TNTSF
TNTSF Small Frame Turbos — Drop-In G30/G35 Alternatives
The True North Turbos TNTSF series is a ball bearing small-frame turbo lineup engineered as a direct bolt-on replacement for the Garrett® G30 and G35 series — same footprint, same mounting points, same turbine housing options, no custom fabrication. Every TNTSF runs a water-cooled, oil-lubricated ball bearing centre cartridge, and every unit is designed, machined, assembled, and balanced in Canada by Black Sheep Industries. Spanning 54mm (2.13") to 68mm (2.68") compressor inducers, the lineup supports 720 to 1,110 crank horsepower — at hundreds of dollars less than the equivalent G-Series turbo.
Shop TNTSF Turbos
- TNTSF54 Ball Bearing Drop-In Turbo | 720+HP — the quickest-spooling option in the lineup, flowing 69 lbs/min through a 54mm (2.13") inducer. Out-rates the G30-660, built for response-first street builds.
- TNTSF58 Ball Bearing Drop-In Turbo | 870HP — flows 78 lbs/min through a 58mm (2.28") inducer, the same compressor size as the G30-770, with a rating a full 100 hp higher.
- TNTSF62 Ball Bearing Drop-In Turbo | 935HP — a 62mm (2.44") inducer with an oversized 82mm (3.23") exducer flows 91 lbs/min, out-rating the G30-900 and G35-900 class.
- TNTSF68 Ball Bearing Drop-In Turbo | 1,110HP — a 68mm (2.68") compressor over the full 68x62mm G35-size turbine puts it head-to-head with the G35-1050, at a fraction of the price.
TNTSF vs Garrett® G-Series at a Glance
| Model | Compressor inducer | Rated power (crank) | Comparable G-Series | Its rating (crank) | From (CAD) |
|---|---|---|---|---|---|
| TNTSF54 | 54mm (2.13") | 720+ HP | G30-660 | 660 HP | $2,099 |
| TNTSF58 | 58mm (2.28") | 870 HP | G30-770 | 770 HP | $2,199 |
| TNTSF62 | 62mm (2.44") | 935 HP | G30-900 / G35-900 | 900 HP | $2,299 |
| TNTSF68 | 68mm (2.68") | 1,110 HP | G35-1050 | 1,050 HP | $2,410 |
Both rating columns are crank horsepower, so the comparison is like-for-like — and every TNTSF out-rates its Garrett counterpart. Full spec-by-spec breakdowns, housing options, and platform guidance live in the TNTSF G30/G35 Turbo Guide.
Choosing a TNTSF Size
The TNTSF54 and TNTSF58 prioritize fast spool-up and daily-driver response, making them a strong fit for street builds and mild power goals. The TNTSF62 and TNTSF68 trade a bit of low-end response for additional airflow, better suited to builds chasing more peak power. Every model is offered with a T3 0.83 A/R or dual V-band turbine housing in 0.61, 0.83, 1.01, and 1.21 A/R — the same fitment options G30/G35 builders already plumb for. Not sure which size fits your build? Send us your combo through the Turbo Spec Form and we'll spec it with you.
Frequently Asked Questions
Are TNTSF turbos direct bolt-on replacements for the Garrett G30/G35?
Yes. TNTSF turbos are engineered to the G30/G35 footprint with matching mounting points and turbine housing options, so they install in an existing G30/G35 location without custom fabrication. They are independent True North Turbos units — not Garrett products.
How much power do TNTSF turbos support?
Depending on size, roughly 720 to 1,110 horsepower at the crank. Garrett rates the G-Series in crank horsepower as well, so the two line up directly.
Which TNTSF size should I choose?
The 54mm and 58mm options prioritize fast spool and daily-driver response. The 62mm and 68mm options offer more airflow for higher power goals.
Are TNTSF turbos built in Canada?
Yes. Every TNTSF turbo is designed, machined, assembled, and balanced in Canada by Black Sheep Industries.
Power ratings in this collection are quoted in crank horsepower (HP). Figures previously published in wheel horsepower (WHP) have been restated using our in-house tested conversion — the hardware and its capability are unchanged.
True North Turbos TNTSF turbochargers are designed and manufactured by Black Sheep Industries Inc. They are not manufactured by, affiliated with, sponsored by, or endorsed by Garrett Motion Inc. "Garrett", "G30", and "G35" are referenced solely to identify fitment compatibility.
The Rise of Small Frame Turbos: Big Power in a Compact Package
Small frame turbochargers have become one of the most important upgrades for modern performance builds. They pack impressive power potential into a compact design, fit into tight engine bays, spool quickly, and offer the flexibility tuners need for both street and track applications. At the front of this movement is Black Sheep Industries Inc., home of True North Turbos, a Canadian brand known for pushing the limits of turbocharger efficiency and durability.
Their TNT-SF series—embodies everything enthusiasts love about small frame technology: lightweight construction, fast response, and the ability to deliver serious horsepower without the bulk of larger turbo housings.
What Makes Small Frame Turbos So Effective?
A small frame turbo is exactly what it sounds like: a compact turbocharger designed to fit in tighter spaces while still producing meaningful airflow and boost pressure. The smaller rotating assembly means faster spool times, which translates to better throttle response and stronger low- to mid-range torque. For street cars, autocross vehicles, lightweight track builds, and smaller-displacement engines, the advantages are huge.
Where large frame turbos often sacrifice responsiveness for top-end power, small frame units strike a balanced middle ground. They bring boost in early and hold it steadily—ideal for daily-driven performance cars or compact platforms that require strong drivability.
The TNT-SF Line: Designed for Enthusiasts Who Want More
The TNT-SF line from True North Turbos is built around precision-machined components and clean, efficient housings designed for high flow in a small package. While each model varies in wheel sizing and airflow capability, the entire collection shares a few key traits:
- Fast Spooling Compressor Design: Perfect for engines where responsiveness is important.
- High-Efficiency Compressor Wheels: Engineered to produce impressive flow relative to size.
- Robust Bearing Options: Built for durability under repeated heat cycles and demanding boost levels.
- Compact Housings: Ideal for tight engine bays, transverse layouts, or custom fabrication projects where space is limited.
- Versatile Fitment: Suitable for a wide range of imports, small displacement motors, and custom turbo setups.
Whether you're chasing a responsive street build or a competitive track setup that requires predictable boost delivery, the TNT-SF turbos offer reliable performance without complicating the installation.
Why True North Turbos and Black Sheep Industries Stand Out
True North Turbos has built a strong reputation for delivering top-tier turbochargers backed by the machining and engineering expertise of Black Sheep Industries Inc. Every TNT-SF turbo is crafted with precision, using modern manufacturing processes that ensure consistency, strength, and smooth airflow. The company is deeply rooted in the automotive community, and their products regularly find their way into record-setting cars across the country.
Their focus on quality control—combined with in-house design, testing, and machining—means customers get a turbo that performs exactly as expected. No guesswork, no shortcuts.
Small Frame, Big Potential
The growing popularity of small frame turbos is no surprise. They allow builders to unlock impressive horsepower while maintaining excellent drivability and packaging flexibility. The TNT-SF collection showcases how far this technology has come, offering compact turbo solutions that punch well above their size.
For anyone planning a responsive and powerful forced-induction setup, the small frame options from True North Turbos / Black Sheep Industries Inc. are a proven choice.
Your build may be compact—but your power doesn’t have to be.