Turbosmart TS-0612-1142 IWG75 Wastegate Actuator for 14PSI GM LTG2.0L

Vehicle Fitment

• GM LTG 2.0L Turbocharged Engines (including Chevrolet Camaro, Cadillac, Commodore variants)

Features

• IWG75 internal wastegate actuator designed for GM LTG 2.0L turbo applications
• Pre-installed 14 PSI (1.0 BAR) base boost pressure spring for enhanced boost control
• Increased diaphragm surface area for improved working ratio and responsiveness
• Proprietary Silicon Nomex reinforced diaphragm for high temperature durability
• High-grade billet aluminum housing for strength and corrosion resistance
• Stainless steel actuator rod and clevis for long-term reliability
• Turbosmart locking collar system for secure and adjustable preload
• Optional spring upgrades available (3-26 PSI) for custom tuning
• Direct bolted fitment to compatible turbocharger setups with included bracket

Specifications

• Part Number: TS-0612-1142
• Product Type: Internal Wastegate Actuator
• Series: IWG75
• Base Boost Pressure: 14 PSI (1.0 BAR)
• Engine Compatibility: GM LTG 2.0L turbocharged engines
• Application: Chevrolet Camaro, Cadillac, and Holden/Commodore models with LTG turbo
• Construction: Billet aluminum actuator body
• Diaphragm Material: Silicon Nomex reinforced diaphragm
• Rod and Clevis Material: Stainless steel
• Mounting: Vehicle-specific bracket and hardware included

Included Components

• 1x Turbosmart IWG75 Internal Wastegate Actuator
• 1x Vehicle-specific mounting bracket
• 1x Pre-installed 14 PSI actuator spring
• 1x Swivel hose barb fitting
• 1x Hardware and fastener kit
• 1x Protective water ingress hood

Product Description

The Turbosmart TS-0612-1142 IWG75 Internal Wastegate Actuator is engineered for turbocharged vehicles using the GM LTG 2.0L engine family, such as certain Chevrolet Camaro, Cadillac, and Holden/Commodore models. Featuring a pre-installed 14 PSI (1.0 BAR) base boost spring, this upgraded actuator enhances boost response and regulation over many stock wastegate actuators by increasing the effective diaphragm working area. The result is a broader boost curve with improved responsiveness across the RPM range. :contentReference[oaicite:0]{index=0}

Built with a high-grade billet aluminum housing, a Silicon Nomex reinforced diaphragm, and stainless steel actuation components, the TS-0612-1142 offers durability under high temperatures and pressures typical of modern turbocharged engines. The Turbosmart locking collar system ensures secure preload settings, while optional spring upgrades allow tuners to tailor boost behavior to specific performance goals. Installation is straightforward using the supplied vehicle-specific bracket and hardware, though ECU tuning and calibration are typically recommended when altering base boost pressures beyond factory settings.

This actuator is ideal for enthusiasts and tuners looking to improve throttle response and turbo performance on LTG 2.0L applications without extensive modifications. While the 14 PSI setting matches many factory boost targets and provides a direct bolt-on solution, additional tuning may be required to ensure safe air-fuel ratios and engine reliability at elevated boost levels.