticker on the car showing they earned that top starting spot.

Concept

cash on the line

"So yeah, there is cash on the line, obviously fantastic support back in and"

“Cash on the line” describes bonus prize money or incentives tied to race outcomes (like wins, pole, or championship performance). In motorsport, these payouts can materially affect team strategy and driver motivation across the season.

Concept

driver's contract

"Really sort of depends on each individual driver's contract."

A driver’s contract is the agreement between the driver and the team. It can include extra money for certain results, like qualifying well or performing well in races.

Term

Trans Am Pole

"What about your deal? If you get a Trans Am Pole, is there any money on the line?"

“Pole” means you qualify fastest, so you start the race from the front. “Trans Am Pole” is the same idea, but for the Trans Am racing series.

Car

Ford Falcon

"You might not have heard of this gentleman, but he drives a PerTech Stonebrothers Falcon."

This is a race-prepped Ford Falcon. It’s built and supported by teams (here, PerTech and Stonebrothers) to compete in V8-style touring car racing.

Term

V8 supercar

"potentially the newest V8 supercar, supercars ambassador in the United States."

A “V8 supercar” is a race car category built around a V8 engine. It’s known for hard, close racing—especially in Australia—rather than being a typical street supercar.

Term

ride car

"So do you remember Stonebrothers had a ride car? ... Dedicated ride car."

A “ride car” is a race-prepped car used to give passengers rides at events. It’s set up so people can experience the track without needing to drive themselves.

Term

prepped

"He's ended up acquiring that car, taking it to the US out of New Zealand, getting it prepped."

“Prepped” means the car was set up and checked so it’s ready to run on track. Think inspection and setup work so it can be driven hard safely.

Term

livery

"It's in a per-tech livery and he's been running it at various tracks in the United States."

A “livery” is the car’s paint and sticker design—its look. In racing it often includes team colors and sponsor logos.

Car

Ford Mustang

"...tory Moff in motor racing, your old man's Transat Mustang, Dick Johnson's Mustang. And of course, they're b..."

The Ford Mustang is a performance car made by Ford, famous for strong engine power and a sporty look. People talk about it a lot because it has been used in racing and has a big history in motorsport. That’s why it shows up in stories about drivers and cars.

Place

Sydney Motorsport Park

"Yeah, that's a I find that a bit of a tricky one to answer because we forget he came out and won a race at Sydney Motorsport Park. So and looked pretty dominant up there as well."

Sydney Motorsport Park is a race track in Australia. They’re saying Brock did really well there, including winning and looking strong.

Topic

AGP

"So obviously the AGP didn't quite go to plan for him. And for Brock and Red Bull Racing standards, the New Zealand swing was relatively quiet for them..."

AGP is shorthand for a particular race weekend in the series they’re talking about. In this discussion, they’re focusing on how that weekend’s format changed how much a bad result would hurt.

Brand

Red Bull Racing

"So obviously the AGP didn't quite go to plan for him. And for Brock and Red Bull Racing standards, the New Zealand swing was relatively quiet for them..."

Red Bull Racing is a well-known racing team brand. They’re using it as a reference point for what kind of results the driver is expected to deliver.

Topic

Jason Richards trophy

"the New Zealand swing was relatively quiet for them, even though he won the Jason Richards trophy. So his consistency has been there the whole time."

The Jason Richards trophy is an award given in that racing series. They mention it to show Brock was doing well overall, not just having one good race.

Term

DNF

"So far this year in 2026, that one DNF at the AGP, which was obviously well spoken about."

DNF means the driver didn’t finish the race. Usually that happens because of a crash or a car problem, and it usually hurts their points for the weekend.

Term

points

"At least it was in a low points race, though, four race format at the Grand Prix. So if you DNF one, you didn't lose as many points as you could have in other weekends."

Points are how racing series keep score over the whole season. If you finish well you get more points, and if you don’t finish (like a DNF) you usually lose out.

Term

four race format

"At least it was in a low points race, though, four race format at the Grand Prix. So if you DNF one, you didn't lose as many points as you could have in other weekends."

A “four race format” means there are four races across the weekend. Because there are more races, one bad race (like not finishing) can hurt less than it would if there were only one or two races.

Brand

Triple 8

"Oh, well, I had that penciled into because Triple 8 in Tassie in a long 84 lap race there, their history is phenomenal. They won more of them than anybody else..."

Triple Eight is a racing team. The host is saying their past results in Tasmania are so strong that they expected a Triple Eight car to win.

Term

Friday practice

"their approach to race weekends and races of OK, you don't have to claim all the headlines in Friday practice, but the longer the race,"

Friday practice is the early testing session during a race weekend. It helps teams adjust the car, but being best in practice doesn’t automatically mean you’ll win the main race.

Place

Tassie

"And really down in Tassie, their ability to make their car better, especially by Sunday, was was very impressive. Like their car on Friday, just watching it."

“Tassie” is short for Tasmania, and it’s a place where the track can be tough on braking. If a car isn’t stable when you slow down, it shows up more clearly there.

Concept

make their car better, especially by Sunday

"And really down in Tassie, their ability to make their car better, especially by Sunday, was was very impressive. Like their car on Friday, just watching it."

They’re talking about how teams improve the car over the weekend. They test and adjust during practice, then try to have the car working best by Sunday for the main race.

Term

in-car stuff

"It's a bit of the in-car stuff that was on the broadcast. It was not a very nice car to drive."

“In-car stuff” refers to onboard footage and telemetry-style views shown during broadcasts—things like steering inputs, braking points, throttle application, and how the driver manages the car. It helps viewers understand why a car feels unsettled or stable at specific moments.

Term

instability under braking

"Browns looked really good. Yeah, they were quite unsettled and a lot of instability under braking, which, you know, you need very good stability down at Tassie under brakes."

It means the car feels a little “out of control” when you hit the brakes. Instead of staying stable and straight, it can wiggle or slide, which usually points to a setup problem or tires not working well under heavy braking.

Place

Darwin

"I mean, Darwin has been dominant. Stranglehold on that joint the last couple of years. You've got some long races coming up there."

They’re talking about Darwin as a race location. The idea is that the conditions and race length there tend to favor the kind of car and driving style the team has been showing.

Place

Townsville

"You've got some long races coming up there. Townsville, you get the 200 K races. You start to get the stuff that really starts to suit Triple 8 cars and Brock Feeney."

Townsville is another track they’re looking ahead to. They mention it alongside long races, meaning it’s more about staying consistent for a long time than just being fast for a few laps.

Term

sprint weekends

"Yeah. And I think also with the sprint weekends [778.9s] that we've seen the Park Fermi rules in place,"

A sprint weekend is a race event where there’s a shorter race before the main one. That short race helps decide where cars start for the big race on Sunday.

Term

Park Fermi rules

"that we've seen the Park Fermi rules in place, [782.5s] that clearly with the two different compound of tires,"

These are race rules that affect what tires teams are allowed to use. The big idea is that it can force teams to deal with more than one tire type, which changes how they set up the car.

Term

two different compound of tires

"that clearly with the two different compound of tires, [785.5s] the soft and the super back to back qualifying"

Tire compounds are different types of rubber. One type usually grips more but wears faster, and the other lasts longer, so the car setup that works best can change between them.

Term

soft

"the soft and the super back to back qualifying [788.5s] and not being able to change your setup that some cars"

“Soft” is a tire rubber that usually sticks to the track really well. The tradeoff is it tends to wear out faster than harder tires.

Term

back to back qualifying

"back to back qualifying [788.5s] and not being able to change your setup that some cars"

This means qualifying happens in quick succession. If you don’t have time to change the car much between sessions, you need a setup that can work for more than one run.

Concept

you can't be great at everything

"It's kind of that you can't be great at everything [810.0s] No, you can't."

In racing, you can’t make the car perfect for every situation. If conditions change, the setup that’s best for one part of the weekend can be worse for another.

Term

parody formula

"It's the topic that we'll never get away from in supercars because it is a parody formula."

They’re talking about “parity,” meaning the rules are meant to keep different cars fairly matched. If one car starts to get too strong, the series may adjust things so the competition stays close.

Car

Chevrolet Camaro

"...mean, we've had a couple of tweaks already to the Camaro. It was declared last year."

The Chevrolet Camaro is a sporty car made by Chevrolet, designed for performance and driving fun. The podcast is referring to updates that were made after it first came out. Those changes can be things like adjustments to how it drives or how it’s set up.

Term

controlled spec car

"Well, until you have a controlled spec car across the whole field, like Carrera Cup, parody will never end."

A “spec car” is a race car where the rules tightly limit what teams can change. That helps keep cars closer in performance without constantly adjusting the rules.

Term

homologation

"So, yeah, and don't forget the homologation teams [907.7s] in this whole process are always going to try and manipulate [911.2s] course to their advantage."

Homologation is the official approval process that makes a race car eligible to race under the rules. Teams then try to get every possible advantage while still staying within those rules.

Term

race averages

"So, of course, I mean, look at, look at some of the numbers. [920.1s] We've got some of the numbers here. [920.9s] If you look at the race averages for the Chevy's and bearing in mind, [924.2s] there's team and driver elements at play in all of this."

Race averages are a way to look at results over many races and see the overall trend. It helps you compare teams, but drivers and teams can still change the outcome.

Term

delta change

"So, you know, the first time that the Chevy teams are a delta change in terms of their aerobalance, probably another question, though, if Triple A remained a Chevy team..."

“Delta change” just means “how much it changed” compared to before. Here they’re talking about the size of the update to the car’s aerodynamics.

Term

aerobalance

"So, you know, the first time that the Chevy teams are a delta change in terms of their aerobalance, probably another question, though, if Triple A remained a Chevy team..."

Aerobalance is the balance of aerodynamic forces—mainly downforce and drag—between the front and rear of a car. When the host says there’s a “delta change” in aerobalance, they mean a measurable shift in how the car’s aero affects handling, which can change lap times and tire wear.

Term

qualifying performances

"You go back through his qualifying performances this year and he is traditionally great qualified. Low digits, low single digits."

Qualifying is when drivers try to set the fastest lap before the race. Your qualifying result usually decides where you start on the grid, so it’s a good clue about how fast the car is in a single lap.

Term

consistency

"But to be a factor in the championship, you're going to need speed. The consistency will get you so far that at the moment, based on what we've seen, the sample size we've had this year, they're not good enough to win the championship."

Consistency is about doing well again and again, not just having one great race. In a points-based championship, finishing strong regularly can matter as much as outright speed.

Concept

sample size

"The consistency will get you so far that at the moment, based on what we've seen, the sample size we've had this year, they're not good enough to win the championship."

Sample size just means how many examples you’ve looked at. If you only have a few races to judge from, it’s easier to be misled by short-term results.

Term

finals

"And I think deep in their hearts, they kind of knew too that they weren't going to get through that to get cars into the finals. Well, they're going to have to do this year."

In some racing series, there are early rounds and then a later “final” stage. The point is that you have to perform well enough earlier to qualify for those last races.

Term

wheels interlocking

"So, you know, we have an issue with probably the wheels interlocking that, you know, create issues when we do have a fix come for that side by side contact."

This is when two cars bump so closely that their wheels get tangled together. When that happens, the cars can’t move normally and the damage can be hard to recover from.

Term

red diffuses

"Probably the only other thing that I see that, you know, if somebody gets whacked up the ass hard enough, you know, that the red diffuses are quite weak and, you know, you sort of suffer for the rest of the race."

“Red diffuses” sounds like a race-car part that helps shape airflow. If it’s weak and gets damaged in a big hit, the car can feel worse for the rest of the race.

Term

safety car

"But apart from that, yeah, we we're not seeing the intervention of the safety car that much. I think it's been six races out of 16 so far this year."

The safety car is a real car that comes out to slow everyone down when something unsafe happens on the track. It keeps drivers from racing at full speed until the track is clear again.

Concept

rookies

"So I think on the whole with quite a few rookies and second year drivers in the field, the quality's been generally pretty good for race impacting scenarios."

“Rookies” are drivers who are new to the series. New drivers often make different choices under pressure, so it can affect how many crashes or incidents happen.

Term

wind tunnel

"So I guess the process, I wasn't involved in it and I think just the way the wind tunnel and everything happened,"

A wind tunnel is a controlled test space where air is blown over a car shape. Engineers use it to see how the car cuts through the air and how much “push down” it gets for grip at speed.

Term

front sensitive

"rather than them matching you. Yeah. And that just put us way too front sensitive to lose."

“Front sensitive” means the car’s handling depends too strongly on what the front tires are doing. That can make the car feel unpredictable or less stable when you turn in or slow down for a corner.

Term

Entry and stability

"You can't win supercar races with no regret. Like that's just how it is. Entry and stability, you know, all these things."

“Entry” is how the car feels when you first turn into a corner. “Stability” is whether it stays predictable and planted instead of sliding around or changing behavior unexpectedly.

Term

front grip

"But that is a track where if you've got a bit of front, you can get away with it, you know, brake hard, you know, the front grip does help you there."

Front grip means how much traction the front tires have on the road. If the front tires grip well, the car can turn in and stay controllable even when you brake hard. They’re saying this track rewards that kind of front-end traction.

Term

downforce

"I think we've lost a little bit of downforce total, apparently. That's where you move it."

Downforce is the “suction” effect from the car’s shape that presses it onto the track as you go faster. More downforce usually means better tire grip and more stable handling. Less downforce can make the car feel looser, especially at speed.

Term

braking stability

"And that helps. And we feel that. We think our braking stability is a bit better."

Braking stability is how steady the car feels when you hit the brakes hard. A stable car won’t suddenly feel like it’s sliding, spinning, or getting “wobbly” under braking. They’re saying their changes made the car behave better when slowing down.

Term

open tyre era

"On Bridgestone tyres in the open tyre era. Reasonably handy tyres."

It means the rules about tires were more flexible than usual. Teams could often choose different tires, so tire grip and how you manage them during the race mattered a lot.

Brand

Bridgestone

"On Bridgestone tyres in the open tyre era. Reasonably handy tyres."

Bridgestone is a well-known tire brand. In racing, the exact tire model can change how much grip the car has and how long the tires last.

Term

progressive grid

"But it was 20 minute sprint races and it was progressive grid. You started the next one where you finished the previous one."

“Progressive grid” is a race format where your result in one race affects where you start in the next. So if you do well earlier, you get a better starting position later.

Place

Oran Park

"Well, Scaife was a guru at Oran Park. He won a lot there."

Oran Park was a famous race track in Australia. Saying someone was a “guru” there means they were especially good at driving that track.

Brand

Castrol

"we featured a great old Castrol ad from the Files, Colin Bond and the Holden dealer team, Tarana."

Castrol is a company that makes car oils and other lubricants. Here, it’s the brand behind the old commercial they’re showing behind-the-scenes.

Car

Holden Tarana GTRX-U1

"This film was specially prepared to enable you to see what went into the making of a Castrol commercial featuring the Holden Tarana GTRX-U1 and to show how Castrol support GMH and their dealers."

This is a particular Holden performance car variant from Australia. In the episode, it’s mentioned because a Castrol ad used this car as the featured vehicle.

Company

GMH

"This film was specially prepared to enable you to see what went into the making of a Castrol commercial featuring the Holden Tarana GTRX-U1 and to show how Castrol support GMH and their dealers."

GMH is short for General Motors Holden, a big car company in Australia. The hosts mention it to explain who the commercial was supporting through dealers.

Place

Amaru Park

"Filming was carried out at Amaru Park by Amalgamated Pictures Australasia,"

Amaru Park is where they filmed part of the old commercial. It’s mentioned so you know the production happened at a specific real location.

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