UCC Comments Got Heated, Here's Why They're Wrong
Power Driven Podcast
UCC Comments Got Heated, Here's Why They're Wrong Power Driven Podcast · Jul 8, 2026
UCC Comments Got Heated, Here's Why They're Wrong

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72:52
UCC Comments Got Heated, Here's Why They're Wrong
Term

drag race

A drag race is a competition where two cars race in a straight line. The goal is to get to the finish line as fast as possible, usually over a short distance.

Term

rebuilds

A rebuild is when a worn drivetrain part gets taken apart and repaired or refreshed. Drag racers often rebuild based on how many hard runs the part can survive.

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48 are E

“48 are E” is the name of the specific transmission they’re talking about. They’re saying it’s used in their drag truck and asking how many hard runs it can handle before it needs work.

Term

test passes

Test passes are practice runs where the team tries the car again and again to see how it performs. They also use them to check whether parts are holding up.

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4,300 pounds

Weight matters in drag racing because a heavier vehicle usually accelerates slower. They’re comparing the weight of the record car to their truck to explain why the times are meaningful.

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horse going down the track

“Horse” means horsepower, which is how much power the car makes. When they say it “going down the track,” they mean how much power the car is effectively using during the drag run.

Term

back half

“Back half” means the second part of the drag run. They’re saying the car was pulling harder later, which usually helps overall results.

Term

trans

“Trans” means the transmission, which is what sends power from the engine to the wheels. In drag racing, it has to handle the extra stress when you add more power.

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engine

They’re talking about the engine’s ability to handle the extra strain. When you add power for drag racing, you worry about what breaks first—engine or transmission.

Term

tires

They mean the tires’ grip. If the tires spin instead of grabbing the track, you waste power and the run gets worse—so traction is often the real limit in drag racing.

Term

variant

They’re probably talking about a specific setup they tried for the car. Think of it like “the version we ran” when they changed power.

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R and D

“R and D” is research and development—basically experimenting and improving parts through testing. Here they’re saying they’ve done a lot of work to make the drivetrain setup better.

Term

snapped the 35 supply

This line is hard to decode from the snippet alone. It sounds like they changed or tested something related to how the car is supplied (like fuel or boost), but we’d need more context to be sure.

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35 spline

A “spline” is the toothed connection between two parts. “35 spline” means the input shaft has 35 teeth that lock into the transmission, and that connection has to handle a lot of twisting force.

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input shaft

The input shaft is the part inside the transmission that first receives power from the engine. If that part can’t handle the force, it can break and take the transmission out.

Term

3000 horsepower

“3000 horsepower” is used as a benchmark for how much power the drivetrain must handle. The host’s point is that holding that level is “not terribly hard,” while pushing beyond it becomes significantly more difficult due to higher torque and stress on components.

Person

Josh McCormick

Josh McCormick is the racer the hosts are talking about. They’re saying he’s doing serious drag/sled-pulling runs, where the transmission has to survive a lot of stress.

Term

clutch

A “clutch” is what helps the transmission grab and transfer power to the wheels. If it’s not set up right, it can slip under load.

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pressure

“Pressure” refers to the force the transmission uses to clamp the clutch packs. More pressure can help the transmission stay locked instead of slipping.

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dino numbers

“Dino numbers” means the results from a dyno test. They’re saying after big dyno runs, they had to take the transmission apart to find what was going wrong.

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slip

“Slip” means the transmission isn’t fully grabbing. Instead of power going straight through, parts of the drivetrain move at different speeds, which can hurt performance and reliability.

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output shaft speed

This is how fast the transmission’s “output” spins. It’s important because it tells you whether the gearbox is transferring engine power cleanly or if something is slipping.

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overdrive

Overdrive is a transmission gear that’s designed to make the car run more efficiently at speed. In this case, it means the output spins faster than the engine.

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tire deflection

Tire deflection is how much the tire squishes and flexes when it’s loaded. On a dyno, that can make the data look like slip even when the drivetrain is behaving normally.

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chassis dyno

A chassis dyno measures power with the car’s tires on rollers. The tires flex and absorb some energy, so it can read less than a setup that measures at the hub.

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aftermarket oil filter

It’s an oil filter made by a company other than the car’s manufacturer. It’s used to keep engine oil clean, but not all aftermarket filters are equally good.

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fleet card

A fleet card is a payment card used for company vehicles to buy fuel. Here it sounds like it’s being referenced as part of the story around the car, not a performance modification.

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four wheel drive

Four wheel drive means the car powers all four wheels. It can help the car grip better off the line, but you still have to manage how you apply power.

Term

60 foot game

On a drag strip, the “60-foot” number is how fast the car gets off the line in the first 60 feet. Getting that right usually means better launches and better overall times.

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starting line

The starting line is where the car launches on a drag strip. How you leave the line—how hard you apply power—can make or break your time.

Term

factory ECM

The ECM is the car’s main computer for the engine. “Factory ECM” means it’s the original computer from the manufacturer, not an aftermarket replacement.

Term

Haltech ECU

An ECU is the car’s computer that controls how the engine runs. Haltech makes aftermarket ECUs, meaning they’re added or swapped in to tune the engine—here, for a diesel.

Term

aftermarket ECU

An aftermarket ECU is a different engine computer than what came from the factory. People use them to tune the engine more precisely—especially after mods—so it runs the way they want.

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injectors

Fuel injectors spray fuel into the engine. The ECU decides when and how long to spray so the engine gets the right amount of fuel.

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timing

“Timing” is when the engine’s spark/combustion happens during the cycle. Getting it right helps the engine make power without knocking.

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RPM

RPM tells you how fast the engine is spinning. The ECU uses RPM to decide what the engine should do next.

Term

TPS

TPS is the sensor that measures how much you’ve pressed the gas pedal. The ECU uses that information to adjust the engine’s response.

Term

data logger

A data logger is a device that records what the car’s sensors are seeing. Tuners use it to review what happened during a pull or race run.

Brand

Bosch ECU

Bosch makes engine computers for cars. In this setup, the speaker says the Bosch ECU is running the diesel engine, while another controller handles the rest of the race functions.

Term

line locks

Line locks are a drag-racing brake feature that keeps the car from rolling while you rev. It uses the brake system to “lock” the car in place for staging.

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nitrous control

Nitrous control is how the car’s computer manages the nitrous system. It decides when nitrous can be used and helps keep it within safe operating conditions.

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lift pump

A lift pump is a fuel pump that feeds fuel forward so the engine always has supply. On diesel cars, it’s especially important for stable fuel pressure.

Term

lock up

Lock-up usually means the automatic transmission’s torque converter clutch engages. That reduces slippage and makes power delivery feel more direct, which can help the car run better.

Term

waste gates

Wastegates control turbo boost. They help the engine decide how much pressure the turbo makes by diverting some exhaust gas around the turbo.

Term

shift box

A shift box is an extra controller that helps manage when the car shifts gears. It’s often used in performance builds to make shifting more consistent and coordinated with other power adders.

Term

nitrous box

A nitrous box is a controller that manages the nitrous system—when it turns on and how it delivers the shot. It helps keep nitrous operation consistent and safer.

Term

air shift

An “air shift” uses compressed air to move the transmission into the next gear. Drag racers use it because it can shift quickly and consistently.

Term

air cylinder

An “air cylinder” is a device that uses compressed air to push or pull something. Here, it’s used to physically move the shifter quickly at the right times.

Term

Haltex

“Haltex” is the electronic controller that decides when the car should shift. It watches things like speed/time and then triggers the shifter at the right moment.

Term

12 valve

A “12 valve” engine has 12 valves in the engine head that control how air and fuel get in and exhaust gets out. It’s a specific engine design detail that can affect how the engine breathes.

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boost canister

A “boost canister” is like a small pressure tank. It stores pressurized air (boost) so the system can use it quickly when it needs to shift.

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check valve

A “check valve” is a one-way valve. It lets air/pressure go into the tank, but it stops the pressure from leaking back out.

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turbo system

A “turbo system” is the parts that use a turbocharger to make extra engine boost pressure. In this case, the boost is used to power the shifting mechanism.

Term

Mac valve

A “Mac valve” is a valve that controls where pressurized air goes. When it opens, it sends stored boost pressure to the shifter so it can change gears.

Term

electronic air solenoid

An “electronic air solenoid” is an electrically controlled valve for air. It can quickly open or close an air line so the shifting system gets the pressure it needs.

Term

drag strip

A drag strip is a track made for straight-line acceleration races. Cars do repeated runs so you can compare how fast they are and how well the setup works.

Term

silinoids

The solenoids are the electronic valves that control when nitrous actually gets released. If they’re triggered more times, more nitrous can be used during the test.

Term

water injection

Water injection is when a car sprays water into the engine to help it run cooler. Cooler air and combustion can reduce the chance of the engine knocking. People use it when they’re pushing boost and trying to keep things under control.

Term

black smoke

Black smoke usually means the engine isn’t burning the fuel completely. That often happens when there’s too much fuel for the amount of air the engine is getting. It’s a sign something about the tune or boost is pushing the engine into a rich/inefficient burn.

Term

CFM

CFM is a measure of airflow. When people say a cylinder head flows a certain number of CFM, they mean it can move that much air during testing, which affects how much power the engine can make.

Term

head

“Head” means the cylinder head on the engine. It has the passages where air goes in and exhaust goes out, so if it flows more air, the engine can usually make more power.

Term

law spray

This sounds like a name for a specific nitrous/spray setup they’re using. The transcript isn’t clear enough to say exactly what system it is, but it’s being compared to how much nitrous was used.

Term

dyno blips

A “dyno blip” is a very quick rev on a dyno—like a short tap of the throttle. It can show a brief peak, but it may not reflect how much power the truck makes when you hold it steady.

Chevrolet Spin
Car

Chevrolet Spin

The Chevrolet Spin is a family-oriented vehicle meant for carrying people and everyday cargo. In this kind of discussion, it’s brought up because it can be used to talk about how tires grip the road and how the car behaves when power is applied.

Term

hub dyno

A hub dyno measures power closer to where the wheels connect to the drivetrain. Because it can reduce tire slip, it can give more consistent numbers than setups that rely on the tires gripping rollers.

Term

load

On a dyno, “load” is how much resistance the test machine puts on the drivetrain. More load generally means the engine has to work harder, which can change the power reading.

Concept

competition set

A “competition set” means the rules for how the dyno test is done. If everyone follows the same settings, the power numbers are easier to compare fairly.

Term

resistance

Here, “resistance” means how hard the dyno is trying to slow the truck down. Higher resistance usually means the engine is working harder, which affects the dyno results.

Term

gear changes

Gear changes are when the transmission shifts to a different gear ratio. Because each gear changes how engine RPM relates to the rollers, it can throw off dyno calculations if the test is calibrated for one RPM range.

Term

torque

Torque is the twisting force that helps the car accelerate, especially from low speeds. The dyno can estimate torque using RPM and horsepower, even if it’s not directly measuring torque with a torque sensor.

Term

downshift

A downshift is when you shift into a lower gear. That usually makes the engine spin faster, and on a dyno it can affect how the machine calculates torque if the test assumptions don’t match the new RPM.

Term

dyno pull

A dyno pull is a test run on a machine that measures how much power your car makes. The dyno measures things like wheel/roller speed and load, then uses that to calculate horsepower and torque.

Term

big fuel

“Big fuel” means adding extra gasoline to go with the extra oxygen from nitrous. It’s part of keeping the engine from running too lean, but it has to be tuned so it doesn’t cause other problems.

Concept

different competition

They’re saying the rules and how the event is set up determine what tactics are allowed. If you want a different outcome, you may need to compete in a different series or event with different rules.

Term

five seconds

“Five seconds” sounds like a rule about how long something has to happen to count. It’s meant to stop people from creating a quick, artificial peak that doesn’t last.

Tesla Semi
Car

Tesla Semi

The Tesla Semi is a large electric truck used to move cargo. Instead of using diesel, it runs on electricity, which affects how it’s powered and how it’s operated.

Term

horsepower numbers

Horsepower is a measure of how much power an engine makes. “Horsepower numbers” here means the power readings they got from testing the car on a dyno.

Term

nitrous quantity

Nitrous oxide is a chemical boost system that helps the engine make more power. “Nitrous quantity” means how much of that boost they’re using during the test.

Term

dino slapping

“Dino slapping” is slang for getting big dyno numbers by timing or manipulating the test. The idea is that you might see a high peak reading without the engine being worked in the same way for a long, steady run.

Term

roller

On a dyno, the car’s wheels sit on a spinning roller. That roller helps the machine apply load so it can measure power as the RPM changes.

Concept

setup

In drag racing, “setup” means how the car or truck is prepared and tuned for the run. It’s the difference between a jerky, inconsistent pull and a smooth one that hooks up and accelerates cleanly.

Term

turbo 400

“Turbo 400” refers to the GM TH400 automatic transmission, known for handling high power and torque. It’s a popular choice in drag racing and high-horsepower builds because it’s robust and widely supported by aftermarket parts.

Topic

drag racing

Drag racing is racing where cars accelerate as fast as possible in a straight line. The way power is measured and delivered matters a lot for getting good launches.

Topic

sled pulling

Sled pulling is when a vehicle drags a heavy sled to test power and traction. It’s another kind of event where how the car makes and applies torque matters.

Term

tuning

Tuning is adjusting the car’s computer settings so the engine runs the way you want. On a dyno, tuning is how you dial in the right fuel/air and boost behavior for the setup.

Term

tire choice

Tire choice means which tires you use for the test. On a dyno, different tires grip and roll differently, so they can change the power numbers you see.

Term

gear ratio

Gear ratio is how the transmission multiplies the engine’s turning speed to the wheels. On a dyno, picking the gear ratio changes the RPM and load the engine sees, which can change the measured results.

Term

strapping location

Strapping location is where the dyno straps attach to hold the vehicle in place. It can matter because it changes how the car is held under load, which can affect how consistent the dyno results are.

Concept

dyno slapping it

“Dyno slapping it” means doing a dyno run in a careless way, without setting things up properly. The concern is that the numbers might not be trustworthy, even if the car is making real power.

Term

mile an hour

“Miles an hour” (mph) is just a way to measure speed. They’re arguing about what speed the sled actually hit, and that matters for safety.

Concept

getting it out of the hole

“Out of the hole” means the very start when the car launches. It’s the moment where traction and power delivery decide how well you get moving.

Term

nitrous oxide

Nitrous oxide is the stuff used in “nitrous.” It adds extra oxygen so the engine can burn more fuel and make extra power quickly.

Term

fuel only

“Fuel only” means you’re not using nitrous. The engine makes power normally, just using fuel (and the usual engine controls).

Term

hitchhike

Hitchhike is a sled-pulling setup trick involving the hitch/connection angle. It changes how the sled pulls on the truck, which can affect traction and control. Race organizers often limit it because it can be used to gain an unfair advantage.

Concept

UCC 2026 rulebook

A rulebook is the official document that lists what’s allowed and what isn’t in a competition. The host is saying that, according to the UCC 2026 rules, their setup was within the legal limits. It also usually includes safety requirements.

Term

hitch bar angles

Hitch bar angles are the angles of the bars that connect the truck to the sled. Those angles change how hard the sled “pulls back” on the truck. In competition, the rules often limit these angles so teams can’t cheat the setup.

Term

chassis swap

A “chassis swap” usually means you take the car’s main frame/structure out and put a different one in. Here, the speaker says that’s not what happened—they changed parts of the under-structure instead of fully swapping the whole frame.

Term

four links

“Four links” is a type of suspension that uses four arms to control how the axle moves. It helps keep the wheels positioned correctly as the truck goes over bumps or accelerates/brakes.

Term

sub chassis

A “sub chassis” is like a smaller frame bolted to the main frame. It’s used to mount parts more effectively, and in this case it’s part of how they reworked the truck’s under-structure.

Term

supporting bars

Supporting bars are extra metal braces that reinforce the frame. In competitions, rules often limit how you can add them, so the host is talking about what’s allowed and how to stay compliant.

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