To construct a TTE400 N20, the folks at TTE change the original compressor and employ a far larger and more efficient billet 6+6 wheel and mill the compressor cover to the optimum gap to match the new compressor profile. Notice how they CNC mill the cover to have a smooth transition to the intake inlet, no big step to hinder airflow as you see on the competition's offerings. They replace the original exhaust turbine and CNC mill the turbine housing to install a larger 9 blade turbine for greater gas flow and lower backpressure.
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Genuine Garrett Housings & Components, Highly Efficient Next Gen TTE Billet Compressor Geometry, Larger diameter 76mm billet intakes, Latest Last Gen Larger 9 blade Turbine, Special TTE Reinforced Bearing System, 900+ capable!
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The TTE550 for the N55 motor. Still keeping the original turbocharger the compressor wheel is exchanged for a TTE milled aluminum wheel with state-of-the-art geometry, 7+7 blade so producing extra power. Equally, The Turbo Engineers change the original exhaust turbine for a far larger but very lightweight 9-blade TTE-designed turbine for lower exhaust gas backpressure giving greater performance, yet still giving a good spool response. The Turbo Engineers also fitted a TTE motorsport upgrade bearing system for durability. Equilibrium Precisely balancing the turbochargers is a key critical factor to becoming a TTE upgrade unit as longevity and performance are paramount. Good balance improves acoustics also. Subsequently, great care is taken with all TTE turbochargers to achieving balance standards. Firstly, parts are balanced at slow speeds up to 2800RPM in multiple planes using a single parts machine, then components are assembled and the CHRA are dynamically balanced, but this time depending on the application at up to 250,000 RPM in multiple planes using an in-house VSR machine to acquire the ultimate equilibrium, to a standard far higher than OEM. Each turbocharger is supplied with a serial-numbered balance test result document. Features Genuine Housings & Components Highly Efficient Next Gen Billet Compressor Geometry Optimised Compressor Cover Machining Clearances Genuine diverter valve Fitment As Original. Plug & Play TTE Billet Larger Compressor Wheel 56mm Inlet TTE High-Flow Bigger Turbine (Unlike others that retains stock turbine) Motorsport Bearing Pack 550 PS Proven Single parts finely balanced then components assembled and core high-speed VSR balanced Supplied with a balance test result document Proven TheTurboEngineers quality Software recalibration is required Made in Germany
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At the core of the TTE460 is a larger TTE compressor wheel, chosen because it is highly efficient and creates an extremely high flow for comparative size. Re-Profiled compressor cover to optimized tolerance to ensure maximum compressor efficiency is given. The original exhaust turbine is retained but modified for greater flow
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