Turbo Spec Form
True North Turbos TNT5R JB 88mm T6
Ships from Canada: no duties, no tariffs
- No customs, duties, tariffs or brokerage fees. Your order never crosses a border.
- Priced in Canadian dollars, with no exchange rate or border delays.
GST/HST is calculated at checkout.
US orders ship from Canada
US customs duties, tariffs and any carrier brokerage fees are not included in our prices and are the buyer's responsibility.
Ships worldwide from Canada
Import duties, taxes and brokerage fees for your country are charged by the carrier on delivery.
The TNT5R JB 88mm is the entry point to the journal bearing side of the TNT5R line — the same compressor covers, compressor wheels, and turbine design as the ball-bearing series, on a cast steel center section that brings the platform in at a lower price without touching its aero.
As a supercore the unit weighs just 25lbs, and stays under 65lbs with the largest T6 turbine housing attached. The oil system is non-negotiable: -6 feed, -12 drain, no restrictor — running one causes premature shaft and thrust wear leading to failure.
Key Specs
- 88mm 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: 85,000
- Available in 112x102 T6 turbine housing, multiple A/R options
- Built to order
Frequently Asked Questions
What's the difference between the JB and BB TNT5R?
The JB (journal bearing) TNT5R 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 TNT5R JB 88mm with a restrictor will cause premature shaft and thrust wear leading to failure. It requires a -6 feed and a -12 drain.