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  • True North Turbos TNT55 JB 98MM T6
  • True North Turbos TNT55 JB 98MM T6

True North Turbos TNT55 JB 98MM T6

Every TNT turbo is designed, machined, assembled, and balanced in Canada.
$2,985.00
$2,985.00
Shipping calculated at checkout.
Black Coating Shown Is Optional
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The TNT55 JB 98mm steps the journal bearing line into serious airflow territory, with turbine housing options up to the 114x108 to match. Same compressor covers, compressor wheels, and turbine design as the TNT55 ball-bearing series, carried on a cast steel center section rated to 80,000 RPM.

Even at this size the supercore weighs just 25lbs — under 65lbs with the largest T6 turbine housing attached. Oil requirements are strict: -6 feed and -12 drain with no restrictor; restricted feed causes premature shaft and thrust wear leading to failure.

Key Specs

  • 98mm compressor wheel, journal bearing, cast steel center section
  • Requires -6 feed and -12 drain — no restrictor
  • Supercore weight: 25lbs; under 65lbs with largest T6 turbine housing
  • Max operating RPM: 80,000
  • Available in 112x102 or 114x108 T6 turbine housing, multiple A/R options
  • Built to order

Frequently Asked Questions

What's the difference between the JB and BB TNT55?

The JB (journal bearing) TNT55 uses a cast steel center section, versus the billet aluminum center section on the BB (ball bearing) version. Both share the same compressor covers, compressor wheels, and turbine design.

Can I run this turbo with a restrictor?

No. Running the TNT55 JB 98mm with a restrictor will cause premature shaft and thrust wear leading to failure. It requires a -6 feed and a -12 drain.