Turbosmart GenV IWG Actuator Without Sensor Cap For BorgWarner EFR Turbochargers

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Turbosmart GenV IWG Actuator Without Sensor Cap For BorgWarner EFR Turbochargers

Turbosmart GenV IWG (Internal Wastegate Actuator) Range provides improvements in boost control over your factory actuator. The large working surface area of their unique diaphragm system ensures increased boost response and control, at any performance or boost level. Using Turbosmart’s locking collar system, you can also quickly change your base spring selection from 5, all the way up to 26psi. The Nitronic guide & Hard Chromed Intermediate Rod, mated with the swivel joint system ensure the best possible lower chamber seal for true twin port control strategies, unequaled actuation range, and control.

Turbosmart GenV Twin Port Internal Wastegate Actuator to suit Borg Warner EFR Series Turbochargers. This IWG actuator has it all taking technology from the award-winning GenV range of External Wastegates and providing unparalleled actuator performance. 

Turbosmart GenV IWG Actuator Without Sensor Cap For BorgWarner EFR Turbochargers with sensor cap can be found HERE.


  • GenV cap including 1/8NPT reference ports
  • True Twin Port Control for a wide boost control window
  • Hard chromed Intermediate rod & nitride guide for cycle tested & proven reliability
  • Proprietary Swivel Joint for complete linear actuation
  • 3 Secondary rods included ensuring fitment to all B1 & B2 single & twin scroll EFRs

What's Included in the box? 

Everything you will need to get up and going with a Borg Warner EFR Turbocharger. That is, our swivel adaptor allows fitment of any rod you need quickly and easily & we took this opportunity to put all the parts, for all the current EFR range in one box. All 3-rod options and every spring you could need are inside the box, ready for you to set up, on your EFR.

Is this a universal product? 

No, this part number is specifically put together to suit EFR Turbochargers…. However, those handy will quickly realize there is a lot in this box that can be customized. You have a few rod options and all the springs. If you have a small bar bender and consider yourself capable, you’d be surprised what you could come up with.

What do I need a sensor cap for?

Not everyone will – But for those interested, or pushing the absolute limits… We’ve found having a wastage position sensor is an important value to the data log. We’ve even worked with some engine calibrators on using that sensor for closed loop, highly technical boost control strategies. More data is always better.

What spring options does the Gen-V IWG have?

You effectively have 7 options; 5psi, 7psi, 12psi, 19psi, 14psi, 21psi & 26psi with the use and combination of just 3 springs. And remember, this is just base mechanical spring pressure. Much higher levels of boost can be achieved with some type of boost control or reference manipulation.

What is a twin port and why would I need it?

Twin Port boost control provides for pressure manipulation on both sides of the diaphragm of the actuator. In the simplest of terms, this means you can have a much broader range of boost control options & often able to fit a much softer spring while still able to run very high levels of boost. This is because you can force pressure into the top cap, keeping the gate shut for longer.


  • Wastegate not actuating
    • Confirm signal hose is plumbed to a pressure-only source, confirm pre-load during installation.
  • Poor wastegate actuation
    • Ensure signal hose is not shared and is sourced as close to the compressor as possible, check the seal on fittings.
  • Poor wastegate actuation
    • Confirm no obstructions in the actuator rod path.
  • Boost creeping at high rpm
    • Wastegate flow path is poor, the wastegate is too small for the application, ensure ball-joint is not seized.
  • Failing the above, submit a technical request to Turbosmart with information about your engine configuration and photos of the installation.

If you have questions about this product, contact us

SKU TS-0620-4012
Sort By Wastegates
Product Name Turbosmart GenV IWG Actuator Without Sensor Cap For BorgWarner EFR Turbochargers
Weight 3.000000
Brand Turbosmart
Brands Turbosmart
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