Product Description
87lbs / min approx 860 horsepower
S366 AKA 66/73 AKA 66-73 SX-E
BorgWarner Turbo Systems Aftermarket is pleased to announce the release of the AirWerks® SX-E super core assemblies for performance applications. These new part numbers are purpose engineered for both diesel and gasoline high performance applications.
S300 SX-E super cores contain the following exciting new features:
 360 degree thrust bearing
 Compressor cover integrated speed sensor port and pre-machined boost port
 Flexible compressor cover outlet options (S300SX-E only)
 Forged milled (billet) compressor wheels with extended tip technology
 Optimized compressor stage aerodynamics
 Interchangeable with existing turbine housings for upgradability
The BorgWarner super core assembly consists of the compressor cover attached to the cartridge, all cartridge to turbine housing mounting hardware, clamp plates, cap screws and mounting gaskets. Speed sensor and turbine outlet V-band are not included with turbo assemblies. Choose a turbine housing from our extensive list of factory housings as well as our custom cast performance housings.
Compressor Specs:
- Borg Warner 4" Inlet 2.5" outlet compressor housing with port shroud map width enhancement, pre tapped for speed sensor and pressure port. (parts not included and will need to drill through)
- 66.11mm inducer 91.44mm exducer FMW Forged Milled Wheel (Billet)
- Optional compressor Discharge: The factory turbo has a 2.5" hose outlet. We offer a 2nd Gen Machined V Band discharge for 1994-2002 Ram Cummins 5.9, and a 3rd Gen welded elbow for the 2003-2007 Ram Cummins 5.9.
- Optional T51R Mod:
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Optional T51R Mod is where we plug and then CNC machine the inlet of the compressor housing to amplify the turbo whine and whistle. Keep in mind this modification is done after the order is placed and typically ads a week or two before the order is shipped. However, sometimes it can take longer and maybe even up to 4 weeks. If you have ordered other finishing options like ceramic or polishing, it may add additional time on top of the typical 2-3 weeks before your order ships. Because of the labor intensive work and machine time needed, there can be delays beyond what we quote. We do take special care to every order to prepare for shipping and want to make sure you get the highest quality parts and service. We are confident that the quality you receive is worth the wait. We appreciate your patience while we work.
- For more information about the T51R mod, please read this article.
Turbine Specs:
- 73mm exducer, 80mm inducer turbine wheel
- T3 Open Scroll turbine housing available: .63 A/R, 82 A/R, 1.06 A/R with 3.625" V band outlet
- T3 Twin Scroll Cummins Diesel Specific Housings available in .70 (12cm), .70 (12cm) Gated, .80 (14cm), .80 (14cm) Gated, with HX40 and HE351 Outlet
- T3 Twin Scroll turbine housing available: 1.25 A/R with 3.625" V Band Outlet
- T4 Open Scroll turbine Housings available: .68, .81, .88, .96, 1.27 A/R with 3.625" V Band Outlet
- T4 Twin Scroll turbine housings available in .83 Wastegated, .83, .91, 1.00, and 1.10 A/R with 4.21" Marmon, 3.625" V Band, and 4.0" HX40 outlet options
- 3.00" V Band Inlet .82 A/R with 3.625" V band outlet
The bearing housings are not water-cooled and have a 1/4"NPT oil inlet. The oil drain is the standard T3-T4. Lines and fittings are all available here. Flanges and gaskets are available here.
Product Videos
Custom Field
Product Reviews
3 Reviews Hide Reviews Show Reviews
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Custom built turbo for cummins
Kevin at AGP helped me build the turbo I needed for my Cummins 6.7. He answered all my questions and his suggestions were on point! I couldn't be happier and the T51 mod makes it whistle like crazy. 5 stars all the way!
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Borg Warner 366/73
Quality in stock products fast shipping.
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366 turbo
It was nice to be able to get this turbo with a internal waste gate from you guys. It will make my turbo v6 colorado build go a little easier.
