TMCP #654: Chris Smith – Smitty Built Custom Auto – If You Want To Go Fast, Smitty Can Build It!
The MuscleCar Place
TMCP #654: Chris Smith – Smitty Built Custom Auto – If You Want To Go Fast, Smitty Can Build It! The MuscleCar Place · Jul 17, 2026
TMCP #654: Chris Smith – Smitty Built Custom Auto – If You Want To Go Fast, Smitty Can Build It!

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TMCP #654: Chris Smith – Smitty Built Custom Auto – If You Want To Go Fast, Smitty Can Build It!
Concept

suspension companies

Suspension companies test their parts by driving them hard and seeing how they hold up. The goal is to make sure the car stays controlled and doesn’t break when you push it.

Term

ABS

ABS is a safety system that helps your brakes not lock up. That means you can still steer while braking hard, which helps you stay in control when you’re driving fast.

Term

auto cross

Autocross is a timed driving event on a closed course marked with cones. It’s a good way to see how well your car handles and brakes when you’re turning a lot.

Term

road course

A road course is a racetrack with longer, faster corners than a cone course. It tests how steady your car feels when you brake and turn repeatedly at speed.

Ford Edge
Car

Ford Edge

The Ford Edge is a crossover SUV, which is a family-friendly vehicle that’s meant for normal daily driving. It’s built to be practical and comfortable, not just for racing. In the podcast, it’s brought up as part of a discussion about being on the leading edge.

Term

DCT

DCT means a dual-clutch transmission. It’s a special kind of automatic gearbox that can shift very quickly because it’s readying the next gear ahead of time.

Term

bolt on stuff

“Bolt-on” means parts you can install without doing major surgery on the car. You usually just bolt them on, and sometimes they help performance, but not always as much as people expect.

Term

UMI

UMI is a company that makes aftermarket parts for classic cars, often for suspension and handling. It’s the kind of upgrade that can help the car feel more controlled.

Term

Hotchkiss

Hotchkiss makes aftermarket suspension parts. Upgrading suspension can make the car handle better and feel more stable when you drive hard.

Term

Art Morrison

Art Morrison is known for building high-end chassis and suspension parts. If it’s in the cost list, it usually means the project isn’t just small bolt-ons—it may involve serious upgrades.

Term

Brembo

Brembo makes high-performance brake parts. Better brakes can help you stop harder and more consistently, especially when driving on a track.

Term

Barrett Jackson

Barrett-Jackson is a famous car auction where collectors buy and sell high-value vehicles. The host is talking about whether certain upgrades make a car worth more there.

Term

tuning the transmission

Tuning the transmission means adjusting how the car changes gears. The goal is usually to make shifting feel better and respond the way you want when you accelerate or slow down.

Term

EFI

EFI means the engine uses electronics to control fuel delivery. Instead of a carburetor, a computer and sensors decide how much gas the engine needs, which usually makes the car run smoother and respond better.

Term

transmission control valve

Transmission control is the electronics that tell an automatic transmission when to shift and how smoothly (or firmly) to do it. It helps the car drive correctly instead of shifting randomly.

Term

GM4L60E

GM 4L60E is a four-speed automatic transmission used in many GM vehicles, with the “E” indicating electronic control of shifting. It’s commonly swapped into custom builds because it’s widely supported with parts and tuning options.

Dodge Charger
Car

Dodge Charger

A “68 and 69 Charger” means the 1968 and 1969 Dodge Charger. The host is talking about new replacement body parts being sold so people can build or restore these cars without hunting for old sheet metal.

Company

US car tool

US Car Tool is the company the host credits with selling brand-new Charger body parts made to order. Instead of relying on old junkyard sheet metal, you can buy fresh panels.

Term

new sheet metal

“New sheet metal” means brand-new body panels made for the car. That’s helpful because old metal can be rusty or hard to fit correctly.

Company

Auto-metal direct

Auto Metal Direct is a parts supplier the host mentions for new body metal. Think of it like a store for fresh restoration panels instead of used or rusty originals.

Company

AMD

AMD is another company mentioned in the comparison. The host is basically asking why AMD didn’t sell the same kind of brand-new Charger body panels.

Term

licensing

Licensing means getting legal permission to copy or reproduce a specific car design. The host is saying that the legal process can be expensive and complicated.

Term

body and white

“Body and white” is the car body after it’s assembled and aligned, but before it’s painted. It’s basically the “ready for paint” stage.

Term

unibody

A unibody means the car’s body and frame are built as one piece. It usually makes the car lighter and helps it feel more solid when driving.

Term

jig assembled

A jig is a precision fixture used to hold parts in the correct position while they’re assembled. In bodywork, jig assembly helps ensure consistent alignment so the panels line up correctly and the build can be repeated accurately.

Term

body gapped

“Body gapped” means the body panels are spaced evenly—like the small gaps around doors and fenders. Good gaps usually mean the car was assembled carefully.

Term

chassis stiffening kits

A chassis stiffening kit adds extra braces to make the car’s structure feel less “wobbly.” That can help the car handle better, especially if you’re upgrading suspension or power.

Term

aftermarket suspension

Aftermarket suspension means replacing the factory suspension parts with upgraded ones from other companies. People do it to improve handling or change how the car sits and rides.

Brand

QA1

QA1 is a company that makes performance suspension parts. Here it’s mentioned as one option for upgrading the car’s handling.

Term

semi-decent roller

A “roller” is basically a car body/chassis that doesn’t have the engine and transmission installed. Buying one can be cheaper, but you still have to do a lot of work to get it ready to paint and finish.

Term

lead additive

Some older engines were designed around fuel that included lead. A lead additive is basically lead added back into the fuel so those older engines can run the way they were meant to.

Term

leaded gas

Leaded gas is regular gasoline that has lead mixed into it. Some older engines need it (or tolerate it better) because they were designed before lead was removed from fuel.

Term

turbine engine

A turbine engine is an engine that works by spinning hot gas through it, instead of using pistons. It can use fuels like kerosene that many piston engines can’t.

Term

turbo prop

A turbo prop is basically a turbine engine that turns a propeller. It’s common in many airplanes because it can be powerful while still using a propeller for thrust.

Brand

AOPA news

AOPA News is aviation news from a pilot-focused organization. The host is saying they saw this development reported there.

Place

Oshkosh

Oshkosh is where a big aviation airshow happens. It’s a place pilots and companies go to show off new aircraft and engine tech.

Brand

turbo tech

Turbo Tech is the company behind the new engine design being discussed. The idea is that their turbine setup uses less fuel than older turbine engines.

Term

heat exchanger

A heat exchanger is a component that moves heat from one part of the system to another. Here, it captures heat from the engine’s exhaust and uses it to help the engine burn fuel more efficiently.

Term

light sport aircraft

Light sport aircraft are smaller, simpler airplanes that fall under a specific aviation category. The host is saying this new engine tech could be especially relevant for that kind of aircraft.

Volkswagen Crafter
Car

Volkswagen Crafter

The Volkswagen Crafter is a van made for work, like carrying cargo or tools. It’s not a passenger sports car—it’s built for practical use. In the podcast, it’s mentioned while talking about vehicles and parts the shop deals with.

Term

checkered flag

The checkered flag is the signal that the race is over. In some situations, like when there’s a late wreck, the way the finish is handled can change how drivers get credited with their positions.

Term

yellow checker

A “yellow checker” is a special kind of finish signal used when there’s a major incident late in the race. Instead of counting laps after the wreck, officials score the race based on the last lap that was completed safely.

Term

start finish line

The start/finish line is the official line on the track that counts laps. If there’s a big crash and the race gets reset, that line helps determine the official order and restart setup.

Term

no mercy rule

The “no mercy rule” means if you cause a wreck, officials will penalize you by moving you to the back of the pack. It’s meant to discourage reckless driving.

Term

qualifying

Qualifying is how drivers earn their starting positions. If you don’t qualify well, you start farther back, which can make it harder to run up front in the race.

Term

pole

The pole is the best starting spot—right at the front of the grid. If you qualify well, you start first, which usually helps you avoid early traffic and chaos.

Term

points

“Points” are the championship scoring totals accumulated across races. A driver can be doing well overall (top 10 in points) even without wins yet, because consistent finishes still earn points.

Brand

NASCAR Cup

NASCAR Cup is NASCAR’s main top-level racing series. When people talk about “Cup wins” or “Cup starts,” they mean results from that top series.

Person

Denny Hamlin

Denny Hamlin is a long-time NASCAR Cup Series driver known for frequent top finishes and a large career win total. In this segment, the host uses his career stats as a reference point for how many starts and wins are considered “a lot” in NASCAR Cup.

56 Chevy wagon
Car

56 Chevy wagon

This is a 1956 Chevy wagon, a classic car people often modify. The episode says it was surprisingly fast for its time, which is part of the reason Chris grew up wanting to work on cars.

Term

small block

“Small block” means a smaller V8 engine design that’s popular for hot-rodding. The speaker is saying that engine helped the wagon run very quick times.

Brand

Kelly springfield tires

Kelly-Springfield is a tire brand. Tires are a big part of how fast a car can accelerate and grip the road, so it’s relevant to the story about that wagon’s speed.

1967 gmc pickup truck
Car

1967 gmc pickup truck

This is a classic GMC pickup from the late 1960s. It’s the kind of truck people often modify because parts are widely available, and Chris mentions it as what he drove while learning to work on cars.

81 malibu square body malibu
Car

81 malibu square body malibu

This is a Chevrolet Malibu from 1981. The “square body” wording is a common car-person way to describe that older, boxier GM look, and Chris says it was part of what he drove while learning car work.

Rolls-Royce Phantom
Car

Rolls-Royce Phantom

The Rolls-Royce Phantom is a very expensive luxury car designed to feel smooth and comfortable. It’s meant for high-end driving rather than sporty performance. The podcast mentions it because it was present in the shop along with other cars.

69 camaro
Car

69 camaro

This is a 1969 Chevrolet Camaro, a classic muscle car. The host is saying they restored/customized one for a customer, and it was finished in a specific green color called “Phantom Green.”

Topic

street challenge

A “street challenge” is basically a test where cars are pushed in a more real-driving way, not just judged as show cars. In this story, it’s part of the reason the shop started building more race-capable cars.

Term

air suspension

Air suspension is a suspension system that uses air bags to change how high or low the car sits. The host is saying people doubted it could handle hard driving on a street-challenge kind of course.

Term

air ride

“Air ride” means the suspension uses air pressure instead of regular springs. It can raise or lower the truck so it sits differently, but it may not handle rough driving as well unless it’s tuned.

Car

black 67 gmc truck

They’re talking about a 1967 GMC truck they had. Even though it wasn’t built for racing, they’re saying it could still handle pretty well with the right suspension parts.

Term

18s and 20s

They’re talking about wheel sizes—18-inch and 20-inch rims. Bigger wheels usually mean shorter tire sidewalls, which can change ride comfort and handling.

Term

sway bars

A sway bar is a bar that helps keep the vehicle from leaning too much in turns. It can make the truck feel more stable when you drive it hard.

Term

burnouts

A burnout is when you spin the tires to heat them up. People do it to get better grip, and it’s also a crowd-pleasing show move.

Part

control arms

Control arms are parts in the suspension that hold the wheel in the right position. Changing them can help the car handle better and feel more predictable.

Part

torque arm

Torque arms are suspension parts that help control how the rear end moves. They can improve traction and make the car feel more consistent when you accelerate or brake hard.

Term

traction control

Traction control helps stop your tires from spinning when you’re trying to accelerate on slippery or low-grip surfaces. It can reduce engine power and sometimes brake one wheel to keep the car moving straight.

Concept

streetcar pro touring world

“Pro touring” is a style of build where you make a car handle really well, like a track car, but you can still drive it normally. The goal is a car that’s fun and confident on both the street and at events.

Term

LS engine

An “LS engine” is a popular GM V8 used in a lot of hot rods and swaps. People like it because there are lots of parts available and it’s known for making strong power.

Term

yaw

Yaw is how much the car’s front swings left or right. In cornering, managing yaw helps the car stay pointed the way you want instead of getting loose.

Term

OEM stuff

OEM parts are the original parts that came with the car from the factory. People often upgrade from OEM to aftermarket when they want more performance or better handling.

Term

Bosch Motorsport

Bosch Motorsport is Bosch’s racing-related side of the business. The host is using it as an example of a well-known performance brand in racing tech.

Term

aggressive brake pad

An aggressive brake pad is designed to generate strong friction for performance braking, but it can also be harder to modulate and may behave poorly with ABS if it tends to stay stuck to the rotor. The host is warning that “more bite” isn’t always better if it interferes with ABS operation.

Brand

Willwood

Willwood makes aftermarket brake parts. The point here is that the host trusts their brake kits to work well without spending “race-only” money.

Brand

StopTech

StopTech is a company that makes performance brake parts. The host is basically saying “no, you don’t have to buy from a specific brand like this.”

Term

14 inch kit

A “14-inch kit” means the brake setup is designed to fit a 14-inch wheel/rotor configuration. Bigger brake setups can help the brakes stay consistent when you drive harder.

Term

six piston front

“Six piston” describes how many pistons squeeze the brake pads against the rotor. More pistons can help the pads clamp evenly, which can make braking feel stronger and more consistent.

Term

full floating rotors

A full floating rotor is built so part of the rotor can move a little as it heats up. That helps the rotor handle heat better and can make braking smoother over time.

Term

IRS cars

IRS means the rear wheels move independently instead of being tied together. The host is saying that with IRS, you often want the rear brakes set up to work harder so the car stays planted when you slow down.

Term

rear brakes

“Rear brake” is about how much of the stopping power comes from the back wheels. Changing that can affect how the car behaves when you brake hard.

Topic

building suspension in stages vs buying twice

The host emphasizes planning a suspension build order so customers don’t have to replace parts later. This is a practical strategy for controlling cost and avoiding duplicated labor when upgrading for autocross/road-course use.

Term

pro touring car

A pro touring car is a muscle car build meant to drive and handle really well, not just be fast in a straight line. It’s usually set up for better cornering and braking while still being usable on the street.

Brand

Detroit Speed

Detroit Speed is a company that makes aftermarket suspension and handling parts for classic cars. Here they’re mentioned as a suspension/chassis option depending on wheel and fitment goals.

Brand

Speed Tech

Speed Tech makes aftermarket parts to improve how a car handles. In this conversation, it’s suggested when you want bigger wheels and sharper turning without changing the body with wide fenders.

Term

wide fenders

Wide fenders are body modifications that allow wider wheels and tires to fit without rubbing. In suspension planning, they affect how aggressively you can run tire width for grip and how much steering lock you can achieve without interference.

Brand

RideTech

RideTech is a company that sells suspension and chassis upgrade parts. The point here is that a more complete chassis-style setup tends to hold value better than only doing some bolt-on parts.

Term

subframe

A subframe is like a strong inner frame that the suspension attaches to. If you change it, you can make the car handle better because the suspension has a better foundation.

64 Chevelle
Car

64 Chevelle

A 1964 Chevrolet Chevelle is a classic muscle car people often modify for faster driving. Here, the speaker is talking about a Chevelle build that used a custom chassis setup so it could accept modern aftermarket parts.

Term

boxed and narrowed

This means the frame was modified to be stronger and fit better. Boxing makes it stiffer, and narrowing helps the suspension and wheels line up the way the builder wants.

Term

full chassis

A “full chassis” is basically the whole undercarriage system—frame and key suspension mounting parts—built or replaced as a package. The speaker is comparing different complete chassis options and what they cost.

Term

front cross member

A front cross member is a strong bar that ties the two sides of the front frame together. It helps the front suspension mount correctly and can make the car/truck feel more stable.

Brand

no limit rob

The speaker is naming a particular aftermarket builder/supplier (“No Limit Rob”) whose chassis parts they’ve used. They’re saying it worked really well on their truck.

Term

irs chassis

IRS means the rear wheels don’t move as one solid unit. That usually makes the ride smoother and helps the truck handle better because each wheel can react to bumps and grip changes.

Term

forward bite

“Forward bite” means how well the tires grab when you accelerate. More forward bite usually helps you get up to speed faster and stay in control through corners.

Term

four link

A four-link is a type of rear suspension that uses multiple arms to control where the rear axle goes. Performance builders like it because it can be adjusted to help the car grip and handle better.

Ford Mustang
Car

Ford Mustang

“Mustang II” is a specific older Ford Mustang generation. When people build custom cars around that platform, the front suspension parts—especially the control arms—need to be strong and properly made.

Term

suspension geometry

Suspension geometry is how the suspension is set up—basically the angles that control how the tires sit on the road. Changing it can make the car handle better or worse.

Term

ball joints

Ball joints are pivot parts that let the suspension move while keeping the wheel connected. If you’re changing alignment or suspension geometry, ball joints often have to be moved or reworked too.

Term

caster

Caster is an alignment angle related to how the steering axis is tilted. It helps the car track straight and can change how the steering feels.

Term

center of gravity

Center of gravity is the “balance point” of the car’s weight. If it’s higher or shifted, the car will lean and handle differently.

Lucid Gravity
Car

Lucid Gravity

The Lucid Gravity is an electric SUV, meaning it runs on electricity instead of gasoline. How the weight sits in the car—like the center of gravity—can change how it turns and feels when driving. The podcast brings it up to explain that handling differences aren’t just about power.

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