GHiT 0746: Mark Petronis is Back
Garage Heroes In Training
Garage Heroes In Training Jan 22, 2026
GHiT 0746:  Mark Petronis is Back

GHiT 0746: Mark Petronis is Back

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GHiT 0746:  Mark Petronis is Back
Term

carbon fiber

Carbon fiber is a special material that is very light and strong. It's used in race cars to make them lighter, which helps them go faster and handle better.

Chevrolet Corvette
Car

Chevrolet Corvette

The Corvette is a famous sports car made by Chevrolet. It's known for being fast and having a unique design, making it very popular among car enthusiasts.

Mazda Miata
Mazda MX-5 Miata
Car

Mazda MX-5 Miata

The Mazda MX-5 Miata is a small sports car that is fun to drive and easy to handle. It's known for being affordable and is loved by many car fans.

Chevrolet C8
Car

Chevrolet C8

The Chevrolet C8 is the latest version of the Corvette sports car, known for its new engine placement in the middle of the car, which improves handling and speed.

Part

radiator

A radiator is a part of the car that keeps the engine cool. It helps prevent the engine from getting too hot while you drive.

Part

oil cooler

An oil cooler is a part that keeps the oil in the engine from getting too hot. This helps the engine run better and last longer.

Part

differential cooler

A differential cooler helps keep a part of the car that helps the wheels turn from getting too hot. It's important for cars that do a lot of heavy work or fast driving.

Term

factory cooling

Factory cooling is the cooling system that is built into a car when it's made. It's meant to keep the engine from getting too hot while driving normally.

Term

dyno graph

A dyno graph shows how powerful an engine is at different speeds. It helps car enthusiasts see how well an engine performs.

Term

horsepower

Horsepower tells you how powerful an engine is. The more horsepower a car has, the faster it can go and the better it can accelerate.

Term

VIR

VIR is a racetrack in Virginia where cars can be driven fast in a controlled environment. It's a popular spot for racing and testing car performance.

Term

Watkins Glen

Watkins Glen is another famous racetrack in New York where cars race. It's known for being challenging and exciting for drivers.

Part

eccentrics

Eccentrics are parts of the car's suspension that help adjust how the wheels are positioned. This adjustment can improve how the car drives and how long the tires last.

Part

suspension

The suspension is the part of the car that helps keep the ride smooth by absorbing bumps in the road. It connects the car's body to the wheels.

Part

camber kit

A camber kit helps change the angle of the wheels so they can grip the road better when turning. This can make the car handle better during races or on tracks.

Term

grip

Grip is how well the tires stick to the road. More grip means the car can go faster around corners without sliding.

Term

3700 pounds

3700 pounds is how much the car weighs. The weight of a car affects how it drives and handles on the road or track.

Term

torque wrench

A torque wrench is a special tool that helps you tighten bolts to the right tightness. It's important because if bolts are too loose or too tight, it can cause problems.

Term

toe

Toe is how the wheels point compared to the center of the car. If the front of the wheels is closer together than the back, that's toe-in; if the back is closer, that's toe-out. This can change how the car drives and how quickly the tires wear out.

Honda Civic
Car

Honda Civic

The Honda Civic is a small car that many people use for everyday driving. It's known for being dependable and getting good gas mileage, which makes it a smart choice for a lot of drivers.

Term

spring rate

Spring rate is how stiff a spring is. If a spring is stiffer, it won't compress as much when weight is put on it, which can help the car handle better but might make the ride bumpier.

Term

shocks

Shocks are parts that help control how much the car bounces when you go over bumps. They work with the springs to make the ride smoother and more stable.

Buick Grand Sport
Car

Buick Grand Sport

The Buick Gran Sport is a classic car that was built for speed and performance. It's a larger car that many people admire for its powerful engine and sporty design.

Term

Limp Mode

Limp Mode is when your car's computer detects a problem and makes the car run slower to avoid damage. It helps you get to a mechanic without causing more issues.

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