Stainless steel is a superior material choice for manifolds and turbine housings in turbocharged engines which operate at extreme EGTs. 64 A/R T25, 0.83 A/R T3 and 0.92 A/R internal WG or 1.05 A/R external WG T4 twinscroll footprints, all use a 3" Vband outlet. There are (4) investment cast stainless steel turbine housings that make up the initial release of the EFR series (with more to come). design works in concert to allow best possible efficiency, high speed capability and durability. ![]() Impossible in the past due to material stress limitations, the combination of Gamma-Ti and the exciting new. Going one step further, the Superback shape adds a curved profile to the backdisk and effectively lowers centrifugal stresses - improving stability at elevated rotational speeds. This feature allows for incredibly smooth (low energy loss) guidance of exhaust flow out of the housing and into the blade channels. The fullback wheel hubs employ a full aerodynamic back-disk, meaning that the hubline extends all the way to the inlet tip. The EFR debut marks the first time Gamma-Ti has been offered to the public across a range of turbine wheel sizes and at an enthusiast's price point.ĮFR Gamma-Ti Turbine wheels come in six sizes: 55mm, 58mm, 64mm, 70mm, 74mm, and 80mm OD (turbine inducer diameter) and utilize the latest generation Fullback/Superback turbine wheel blade aero designs specifically tailored for high turbine efficiency and high flow at elevated boost levels. Further strength benefits are realized at high temperatures as Gamma-Ti gains ductility and exhibits very high stiffness-to-weight ratios with good vibration damping characteristics. This approximate 1:1 turbine:compressor weight ratio dramatically improves turbo response. ![]() Comprised primarily of titanium and aluminum (titanium-aluminide) with other trace elements, the Gamma-Ti turbine wheel is so light it's nearly the same weight as the forged-machined aluminum compressor wheel. This material innovation is not quite metal and not quite ceramic, it is considered an "inter-metallic compound". All EFR turbine wheels are made from a high performance lightweight material known as "Gamma-Ti". The most exciting technology in the EFR package is the low inertia Gamma-Ti Turbine Wheel. Features like ceramic ball bearings, FMW compressor wheels, and Gamma-Ti turbine wheels were combined with Twinscroll stainless steel housings as our intention to maximize the performance of these turbos in every possible way. Engineering decisions were made that embody the state-of-the-art in high performance turbocharging. What started as a dream-team of engineering partners designing a turbocharger lineup from scratch - refusing to be limited by availability of what already exists - resulted with EFR turbochargers. ![]() Probably not going to be owning one for a while, but man if I had the means. The scary question is how much do they cost. Ceramic BB CHRA's investment cast SS turbine housings, and a whole lot more. Well, I think that BW has launched themselves to the top of the turbo heap These things are friggin nuts! Billet ETT compressors, completely redesigned titanium/aluminide turbines which are 50% lighter than Inconel.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |