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Feuling #452

Feuling #452

The Fast Life Podcast Feb 04, 2026 108 min
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About this episode

Luke Leatherman shares the fascinating journey of Feuling, detailing its origins and evolution in the performance parts industry. The conversation dives into the company's innovative approach to engine technology, particularly focusing on exhaust systems and their impact on overall performance. With insights into the balance of engine components and the importance of a complete package for motorcycle enthusiasts, this episode highlights the blend of passion and engineering that drives the aftermarket scene. Luke's personal anecdotes and experiences add a relatable touch to the technical discussions.

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Technical Too Afraid to Ask
Term

automotive aftermarket

"But I got a degree in automotive aftermarket, which kind of an interesting degree. But what does that entail, like a degree of that?"

The automotive aftermarket is all about the parts and services you can buy for your car after you purchase it. This includes things like replacement parts, upgrades, and accessories that aren't made by the original car manufacturer.

Company

Jim Fueling

"I ended up going out to Ventura because that's where Jim Fueling was based at that time. And I mean, I think we're talking 27, 28 years ago now."

Jim Fueling is a person who started a business related to cars and motorcycles, especially focusing on parts that make them perform better. His company has been around since the early 1970s.

Concept

exhaust systems

"the business really started around exhaust"

Exhaust systems are parts of cars that help get rid of the gases produced by the engine. They can affect how the car sounds and how clean it is for the environment.

Term

SEMA

"And you taking that class, you go to SEMA and that's how you said the introduction was made, essentially."

SEMA is a big car show where companies show off parts and accessories for cars. It's a place where people in the car industry meet and learn about new products.

Term

big block

"They had a booth set up at SEMA where they were displaying big block Chevrolet and Ford cylinder heads."

A big block is a type of car engine that is larger and can produce more power. It's often used in fast cars and trucks to give them better performance.

Brand

Ford

"...big block Chevrolet and Ford cylinder heads."

Ford is another well-known car brand in the U.S. that makes a variety of vehicles, including popular trucks and cars.

Brand

Chevrolet

"...big block Chevrolet and Ford cylinder heads."

Chevrolet is a popular car brand in the United States that makes many different types of vehicles, including trucks and cars.

Term

454

"It was a bolt on, 100 horsepower and 100 foot pounds of torque with pump gas onto say a 454. And like the late 90s, those things were all turds because of the emissions stuff on them."

The 454 is a big V8 engine made by Chevrolet that is famous for being very powerful. It's often found in trucks and some sports cars from the past.

Part

cylinder head

"...the technology that he created with the exhaust system and what it did to the performance of the engine then led to cylinder head development..."

The cylinder head is the part of the engine that covers the cylinders. It helps control the air and fuel that go into the engine and the exhaust that comes out.

Concept

engine development

"...which then more or less led to complete engine development. Yeah, but those all kind of go hand in hand, right?"

Engine development is about making engines better and more powerful. It includes improving different parts of the engine to help it run smoother and last longer.

Part

exhaust port

"...if you're building a head, then you have intake and the exhaust port. So you want to make sure that all these things are running flowing right."

The exhaust port is where the gases from the engine leave after the fuel has burned. It needs to work well so that the engine can get rid of waste gases quickly.

Part

intake port

"...if you're building a head, then you have intake and the exhaust port. So you want to make sure that all these things are running flowing right."

The intake port is the part of the engine that lets air and fuel in. It needs to be designed well so that the engine can get enough air to run properly.

Term

intake system

"best exhaust and the best intake for it, correct? 100%. And when you really look at it..."

The intake system helps bring air into the engine so it can mix with fuel and create power. A good intake system can make the engine run better.

Term

valve springs

"You need the camshaft, you need the valve springs..."

Valve springs help close the engine's valves after they open. They make sure the valves seal correctly so the engine can work well.

Term

camshaft

"You need the camshaft, you need the valve springs..."

The camshaft is a part that helps open and close the engine's valves at the right times. This is important for how well the engine runs.

Term

pushrod engine

"If it's a, you know, pushrod engine, you want to make sure that, you know, the pushrods..."

A pushrod engine is a kind of engine where rods are used to open and close the valves. This setup is often found in V8 engines.

Part

pushrods

"That's one thing that we see a lot in this industry where we've got poor pushrods that are flexing. We don't have valve springs that are set up necessarily properly."

Pushrods are parts that help move the valves in the engine up and down, allowing air and fuel to enter and exhaust to exit.

Company

General Motors

"Well, generally, General Motors kind of, you know, put his name on the map. He developed and I know there are some of you guys out there that are familiar with..."

General Motors, often called GM, is a big car company that makes many different types of vehicles, including trucks and cars.

Term

Aerotech program

"...and I know there are some of you guys out there that are familiar with like the Quad 4 and the Aerotech program, but you know, I even think to this date..."

The Aerotech program was a project by General Motors to create better car technologies, especially to make cars faster and more efficient by focusing on how air flows around them.

Term

Quad 4

"...he developed and I know there are some of you guys out there that are familiar with like the Quad 4 and the Aerotech program, but you know, I even think to this date..."

The Quad 4 is a type of engine made by General Motors that has four cylinders. It was designed to be powerful and efficient, and it was used in many GM cars in the past.

Term

horsepower per cubic inch

"...but you know, I even think to this date, I think he holds the most horsepower per cubic inch at just over 10 horsepower per cubic inch. And then that led into some more programs."

Horsepower per cubic inch tells you how much power an engine makes for every cubic inch of its size. A higher number means the engine is more powerful for its size.

Brand

Harley-Davidson

"And when I got involved, he had Harley-Davidson and Ford Motor Company in the building where..."

Harley-Davidson is a famous company that makes motorcycles, especially known for their big, powerful bikes.

Term

V-Twin

"But when does it like start to kind of roll into like the V-Twin stuff?"

A V-Twin engine has two cylinders that are shaped like a 'V'. It's commonly used in motorcycles and is known for its strong performance and distinctive sound.

Term

four valve heads

"the V-Twin stuff really, you know, kind of goes back to the four valve heads for the evolution engines."

Four valve heads have four openings for air and fuel to enter and exhaust gases to exit each cylinder. This helps the engine run better and produce more power.

Term

Milwaukee 8

"And really what we found with the Milwaukee 8 and the oiling system issues, for one, and something that feeling was instrumental in with the Twin Cam engine..."

The Milwaukee 8 is a type of engine made by Harley-Davidson that offers better performance and reliability compared to older models.

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