• order now
  • Items in cart: Subtotal:
  • Home
    • Clearance
    • Shop By Category
  • DEALER LOCATOR
  • BECOME A DEALER
  • SUPPORT
  • ABOUT
  • CONTACT
  • LOGIN/REGISTER
  • TRACK ORDER
  • MY ACCOUNT
  • TRACK ORDER
  • DEALER LOCATOR
  • BECOME A DEALER
  • Services
  • Blog
  • CONTACT
  • 0
  • Shop By Category
  • Fittings
  • Intercoolers
  • Silicone
  • Tubing
  • Clearance

treadstoneblog

Garrett Turbo Naming Structure

29 Aug 2013

Today, Garrett turbo has a wider selection of turbochargers available than they ever have before! In the catalog, Garrett product are grouped by their frame size. The turbine frame size of a turbocharger center section or “CHRA” is dictated by its inducer diameter. The bigger the turbine inducer, the larger the frame size, so any garret gt or gtx turbocharger in the GT42 or GTX42 family has a bigger turbine inducer size than those in the GT35 or GTX35 family, and so on. The model name of each turbo or Center section (CHRA), you’ll notice two digits directly after the frame size. These two digits designate the compressor exducer size in diameter, as measured in millimeters. Let’s look at the GTX4294 as an example. The unit has a GTX42 frame size turbine (82 mm) coupled to a 94 mm (exducer dia) comp wheel. If there is an “R” on the end of it, then that means the unit is a ball bearing turbo. So, a GT4294 is not a ball bearing turbo; whereas a GT4294R is a Garrett ball bearing turbocharger. If an “X” appears between the “GT” and the first number, it signifies that this turbo features a billet compressor wheel with “next generation aerodynamics”. The Garret GTX line is visually different in that the wheels typically are forged (billet), fully machined wheels rather than cast.

A Visual Guide to Garrett’s “GT” Model Numbers
  Garret Turbochargers   Courtesy of MAPerformance

Prev Next

join our email list

You’ll be first to know about Treadstone Performance Engineering new products, discounts and special events!

You have successfully signed up to get the best deals.

You have already signed up to get the best deals!!!

All of our products complement the best in performance turbocharging today! Turbonetics, Precision, and Garrett Turbochargers, the pioneers in performance turbocharging! With the knowledge and experience of some of the best names in turbocharging. Treadstone products parallels with quality and reliability, giving you the best products combination in performance turbocharging.

  • MY ACCOUNT
  • TRACK ORDER
  • Search By Brand
  • Search By Category
  • DEALER LOCATOR
  • BECOME A DEALER
  • Services
  • SUPPORT
  • PRIVACY
  • TERMS
  • ABOUT
  • TRE Hub
  • Blog
  • Contact
  • Sitemap

Blog Categories

blog-thumb
Rad Dan - Same Mullet New ...

Jun 09, 2020


blog-thumb
Hoonin' Hooman Rahimi - Tr...

Jun 04, 2020


blog-thumb
Treadstone Intercoolers Ex...

May 19, 2020


blog-thumb
Titanium Pipes are now Ava...

May 07, 2020


blog-thumb
Oil Filter Sandwich Plate...

May 01, 2020


More

Find Us

TreadstonePerformance.com is committed to providing the best online shopping experience and customer support available. If you have any questions, please do not hesitate to reach out.

Business Hours

9:00 am - 5:00pm EST
Monday - Friday
Closed on Saturday and Sunday

10340 SW 187th Street
Miami, FL 33157
Phone: 888-789-4586

Copyright © 2023 Treadstone Performance Engineering. All Rights Reserved

Designed By Admark | Powered By Nebhub

  • Shop by Vehicle

Add a Different Rear Tire SizeDifferent Size
Add Same Rear & Front Tire SizeSame Size

Search by Vehicle