BORGWARNER 177287 S400SX4 TURBOCHARGER — S480/96, 1.32 A/R, T6 HOUSING

Product Description

The BorgWarner 177287 S400SX4 (S480/96) is a proven big-frame AirWerks charger built for serious street/strip and pulling builds. Its 80mm extended-tip compressor and 96mm turbine are paired with a 1.32 A/R divided T6 housing for strong top-end flow and balanced drive pressure on high-fuel setups. BorgWarner S480, S400SX4-80, S400SX4, 177287 turbo, CPP Diesel, diesel performance turbo, 80mm compressor, 96mm turbine, T6 twin scroll, AirWerks S400, S480 1.32 A/R, Cummins 5.9 6.7, Power Stroke, Duramax

Performance Highlights

• Compressor: ~80mm inducer (S480) with ported-shroud cover; 5.0" hose inlet; ~4.21" V-band outlet
• Turbine: 96mm wheel with 1.32 A/R divided T6 housing; ~5.75" Marmon discharge
• Center section: twin hydrodynamic journal bearings; adjustable orientation
• Power range: ~800–1100+ HP depending on fuel, cam, and tuning

Fitment & Use

Universal performance turbo commonly used on high-output 5.9L/6.7L Cummins, Power Stroke, and Duramax builds as a large single or the atmospheric charger in S300/S400 compounds. Verify T6 manifold, downpipe (5.75" Marmon), charge piping (4.21" compressor outlet), and oil feed/drain (-4AN / -10 to -12AN) before install.

Cross-Reference / Alternatives (BorgWarner on CPP Diesel only)

• BorgWarner 171701 — S471/96, 1.32 A/R, T6
• BorgWarner 171702 — S475/96, 1.32 A/R, T6
• BorgWarner 179180 — S480/87, 1.25 A/R, T6
• BorgWarner 171698 — 96mm Turbine Housing, 1.32 A/R, T6
• BorgWarner 14961019007 — 96mm Turbine Housing, 1.15 A/R, T6
• BorgWarner 14961016101 — 96mm Turbine Housing, 1.45 A/R, T6
• BorgWarner 14961016100 — 96mm Turbine Housing, 1.58 A/R, T6

FAQ

How much horsepower can 177287 support?

With adequate fuel and tuning, the S480/96/1.32 T6 configuration typically supports ~800–1100+ HP. Results vary by displacement, turbine drive ratio, ambient conditions, and camshaft.

Is it better as a single or in compounds?

It works in both, but it is most popular as the atmospheric charger in S300/S400 compounds for excellent EGT control and headroom. As a single, expect later spool and plan gearing accordingly.

What housing and outlet connections does it use?

A divided T6 inlet with a 5.75" Marmon turbine outlet, plus a 5.0" compressor inlet and ~4.21" V-band compressor discharge (verify before ordering).

Do I need an oil feed restrictor?

Journal-bearing S300/S400 typically do not require a restrictor. Prioritize a free-draining return (-10AN to -12AN) and correct oil weight as per your build.

Specifications for BORG WARNER 177287