What is the advantage of an externally wastegated turbocharger?

An externally wastegated turbocharger allows for more precise control over boost pressure. This is because the wastegate is a separate unit that directly manages exhaust gas flow away from the turbine, preventing overboost and ensuring consistent power delivery.

What does the 0.84 A/R on the turbine housing mean?

The A/R (Area to Radius) ratio of 0.84 for the turbine housing indicates its size and shape. A higher A/R like 0.84 generally means the housing is larger, which helps to better manage exhaust gas flow at higher RPMs and can improve top-end power.

What supporting modifications are typically needed for a turbocharger like this?

Installing a turbocharger of this caliber usually requires significant supporting modifications. These often include upgraded fuel injectors, a higher-flow fuel pump, an engine management system for tuning, and a custom exhaust system to handle the increased exhaust flow.

Turbosmart TS-1 Turbocharger 7170 D4 0.84AR Externally Waste

Name: Turbosmart TS-1 Turbocharger 7170 D4 0.84AR Externally Wastegated
Brand: Turbosmart
SKU: turbosmart-turbosmart-ts-1-turbocharger-7170-d4-0-84ar-externally-wastegated-t14-960268
Price: 2762.09 USD
Availability: BackOrder

Turbosmart TS-1 Turbocharger 7170 D4 0.84AR Externally Wastegated

$2762.09

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

Turbosmart TS-1 Turbocharger 7170 D4 0.84AR Externally Wastegated. Not CARB approved.

Key Features

Fits: Check manufacturer fitment data to confirm compatibility with your vehicle.
Compressor Wheel Size: 71mm
Turbine Housing A/R: 0.84
Wastegate Type: Externally Wastegated
Not CARB approved; cannot ship to California.

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Product Details

The Turbosmart TS-1 Turbocharger features a 71mm compressor wheel and a 0.84 A/R turbine housing with an external wastegate flange. This setup is designed for builds where precise boost control and efficient exhaust flow are critical. The 71mm compressor offers a good balance of airflow for significant power gains while maintaining responsiveness, and the 0.84 A/R turbine housing is well-suited for managing exhaust gas energy across a broad RPM range, especially when paired with an external wastegate for superior boost management.

Constructed with robust materials, this turbocharger is built to withstand the high temperatures and pressures associated with performance applications. The external wastegate setup allows for more accurate control over boost pressure compared to internal wastegates, preventing overboost and ensuring consistent power delivery. This is particularly beneficial for tuners aiming to extract maximum performance and reliability from their engine builds. The 7170 D4 designation indicates specific internal dimensions and wheel profiles chosen for optimal performance characteristics in demanding applications.

When considering the TS-1 turbocharger, it's important to note that it is not CARB approved and cannot be shipped to California. Proper supporting modifications, including fuel system upgrades, engine tuning, and an appropriate exhaust system, will be necessary to realize the full potential of this turbocharger and ensure engine longevity. Consult with a professional tuner to dial in the boost and fuel maps for your specific application.