Momentum Worx

Momentum Worx America's BEST turbo shop for BIG DIESEL Performance upgrades for Caterpillar,Cummins, Detroit & More

08/10/2026

Do Turbos Need an Air Filter? 🤔

Short answer: No… but you absolutely should run one.

Many race vehicles don’t use air filters because they’re chasing every last bit of airflow and want to eliminate even the smallest restriction. On a race-only vehicle that’s inspected frequently, that tradeoff can make sense.

For a street-driven vehicle, it’s a different story.

Without an air filter, dirt, sand, bugs, and other debris can be sucked directly into the turbocharger. Since the compressor wheel can spin well over 100,000 RPM, even tiny foreign objects can chip the blades, throw the wheel out of balance, reduce performance, or completely destroy the turbo.

A quality air filter is a small restriction that provides massive protection. Unless your vehicle is built strictly for the track, it’s one of the cheapest ways to protect your turbo investment.

08/07/2026

OEM spent millions engineering it. So why does the aftermarket exist? 🤔

Because OEMs design for emissions, cost, warranty, noise, and mass production—not maximum performance.

The aftermarket takes that foundation and refines it with better materials, updated wheel designs, improved aerodynamics, and application-specific tuning to unlock more power, faster spool, better reliability, or all three.

OEM is a great starting point. It isn’t always the finish line. 👀

What’s your take—OEM or aftermarket? 👇

08/05/2026

Turbo speed sensors aren’t all the same. 👀

In this video, we’re breaking down the two most common ways turbo speed is measured:

🔹 Compressor wheel speed sensor – Detects each compressor blade as it passes the sensor. The ECU counts those pulses and calculates wheel speed.

🔹 Turbine shaft speed sensor – Uses a magnet mounted to the turbine shaft. Every time the magnet passes the sensor, it creates a pulse that the ECU converts into RPM.

Both accomplish the same goal—measuring turbo speed—but they do it in completely different ways.

Which design do you think is more accurate? Let me know in the comments. 👇

08/04/2026

Why is there a hole in my turbo? 🤔

Believe it or not, it’s probably there on purpose.

Many modern performance and OEM turbochargers have a port for a turbo speed sensor. Instead of estimating how hard the turbo is working based on boost pressure alone, a speed sensor measures how fast the turbo is actually spinning.

There are two common ways this is done:

🔹 Compressor wheel speed sensor – A sensor looks at the compressor wheel and detects each blade as it passes. The frequency of those blade passes is converted into turbo RPM.

🔹 Turbine shaft speed sensor – A magnet is attached to the turbine shaft, and every time it passes the sensor it creates a pulse. The ECU counts those pulses to calculate shaft speed.

So why does turbo speed matter?

✅ Prevents turbo overspeed
✅ Helps optimize turbo sizing and tuning
✅ Compares turbo efficiency beyond just boost pressure
✅ Gives engineers and tuners real data instead of guesswork

Two different sensor designs. One goal: know exactly how fast your turbo is spinning.



Did you know that’s what the “mystery hole” in some turbochargers is for?

07/28/2026

Think your new Holset actuator won’t work on your older 6.7L Cummins? Think again. 👀

Cummins/Holset updated the electronic actuator design over the years, but that doesn’t mean you’re stuck replacing the entire turbocharger.

With the correct jumper harness, you can install the newer-style actuator on many older 6.7L Cummins applications, giving you access to the latest replacement parts without changing the turbo.

✅ Updated actuator compatibility
✅ Plug-and-play with the proper adapter harness
✅ Save time and avoid replacing a perfectly good turbo

Watch the video to see the differences between the old and new actuator designs—and why this simple harness can save you a lot of money and headaches.

07/28/2026

Exhaust housings win races. 🏁

Everyone obsesses over compressor wheels, but the exhaust housing is what determines when and how the turbo makes boost. Choose the wrong A/R and you’ll either choke the engine with high drive pressure and sky-high EGTs, or end up with a lazy turbo that doesn’t come alive until it’s too late.

Get the exhaust housing right, and you’ll build boost where you need it, keep exhaust temperatures under control, and make the engine far more efficient. It’s one of the most overlooked decisions when matching a turbo.

07/27/2026

Think ordering a turbo by the part number is foolproof? Think again. 👀

On many heavy-duty turbos, the exhaust housing can be swapped in just a few minutes. Once that happens, the tag on the turbo no longer tells the whole story. Order the part number on the tag, and you could end up with the wrong A/R, fl**ge, outlet, or housing altogether.

That’s why we always recommend identifying the turbo by the engine and application—not just the number on the tag. It’ll save you time, money, and a whole lot of frustration.

07/26/2026

Ever seen one of those giant buckets at a water park that dumps 1,000 gallons on everyone? Yeah… this 112mm/160mm compressor wheel gives off the same energy. 😂💦

Except instead of water, it’s about to dump an absurd amount of air into a race truck near you. 👀

Who’s ready to hear this thing scream? 🚛💨

07/24/2026

Not all paint marks mean the same thing. Some are evidence that a turbo has been apart. Others are applied during VSR balancing so the laser can track the rotating assembly. Knowing the difference can tell you a lot about a turbo’s history. 👀🔧

07/23/2026

Cast vs. Billet Compressor Wheels 🥸

They might look similar once they’re spinning at 150,000+ RPM, but they’re made in completely different ways.

🛠️ Cast wheels start as molten aluminum poured into a mold, then they’re machined to final dimensions.

⚙️ Billet wheels start as a solid block of forged aluminum and are CNC machined from a single piece, allowing for more aggressive blade designs, tighter tolerances, and often better performance.

Does billet automatically make more power? Not always. Design matters just as much as the manufacturing process.

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