GM 8.3L Duramax Diesel: Gale Banks Does the Math
Gale Banks breaks down the math behind GM’s new 8.3L Duramax V8 (L6P “Mongoose”), evaluating its 555 HP rating, CGI block, flat torque curve, and how a Derringer tuner on an L5P beats it today.
Banks Super-Turbo Marine Diesel Engine
A twin turbo Duramax marine engine gets an extra kick from being supercharged!
It has a very long name and a foreboding look… It’s the Banks Sequential Super-Turbo Marine Diesel. This engine had been on the minds, drawing boards, computer screens, PDA’s, benches and engine stands of the Banks Power engineering, design and race shop staff for some two years. On January 15, 2010, covered in electrical lines that connect to sensors monitoring some 200+ points of information, this very special General Motors Duramax-based V-8 diesel engine fired up first on the try, went effortlessly into a nice, clean 900RPM idle, and sounded to all within earshot as though it was quite eager for the kind of extreme duty service that lied ahead for it. Combining the low speed power and transient response of supercharging with the high speed power and cruising efficiency of twin-turbocharging this new engine is aimed squarely at marine use where, as Gale Banks so aptly puts it, “You’re always going uphill.” Here’s 6.6 liters of clean-burning diesel V-8 that’ll crank out some 800 horsepower and twist up 900 pounds-feet of torque across a working rev range of 1,600 to 4,600 RPM.
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Latest News
- Diesel Gone Wild
It’s turbocharged. It’s supercharged. It’s the Banks Sequential Super-Turbo diesel, and it could change the way you think about diesel power.Read more - A Supercharged and Turbocharged 6.6L Duramax Crate Engine
What’Read more - Banks is Back
The technology used to set diesel drag-racing records is being brought to the water in the form of the Banks new marine diesel V-8, the Sequential Super-Turbo engine.Read more
Latest News
Duramax CoolRunner Oil Pan: Fix Dirty Trapped Oil
Discover the dirty secret hidden in factory Duramax oil pans: an elevated drain plug that traps nearly a half-quart of contaminated sludge every oil change, and how the Banks CoolRunner pan cures it with complete drainage, FlowThru cooling fins, and +2 quarts capacity.
New 2024-2026 Duramax Monster Exhaust: True 5″
Banks introduces the world’s only true 5-inch DPF-back Monster Exhaust for 2024–2026 Duramax 6.6L trucks, using a patented Exhaust Pressure Module to cut backpressure without triggering check engine lights or melting trailers.
Banks R866SC V8 6.6L Supercharged Diesel
The Banks R866SC V8 6.6L Supercharged Diesel is an engineering powerhouse delivering 600-650 horsepower. Featuring a 3.8L Whipple supercharger and custom FEAD, this complete package is built for extreme performance.
2024-2026 Duramax Fuel Economy: Banks Derringer
Banks Derringer High Output tuner does more than just add power to your 2024–2026 Duramax 6.6L. Level 2 is specifically calibrated for improving fuel economyby adding more boost and optimizing fuel injection. And, Level 2 delivers an impressive 60 hp and 90 lb-ft to the wheels. For even more power, bump up to Levels 3-6 for power increases up to 86 hp and 178 […]
Cummins Grid Heater Bolt Fix: Banks Monster-Ram
On all 6.7L Cummins, the factory grid-heater bolt is a known risk: if it breaks loose and reaches cylinder #6, engines are replaced—not repaired—an outcome costing north of $30,000. If you do nothing: the stock grid-heater bolt stays in the system—every start is a roll of the dice, and other replacements “fixes” still choke air flow. […]
Killer Grid Heater Bolt: Hector’s Close Call
Hector’s 2015 RAM 3500 threw an intake-heater code, then his remote start system stopped working. He pulled his intake plate after reading about the killer grid heater bolt. To his horror and delight, he saw “the nut had broken off and was just sitting there” — one drive from disaster. Rather than install another factory heater plate, […]
6.7 Cummins Monster-Ram: Smooth Intake Airflow
Your 6.7L’s stock intake elbow kills airflow with its sharp bend and restrictive air path. That added restriction makes the turbo work harder and dulls response. A Banks Monster-Ram intake elbow takes a different route—literally. We rerouted the #1 fuel line and replaced the restrictive grid heater which allowed us to open the air path and remove […]
RAM Grid Heater Failure: How It Happens & The Fix
RAM 6.7L engines can suffer catastrophic damage as a result of a bolt inside the factory grid heater, which melts and drops into the intake manifold. In this 8-minute close-up, you’ll see exactly what fails, where to look on your truck, and the upgrade that removes the weak link. If you own a 6.7L, this […]
Banks Power 2025 Performance Stats | By the Numbers
Banks Power by the Numbers breaks down the real data behind a record-setting 2025—from millions of video views to testing fuel burned and parts shipped worldwide.
Gale Banks Meets Canadian Diesel Mechanic
A Canadian diesel mechanic visits Banks Power and gets a firsthand lesson from Gale Banks on air density, cold starts, and real engineering behind reliable diesel performance.
Gale Banks Visits Dave Bell at Dave’s Auto Center
“This video is a huge full-circle moment for me,” says an emotional Dave Bell, owner of Dave’s Auto Center in Centerville, Utah and the star of the wildly popular YouTube channel of the same name. “I’ve looked up to Gale Banks since I was 15 years old,” Bell continues. “His engineering and genius has paved the […]