0:00 / 0:00
Chris Patterson on 3000 Horsepower Diesels, Building Race Trucks and Ultimate Callout Challenge

Chris Patterson on 3000 Horsepower Diesels, Building Race Trucks and Ultimate Callout Challenge

Minnoxide Apr 15, 2026 117 min
0:00
0:00

About this episode

Chris Patterson—aka “Mr. 3000”—breaks down how diesel trucks are pushed into the 3,000+ horsepower world and why dyno numbers are both the holy grail and the most controversial. He explains the Superflow 849 dyno used for the Ultimate Call Out Challenge triathlon (drag, dyno, sled pull, plus more), recounts his first 3,089 hp chassis-dyno run, and details the brutal logistics of drag-and-drive events (multiple transmissions, solid-block cooling tricks, and full-manual driving). Patterson also covers build philosophy, safety rules, nitrous solenoid setups, and what it really costs to chase time slips versus “show” builds.

Filter:
|
Technical Too Afraid to Ask
Company

6XD Gearbox

"This episode is brought to you by 6XD Gearbox. More on them later."

This is a company that makes or supports gearbox (transmission) parts. They’re sponsoring the show, so they likely have something to do with the kind of drivetrain builds being discussed.

Term

3000 horsepower

"Well, typically you earn a nickname like that when you make 3000 horsepower, which I did."

That’s the power level the guest is known for—about 3,000 horsepower. Making that much power on a diesel usually takes serious modifications, not just a simple tune.

Concept

horsepower to the tire

"And we had 2500 horse to the tire that we knew it was going to do."

Horsepower to the tire means the power that actually reaches the wheels. It’s different from engine horsepower because some power is lost through the drivetrain.

Term

break the beams

"understands what it's like to break the beams on the very last day."

On a drag strip, there are sensors that time your run. When you “break the beams,” it means you passed through those sensors and your time gets recorded.

Term

Sancher shaft, 37 splines

"...electronic overdrive on the back and Sancher shaft, 37 splines, solid input shaft, fat output..."

Inside the transmission, there’s a shaft that connects to other parts using ridges (“splines”). Stronger spline setups help the transmission transfer power without stripping or failing.

Term

full manual valve bodies

"...fat output, Maldunes, full manual valve bodies, all the line pressure."

The valve body is like the transmission’s control center for shifting. A “full manual” setup lets the driver control shifts more directly, which can make performance more consistent in racing.

Company

Texas Motorplex

"...racing at Texas Motorplex in Ennis. It was about an hour from here."

Texas Motorplex is a drag racing track in Texas. The speaker’s point is that the event schedule and distance affect how they manage repairs and swaps.

Concept

full manual valve body

"I'm a full manual valve body. I shift it myself. I don't have an air shifter."

A “full manual valve body” means the transmission shifts only when you command it. Racers use it to make shifting more predictable when the truck is making huge power.

Part

connecting rod

"...you want 1000, you get a waggler street fighter connecting rod... And then after that, there's another choice, which is a waggler billet connecting rod... And it's the DNJ X beam connecting rod."

The connecting rod connects the piston to the crankshaft. When an engine makes a lot of power, the forces inside the cylinders get huge, so the rod has to be very strong.

Part

wrist pin bushing

"...It has a very nice wrist pin bushing in it. And then it has a diamond interlock cap..."

The wrist pin is the small pin that connects the piston to the rod. A bushing is like a low-friction sleeve that helps it move smoothly and last longer.

Term

blown head gasket

"If you come in with a blown head gasket on a 6x7 and you have aftermarket tuning on it"

A head gasket is a seal between the engine parts. If it fails, the engine can start mixing fluids or losing compression, and it can quickly get worse.

Term

head studs ARP 2000

"And then we offer head studs ARP 2000, ARP 625 custom-aged."

Head studs are stronger bolts that clamp the engine together. ARP 2000 is a specific strong material/grade meant to handle high power without the head lifting.

Term

boost test

"boost test, valves adjusted, like it's all done right to last another 150, 200,000 miles."

They test the turbo/boost system to make sure it’s working correctly. It helps confirm there are no leaks after the repair.

Term

compound turbos

"with compound turbos and a 14 millimeter stroker pump"

Compound turbos use more than one turbo to get better airflow. The goal is quicker boost and more power across the rev range.

Term

roll cage

"Do you want interior? Do you want a roll cage? Do you want four link?"

A roll cage is a metal safety frame inside the truck. It helps protect you if the vehicle flips or gets hit hard, and race rules often require one.

Term

time slips

"Or it could be a bad boy that you don't care what it looks like at all. You care about time slips, distance pulled, dino graphs, things like that."

A time slip is the paper (or digital record) that shows how fast you ran in a race. Race trucks are built to produce consistent, measurable results like that.

Term

dino graphs

"You care about time slips, distance pulled, dino graphs, things like that."

Dyno graphs are charts from a testing machine that measure power and torque. They help you see if your tune is actually making the numbers you’re paying for.

Part

U joint safety shields

"turbo chargers, different rules, different drive shot, drive shaft safety loops versus U joint safety shields,"

These shields protect the area around the driveshaft’s joint. If the joint breaks, the shield helps keep broken pieces from getting loose.

Term

drive shaft safety loop

"let's talk about a drive shaft safety loop. You're familiar in the gasoline world. What's that mean to you?"

This is a safety strap/loop around the driveshaft. If something breaks, the loop helps keep the broken parts from flying around inside the truck.

Part

chrome molly tubing

"Typically, it's a 360 degree loop that's at least an inch by let's say 120th hour, 83,000 chrome molly tubing."

Chromoly tubing is a strong type of metal used for safety parts. It’s chosen because it can handle big forces without failing.

Part

360 degree loop

"Typically, it's a 360 degree loop that's at least an inch by let's say 120th hour,"

A 360-degree loop wraps all the way around the driveshaft. If the shaft breaks, it gives protection from multiple directions.

Part

CNC ported

"...a $8,400 cylinder head that was brand new. Top of the line, CNC ported, big name builder..."

CNC porting means the engine’s airflow passages are precisely reshaped with a computer-controlled machine. The goal is to let air and exhaust move more easily for more power.

Concept

front wheel drive

"I put my stupid truck up there on first in front wheel drive and everybody's so scared... I spin it on tune one in front wheel drive on the dyno"

Front-wheel drive (FWD) sends power to the front wheels, which affects traction, torque steer, and how easily the drivetrain can handle extreme power. Building a high-horsepower FWD setup is especially challenging because the front driveline components and engine mounts see huge stress.

Part

valve spring

"a hundred pound valve spring stage one drop in a stock diameter valve like minimal port work."

Valve springs control the opening and closing of engine valves and help prevent valve float at high RPM. The speaker mentions a “hundred pound valve spring,” which suggests much stronger springs than stock to handle the increased stress from the high-power setup.

Concept

cylinder head

"It was like two days ago, we put the cylinder head on. We'd already been dirt drag racing"

The cylinder head is the top part of an engine that houses the combustion chambers and typically the valves and related passages. Replacing or installing a cylinder head is a major repair step and often happens after severe engine stress—especially in high-power diesel builds.

Term

human error

"The number one thing is the stupidest thing and that's human error. A mechanical part always has a limit."

In high-power racing, “human error” refers to mistakes by the driver, tuner, or crew—like incorrect settings, missed steps, or wrong parts. Even when the hardware is capable, errors can still cause failures.

Term

nitrous

"I went all weekend and did not turn on the nitrous. So I went all weekend on fuel only. We got, I don't remember all the numbers."

Nitrous is a system that adds extra “boost” to make more power. If it doesn’t turn on when you expect, you’re basically racing with less power than planned.

Part

turbochargers

"...four sets of injectors, probably 10 turbochargers. It's $100,000 a weekend..."

Turbochargers force more air into the engine, which enables higher fuel burn and more power. The speaker mentions bringing many turbochargers, implying they swap setups to match track/dyno conditions or to recover from failures.

Term

helmet

"When you open that door of that truck and you get out and no one, you just took a L, you can't throw those gloves or that helmet"

A helmet is protective gear that helps keep the driver safe. They’re mentioning it because the driver is getting out of the truck after a race and needs to stay composed.

Company

Yukon gear and axle

"And that's our transmission department. And then we have Yukon gear and axle. Yukon has sponsored me gears and shafts."

Yukon makes heavy-duty drivetrain parts like gears and axle components. For a fast diesel truck, those parts help the drivetrain survive the extra twisting force.

Term

dyno

"If the rules of the dyno change and the load is variable and it controls RPM rise, engines are going to explode like crazy... If your engine blew up on the dyno, your runs don't count."

A dyno is like a treadmill for a car. Instead of driving on the road, the engine runs while a machine measures power, and it can also apply resistance to simulate driving load.

Term

boost pressure

"...how fast the turbo can spool up at RPM... How long does it take the turbo to come up to full boost pressure..."

Boost pressure is how hard the turbo is pushing extra air into the engine. More boost can mean more power, but it also needs the right tuning to stay safe.

Concept

Two turbos

"Nitrous just helps all of it. Two turbos does it even better airflow as much as you can."

Running two turbos can help the engine make boost sooner and still flow enough air at higher RPM. The exact setup determines whether it feels more responsive or more powerful at the top.

Company

Cummins

"[6863.0s] spark plugs, forced inductions and iconic or a viper, right, or a viper with a Cummins motor."

Cummins makes diesel engines. They’re talking about the idea of putting a Cummins diesel engine into a car like a Viper.

Car

Audi

"Do you remember when Audi went to Le Mans with those diesel cars?"

Audi is a well-known car brand from Germany. They’ve also raced in major endurance events like Le Mans, and the speaker is bringing up their diesel racing history.

Request an Explanation

Heard something you'd like explained? We'll add it to this episode.

Sign in to request explanations for terms you heard.

Want to learn more?

Browse our glossary for plain-English explanations of automotive terms, jargon, and concepts.

Explore Terms

Help improve this episode

See something that's not quite right? Our annotations are AI-generated and can sometimes miss the mark. Click the flag icon on any annotation to suggest a correction.

Report incorrect info
Suggest better explanations
Flag missing cars