How To: Properly Measure Your Turbo
(and pick the right blanket)
The following information is used when fitting a turbo blanket onto an externally wastegated turbine housing.
If you are trying to fit an internally wastegated turbine housing (meaning the wastegate diaphragm or actuator is physically mounted to the turbo with a rod that actuates the wastegate flapper on the turbine side) then we require a third measurement to correctly place the cutout for the wastegate flapper arm.
To properly size a turbo blanket to a turbine housing we typically use 2 measurements. We use the CIRCUMFERENCE (figure A) and the WIDTH (figure B) of the turbine housing to correctly fit the blanket. Measurements for most externally wastegated turbo housings fit somewhere between the below listed universal housing blankets that we manufacture.
| Part Number: | Housing Size: | Turbine Circumference (in inches): | Turbine Width (in inches): |
| TZ31847 | T25/T28 *Internal Wastegate Clearance | 16″ | 2.75″ |
| TZ32047 | T3 (also fits some small T4 housings) | 17″ | 2.5″ |
| TZ32258 | T4 | 19″ | 3.5″ |
| TZ328511 | T5 (Small frame T6) | 24″ | 4.5″ |
| TZ332611 | T6 (Mid frame T6) | 27″ | 5″ |
| TZ341713 | T6 (Large frame T6) Marine turbo applications | 31″ | 5″ |
Click the part number to be directed to the product page.
If none of the above blankets will fit your housing please >CONTACT US< for the correct fitting blanket.
We also offer a custom blanket building service. Fill out the form >HERE< to have a custom blanket built for your application.