HKS Turbo Actuator Upgrade Kit for Toyota Starlet EP82 EP91 4E-FTE – 14030-AT001

Improve turbo boost control on your Toyota Starlet with the HKS Turbo Actuator Upgrade Kit 14030-AT001, designed for the Toyota Starlet EP82 GT Turbo and EP91 Glanza V powered by the legendary 1.3L 4E-FTE turbocharged engine.

Whether you’re restoring an original Starlet GT Turbo or building a modified Glanza V, this genuine HKS actuator provides an adjustable alternative to the factory turbocharger wastegate actuator.

Developed by Japanese performance manufacturer HKS, the kit offers a practical way to alter boost-pressure settings while retaining the existing compatible turbocharger.

With an HKS-listed operating range of 78.5–108 kPa (approximately 0.79–1.08 bar), the actuator provides the flexibility required for carefully planned turbocharged engine upgrades.

Why Upgrade Your Toyota Starlet Turbo Actuator?

The turbocharger wastegate actuator plays an important role in controlling engine boost pressure.

It operates the turbocharger wastegate, helping regulate exhaust-gas flow through the turbine and controlling the pressure produced by the turbocharger.

Over time, the original actuator may become worn or less suitable for a modified engine configuration.

The HKS 14030-AT001 actuator offers an adjustable replacement designed specifically for compatible Toyota Starlet turbo models.

Adjustable Turbo Boost Pressure

One of the main advantages of the HKS actuator upgrade is its adjustable actuator rod.

This adjustment allows an experienced installer to alter the wastegate opening characteristics and set boost pressure according to the vehicle’s engine specification.

Unlike a fixed factory actuator, the HKS upgrade provides additional adjustment flexibility for appropriately tuned vehicles.

Actual achieved boost depends on the turbocharger, control system, installation and engine setup.

Designed for the Toyota 4E-FTE Engine

The Toyota 4E-FTE is a 1.3-litre turbocharged four-cylinder engine fitted to the popular Starlet GT Turbo and Glanza V.

These compact Toyota performance cars remain popular among Japanese car enthusiasts thanks to their lightweight construction and modification potential.

The HKS actuator is designed for compatible applications including:

• Toyota Starlet GT Turbo EP82 – 1989 to 1996
• Toyota Starlet Glanza V EP91 – 1996 to 1999

Please verify the specific production date and existing turbocharger arrangement before purchasing.

Retain the Factory Turbocharger

The HKS Turbo Actuator Upgrade Kit is intended to work with the compatible original turbocharger rather than requiring a complete replacement turbocharger assembly.

This makes it an attractive option for enthusiasts looking to upgrade boost control without immediately undertaking a larger turbo conversion.

The actuator can form part of a carefully planned performance upgrade alongside suitable induction, intercooling, exhaust and engine-management improvements.

Compatible with the Factory LO/HI Boost Switch

HKS lists the 14030-AT001 actuator as compatible with the original Toyota LO/HI boost-switch arrangement.

This allows the factory switching functionality to be retained when the relevant factory boost-control hardware is used and the actuator is installed and configured correctly.

Removing or bypassing factory boost-control components may change this functionality.

HKS Turbo Actuator 14030-AT001 – Key Features

• Genuine HKS performance engineering.
• Vehicle-specific turbo actuator upgrade for Toyota Starlet EP82 and EP91.
• Designed for the turbocharged 1.3L 4E-FTE engine.
• Adjustable wastegate actuator rod.
• HKS-listed boost-pressure range of 78.5–108 kPa.
• Compatible with the factory LO/HI boost system when correctly configured.
• Allows the existing compatible turbocharger to be retained.
• Suitable for carefully planned fast-road and performance builds.

Supporting Modifications for Your Toyota Starlet

Increasing boost pressure can place additional demands on engine fuelling, intake-air cooling and engine management.

For modified Starlet builds, consider the following supporting upgrades.

Fuel System Upgrade

Maintaining appropriate fuel delivery is essential when increasing boost pressure.

Consider the TI Automotive / Walbro 255LPH Fuel Pump Kit for Toyota Starlet GT Turbo and Glanza V for applications requiring an upgraded fuel pump.

This is a complementary upgrade rather than a guarantee that the engine has sufficient fuel delivery for any particular boost setting. Injectors, fuel pressure and calibration must also be assessed.

Performance Intercooler Upgrades

Higher boost levels can increase intake-air temperatures, particularly during repeated hard acceleration.

A properly selected intercooler may help maintain more consistent charge-air temperatures.

Read our Performance Intercooler Upgrades UK Guide to understand the benefits of upgraded intercooling and charge-air cooling.

Explore More Performance Car Parts

Discover additional Japanese performance tuning components, engine upgrades and turbocharging accessories at Performance Car Parts UK.

Installation and Tuning Information

The HKS 14030-AT001 should be installed by a suitably qualified technician familiar with the Toyota 4E-FTE engine and turbocharger boost-control systems.

The official HKS installation instructions specify that radiator removal is required during installation and that additional supporting components may be necessary depending on the boost-control arrangement.

Before increasing boost pressure, the engine’s mechanical condition, fuel delivery and ignition system should be checked.

HKS also specifies the use of premium high-octane fuel after installation. Appropriate engine-management calibration and monitoring are important to avoid excessive boost, inadequate fuelling or engine damage.

Do not assume that fitting the actuator alone will safely increase horsepower. Any performance improvement depends on the complete engine setup and its suitability for the selected boost pressure.

For verified technical details, see the official HKS actuator product and vehicle application catalogue and the HKS 14030-AT001 installation instructions (PDF).

Buy HKS Turbo Actuator Upgrades in the UK

Looking for a genuine HKS turbo actuator for your Toyota Starlet?

The HKS 14030-AT001 Turbo Actuator Upgrade Kit is an application-specific performance upgrade for Toyota Starlet GT Turbo EP82 and Glanza V EP91 owners who want adjustable turbocharger wastegate control.

Order from Performance Car Parts UK and explore supporting components for your next Toyota 4E-FTE performance project.

Part Number: 14030-AT001 | Manufacturer: HKS | Vehicle: Toyota Starlet EP82 EP91 | Engine: 4E-FTE