Product description
Replace the factory 1.15 a/r turbine housing on your 1994-1997 7.3L Power Stroke with this tighter 1.0 housing for quicker spool-up and increased boot pressure. The smaller 1.0 housing will improve drivability and effectively move your usable power band lower into the RPM range.
BOR-170307 (BorgWarner part number 170307, often cross-referenced or sold as 170310 in some listings) is a genuine OEM turbine housing (exhaust side) for the TP38 turbocharger series, specifically an upgraded performance replacement for 1994.5-1997 Ford 7.3L Powerstroke diesel engines (OBS/early non-obsessed models). This housing is a popular "quick spool" upgrade over the stock ~1.15 A/R housing, tightening the scroll for faster turbo response, reduced lag, quicker low-end torque buildup, and better drivability in towing, daily driving, or mildly modified trucks.
Key Features & Specifications
Model/Series: TP38 turbine housing (BorgWarner/Garrett TP38 family for early 7.3L Powerstroke).
A/R Ratio: 1.00 A/R 1.00 effective; tighter than stock 1.15 A/R for improved spool-up��provides ~4 psi more boost potential and quicker response without needing major fueling changes.
Inlet Configuration: T4 divided / twin scroll (twin volute for better exhaust pulse separation and reduced drive pressure).
Outlet: V-band or Marmon-style (quick-release for easy sealing and install).
Material: High-temperature cast iron for excellent durability under high EGTs in diesel applications.
Turbine Wheel Compatibility: Direct fit for stock TP38 turbine wheel (~70-74mm exducer typical); works seamlessly with stock or upgraded billet compressor wheels in hybrid/performance builds.
Power Range: Stock replacement ~215-275 hp;
