GT1446SLM Billet Upgrade Turbo Charger for Holden Trax TJ, Cruze JH, Astra BK BL, Barina TM | Opel Astra PJ

One Brand New Billet Upgrade Turbo Charger with Gaskets

***Please check turbo numbers and OE numbers before ordering***

Our advanced assembly techniques ensure seamless integration of bearings, impellers, and rotor assemblies, forming a powerhouse of efficiency. Every turbocharger is rigorously tested under full-speed simulations to guarantee optimal balance and peak performance. 

Vehicle Fitment

• Holden Trax TJ 1.4L B14NET (LUJ) FWD AUTO (08/2014 - 06/2020)
  Sub-Models Include LT, LTZ
• Holden Cruze JH 1.4L A14NET (LUJ) FWD MAN AUTO (03/2011 - 01/2015)
  Sub-Models Include CD, CD EQUIPE, EQUIPE, SRI, SRI V
  
• Holden Astra BK BL 1.4L B14XFT FWD MAN AUTO (11/2016 - 06/2020)
  Sub-Models Include R, R+, LS, LS PLUS, LTZ, LT
  
• Holden Barina TM 1.4L A14NET (LUJ) FWD AUTO (11/2013 - 06/2017)
  Sub-Models Include RS
  
• Opel Astra PJ 1.4L A14NET (LUJ) FWD MAN AUTO (09/2012 - 12/2013)
  Sub-Models Include 1.4, GTC 1.4
  
• Opel Mokka 1.4L A14NET (LUJ) FWD MAN AUTO (2013)

Sizing and Specifications 

• Turbo Model: GT1446SLM (See below for more information)
• Turbo Number: 781504-5004s

OE Equivalent Numbers

• 860156 55565353

What's Included  

• Turbo Charger Assembly

What Is a Billet Upgrade?

A billet upgrade refers to the use of high-quality, machined billet components in the construction of parts, such as turbochargers. The term "billet" means the part is made from a single block of material (usually aluminum or steel) that is machined down to the final shape, as opposed to being cast or forged.

Key Benefits of a Billet Upgrade:

Strength and Durability:

Billet components are stronger than cast parts because they have a denser, more uniform grain structure. This makes them better suited for high-performance and heavy-duty applications.

Precision and Customization:

CNC machining used for billet parts allows for more precise designs and better airflow optimization, enhancing turbo performance.

Improved Heat Resistance:

Billet materials often handle heat and pressure more effectively than cast alternatives, which is critical for turbochargers operating at high RPMs and extreme conditions.

What Does The Model Number Mean?

GT1446SLM
This is a turbocharger from Garrett’s GT-series, specifically designed for small
displacement engines.

GT:

• Part of Garrett’s GT-series of turbochargers. 
• Known for reliability and efficiency, commonly used in OEM applications for gasoline
  and diesel engines.
  

1446:

• Indicates the size classification:
  14: Refers to the compressor wheel inducer diameter in millimeters,
  suitable for small engines.
  46: Refers to the compressor wheel exducer diameter, capable of moderate
  airflow and boost levels.
• Designed for engines with displacements typically ranging from 1.2L to 1.6L. 

S:

• Stands for Fixed Geometry (non-variable geometry turbocharger). o A simpler, robust design compared to VGT (Variable Geometry Turbo) models.
  

LM:

• Refers to Low-Mass design or a specific variant tailored for particular OEM
  applications.
• "LM" could also denote a lightweight configuration for reduced rotational inertia, improving throttle response. 

Applications:

The GT1446SLM is commonly used in:

• Gasoline Engines:
  Found in performance-oriented compact cars. 
• Turbocharged Small Displacement Engines:
  Engines designed to deliver high performance while meeting emissions and fuel
  economy standards.
• Typically paired with engines meeting Euro 5 or Euro 6 emissions standards. 

Key Features:

• Compact Size:
  Ideal for tight engine compartments, typical in modern small vehicles. 
• Efficient Design: 
  Supports engines requiring quick spool-up and high responsiveness. 
• Durability: 
  Built to handle the high temperatures and pressures of gasoline engine applications. 
• OEM Precision: 
  Specifically tailored for use in performance-oriented and efficient gasoline engines. 

Advantages:

• Quick Spool-Up: Delivers excellent low-end power and fast throttle response.
  
• Fuel Efficiency: Enhances engine efficiency while maintaining strong performance.
  
• Cost-Effective: A simpler fixed geometry design reduces complexity and cost compared to VGT models.
  
• Reliable: Proven to perform well in high-stress, high-temperature environments. 

Summary:
The GT1446SLM is a turbocharger from Garrett’s GT-series, specifically designed for small displacement engines. It features a compact design and fixed geometry (denoted by the "S"), making it an efficient choice for modern gasoline engines that require a balance of performance and fuel efficiency.