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Precision-Wound Replacement Actuator Spring for Turbosmart Gen V Internal Wastegate Applications
The Turbosmart Gen V IWG 14psi replacement spring is an internal wastegate actuator spring designed to set a 14psi baseline boost pressure in compatible Turbosmart Gen V internal wastegate setups. This spring directly replaces the factory actuator spring in Gen V IWG applications, allowing tuners and enthusiasts to dial in a specific base boost pressure without changing the actuator unit. Turbosmart springs are precision-wound to consistent preload specifications, ensuring repeatable boost onset and reliable actuation across the full operating temperature range.
Key Features
- 14psi base boost pressure rating for Gen V IWG applications
- Precision-wound for consistent preload and actuation
- Direct drop-in replacement for Gen V internal wastegate actuator spring
- Allows base boost tuning without actuator replacement
- Manufactured by Turbosmart to OEM-equivalent tolerances
- Sold as a single replacement spring
Specifications
| Detail | Value |
|---|---|
| Part Number | IWG-14PSI (Gen V) |
| Brand | Turbosmart |
| Type | Internal Wastegate Actuator Replacement Spring |
| Base Boost Pressure | 14psi |
| Compatibility | Turbosmart Gen V Internal Wastegate (IWG) |
| Quantity | 1 Spring |
| Condition | New |
| UPC | N/A |
What's Included
- 1x Turbosmart Gen V IWG 14psi replacement actuator spring
About Turbosmart
Turbosmart is a globally recognized turbocharger management manufacturer offering wastegates, blow-off valves, boost controllers, and replacement components. Their Gen V internal wastegate lineup is used across street and competition turbocharged builds, and the replacement spring program allows precise base boost tuning without replacing the actuator.
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Frequently Asked Questions
What is the Turbosmart Gen V IWG 14psi spring?This is a precision-wound replacement actuator spring rated at 14psi for use in Turbosmart Gen V internal wastegate actuators. It replaces the existing spring to set a 14psi base boost threshold in the wastegate actuator without requiring a full actuator replacement.
What does changing the IWG spring do to boost pressure?The IWG actuator spring sets the baseline boost pressure at which the wastegate begins to open. Replacing the spring with a higher-rated unit increases the base boost threshold, allowing the turbocharger to build more pressure before the wastegate cracks open. A 14psi spring sets the base at 14psi.
Will this spring work with all Turbosmart Gen V internal wastegate actuators?This replacement spring is designed for the Turbosmart Gen V IWG actuator series. Verify your specific actuator model is Gen V compatible before ordering. Earlier or later Turbosmart IWG actuator generations may use different spring dimensions.
Do I need a boost controller with this 14psi spring?A boost controller allows you to run boost above the base spring pressure by metering pneumatic signal to the actuator. With a 14psi spring and a boost controller, a properly tuned setup can target boost levels above 14psi. Without a boost controller, the base boost will be approximately 14psi.
Is the Turbosmart 14psi IWG spring suitable for daily-driven turbocharged vehicles?Yes. A 14psi base spring is a common configuration for street-driven turbocharged cars. The spring sets the base boost level, and a boost controller or ECU-managed solenoid can raise the boost target above the spring's base rating for performance driving.
How do I install the Turbosmart Gen V IWG replacement spring?Spring replacement requires disassembling the actuator cap of the Gen V IWG unit, removing the existing spring, and installing the new 14psi spring before reassembling. Consult Turbosmart's Gen V IWG service documentation for the exact disassembly procedure for your actuator variant.
What happens if I run a spring that is too stiff for my turbocharger?Running a spring rated higher than your turbocharger's maximum boost capability can prevent the wastegate from opening at the correct pressure, potentially leading to overboosting. Always verify that your turbocharger and engine are capable of handling the target boost level before selecting a replacement spring.
Can I order multiple Turbosmart springs to test different boost levels?Yes. Turbosmart offers IWG replacement springs in multiple pressure ratings. Ordering several allows you to test different base boost levels during a tune or when changing turbocharger specifications. Contact Black Ops Auto Works for available spring pressure options.
Installation Instructions
- Depressurize the boost system and ensure the engine is cool before working on the wastegate actuator.
- Locate the Turbosmart Gen V IWG actuator on the turbocharger.
- Remove the actuator cap screws or clips following Turbosmart's Gen V IWG disassembly instructions.
- Carefully remove the actuator cap and extract the existing spring.
- Install the new 14psi replacement spring in the correct orientation.
- Reassemble the actuator cap and verify all fasteners are torqued to Turbosmart specification.
- Reinstall the actuator on the turbocharger and reconnect boost reference lines.
- Start the engine and monitor boost pressure to confirm correct base pressure before full-throttle use.
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