BorgWarner Turbine Housing S400SX SX 1.00 A/R-T4 VTF (87mm)

This is a BorgWarner S400SX turbine housing, specifically the 1.00 A/R-T4 VTF model with an 87mm inducer. It's a well-built component designed for custom turbocharger applications where you're building a system from scratch or upgrading a key part of an existing setup. The turbine housing is critical because it directs exhaust gases into the turbine wheel, spinning it up to create boost. The 1.00 A/R ratio and T4 flange are common specifications for many performance applications, offering a good balance for a wide range of engine sizes and power goals.

BorgWarner is a well-known name in forced induction, and this housing reflects that. It's made from durable cast iron to handle the high temperatures and pressures of exhaust gas flow. The 87mm inducer measurement refers to the diameter of the turbine wheel's inducer side, which is a key factor in determining how quickly the turbo spools and the overall flow capacity. This housing is designed to fit the S400SX series turbos, making it a direct replacement or upgrade for those specific units. When building a custom turbo system, choosing the right turbine housing is essential for achieving your desired performance characteristics, like quick spool-up or high-end power.