#149 - Ronny Dahl's wave rating, Duggo's Yo-Yo skills & Ultimate 4WD
The 4WD Podcast
#149 - Ronny Dahl's wave rating, Duggo's Yo-Yo skills & Ultimate 4WD The 4WD Podcast · Jun 11, 2026
#149 - Ronny Dahl's wave rating, Duggo's Yo-Yo skills & Ultimate 4WD

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#149 - Ronny Dahl's wave rating, Duggo's Yo-Yo skills & Ultimate 4WD
Term

pedal to the metal

It means the driver is pressing the gas pedal all the way down. In racing, that usually means they’re trying to go as fast as possible.

Term

pinned

“Pinned” means the driver is keeping the gas pedal basically fully down. It’s a way of saying they’re going flat-out.

Term

throttle down

It means easing off the gas. Drivers do it to slow down or to keep the car stable.

Term

throttle back

It means backing off the gas. Riders use it to slow down and stay in control.

Chevrolet Silverado
Car

Chevrolet Silverado

A Silverado ZR2 is a tougher, off-road version of the Chevrolet Silverado pickup truck. Here they’re saying it won a competition category, which is a big deal because it’s a big truck that can still move fast on the track.

F-150 Raptor
Car

F-150 Raptor

The Ford F-150 is a large pickup truck designed to carry loads and tow things. In the podcast, it’s being compared to other tough vehicles, so they’re likely talking about how well it performs for its type. It’s a popular choice because it can be set up for different uses, including driving off-road depending on the version.

Ford Ranger Raptor
Car

Ford Ranger Raptor

The Ford Ranger Raptor is a special off-road version of the Ranger pickup. In this discussion, it’s one of the trucks the Silverado ZR2 had to beat in the same category.

Nissan Navarro D22 classic
Car

Nissan Navarro D22 classic

This is a Nissan pickup truck called the Navara, specifically the D22 generation. People like it for 4WD because it’s built tough and is popular for off-road modifications.

Term

IFS

IFS means the front wheels are connected to the suspension in a way that lets each wheel move more independently. The point here is that bigger tires can cause fitment or handling issues with this suspension design.

Term

31s

“31s” means tires that are about 31 inches tall. Off-roaders use this shorthand because tire size affects how the vehicle fits, rides, and clears obstacles.

Term

braking CV

A CV (constant-velocity) joint is part of the drivetrain that lets power transfer smoothly while the suspension moves and the axle angles change. “Braking CV” suggests the CV joint was involved during braking under load, which can be a sign of wear or stress in off-road conditions.

Term

1FZ80

“1FZ80” is a shorthand for a Toyota Land Cruiser 80-series with the 1FZ engine. The host is basically saying the car’s limits showed up during the trip.

Part

straight-thopped front diff locker

A diff locker helps both wheels on the same axle pull at the same time. That’s useful when one wheel is slipping in mud, sand, or rocks.

Term

dual batteries

Dual batteries means there’s a second battery for accessories like camping electronics. It helps you run stuff without risking the main battery.

Term

Catch can

A catch can is a small container that traps oily vapors from the engine before they get into the intake. It helps keep the engine plumbing cleaner.

Brand

red arc

Redarc makes battery-charging gear for cars. Here it’s being used to manage charging for the extra (camping) battery.

Term

Safari Snorkel

A snorkel moves the air intake higher up. That helps the engine keep breathing when you’re driving through dust or shallow water.

Part

aluminium bull bar

A bull bar is a front protection bar that shields the vehicle’s grille and radiator area from impacts with animals, branches, and debris. An “aluminium” bull bar is typically chosen to reduce weight compared with steel while still providing protection.

Part

Winch

A winch is a powered puller with a cable. It can pull your 4WD out if you get stuck.

Term

recovery points

Recovery points are strong anchor spots on the car for towing or winching. They’re where you safely attach straps or shackles.

Term

UHF

UHF is a type of two-way radio. Off-road groups use it to talk to each other when cell service isn’t available.

Part

ARB rear bar

An ARB rear bar is a stronger bumper for a 4WD. It helps protect the back of the vehicle when you’re driving on rough tracks and can be used with recovery gear.

Part

tie rods and drag link

Tie rods and the drag link are steering parts that connect the steering to the front wheels. If the suspension is changed, they may need upgrading so the wheels still point the right way.

Part

tough dog steering damper

A steering damper (here, a Tough Dog unit) reduces steering oscillation—wobble—over rough terrain. It helps keep the front wheels settled after bumps, improving control and driver confidence on corrugations and trails.

Term

2-inch Pedder's lift with torsion bars

A 2-inch lift raises the truck so it can clear rocks and ruts better. With torsion bars, the suspension height is changed by adjusting how the bars are loaded.

Part

Dolbenson's constant load

“Constant load” here means the setup is meant to keep the vehicle’s ride more consistent even when it’s carrying weight. Dolbenson’s refers to the brand or kit used for that load/ride behavior.

Term

longer range fuel tank

A longer-range fuel tank holds more fuel. That means you can drive farther before you need to stop for petrol, which is useful on remote trips.

Term

31 inch tyres

That means the tires are about 31 inches tall. Bigger tires can help a 4WD get over bumps and dig in better off-road, but the exact shape depends on the tire width and how it’s mounted.

Term

aftermarket bonnet

An aftermarket bonnet/hood is a non-factory replacement hood. Here it’s mentioned because the hosts are talking about vehicle parts and how different setups fit together.

Term

clamshell ones

Some roof tents open like a clamshell—two hinged parts that flip up. The point here is that this style is usually faster and simpler to set up than other designs.

Term

roof top tent

A roof top tent is a tent that sits on the roof of the car. Instead of pitching it on the ground, you open it up from the roof when you arrive to camp.

Concept

ultimate four-wheel drive back with the bang

They’re talking about the “best” kind of 4WD setup for real trips—something that can handle dirt roads and camping. It sounds like they mean a fun, capable build, not just a stock vehicle.

single cab patrol
Car

single cab patrol

The Patrol is a big Nissan 4WD that’s known for handling rough roads. “Single cab” just means a simpler, ute-style setup with less passenger space.

Term

roll cage

A roll cage is a strong metal frame inside the car. It helps keep you safer if the vehicle tips over or crashes hard, because it adds protection around the cabin.

Term

all-time four-wheel drive

All-time four-wheel drive means the truck is sending power to all four wheels all the time. That can help with grip on dirt, sand, or wet roads because you’re not waiting for 4WD to engage.

Toyota A90
Car

Toyota A90

The Toyota Supra is a sports car, meaning it’s built more for speed and driving feel than for off-roading. In the podcast context, it sounds like they’re talking about how it looks or how it feels in motion. It’s a different type of vehicle than trucks or 4x4s.

Concept

waving ones

It sounds like there’s a friendly 4x4 driver “wave” thing in the community. The sticker is basically a way to show you’re part of that group.

Land Cruiser
Car

Land Cruiser

The Toyota Land Cruiser is a tough 4-wheel-drive vehicle made to handle rough roads and long trips. Here, they’re talking about the “79,” which is a very rugged version of the Land Cruiser.

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