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GFB T9454 VTA for Borg Warner Turbos (ford / porsche / volvo)

Description

If you want sound with your performance (or performance with your sound!), GFB’s VTA delivers just that! By combining the proven performance benefits of our ground-breaking DV+ with atmosphere venting, the VTA delivers an aggressive blow-off sound, improved throttle response and boost recovery, as well as superior boost holding and reliability in extreme conditions.

 

The factory diverter valve commonly found on these turbos has two distinct issues – reliability, and performance. Oh yeah, it also doesn’t make any noise. Here’s how the VTA addresses these problems.

 

Reliability – There are two ways in which the factory diverter valve can fail; the un-reinforced rubber diaphragm can rupture, and the metal valve stem that slides in the plastic cap can stick. In both cases, there is a risk to the turbocharger, as the ECU will attempt to compensate for a boost leak by increasing the wastegate duty cycle, which increases the turbo RPM significantly.

 

The VTA features CNC machined billet components that last a lifetime and cannot be damaged by high boost pressures or the associated increased charge temperatures.

 

Performance – The factory diverter valve typically operates in only two states – either fully open, or fully closed. When it opens at low boost, or during a partial throttle lift mid-corner, it causes increased lag and a noticeably non-linear boost transition, which is noticeable as a distinct “step” down in power as you roll off the throttle and the valve opens.

 

The VTA however allows the piston to open and close progressively in response to the amount of boost pressure present, so it only vents enough air to prevent compressor surge (the primary purpose of a diverter or blow off valve). This helps to smooth out boost transitions, making the throttle response more linear and predictable, and also minimizes lag introduced by the factory diverter valve.

 

 

 

VTA or DV+?
Depends if you want sound or not. Both valves are constructed with the same quality materials and valve mechanism, and both offer the same performance and reliability benefits. However, the VTA vents to atmosphere for sound whilst the DV+ recirculates the air to keep it quiet.

 

Why choose a VTA over a “BOV spacer”?
“BOV spacers” are cheap and they make sound. But that’s it. All the inherent performance and reliability issues you get with the factory diverter valve remain, because a spacer doesn’t change the factory diverter components or operation method in any way. The VTA improves the operation of the factory diverter valve for sound AND performance.

Make Model Mark Variant EngineCodes BodyStyle DriveType FuelType YearFrom YearTo
Ford Focus MK2 2.5 RS Hatchback Front Wheel Drive Petrol 2009 2011
Ford Focus MK3 2.0 ST Hatchback Front Wheel Drive Petrol 2012 2018
Ford Galaxy MK3 2.0 EcoBoost MPV Front Wheel Drive Petrol 2010 2015
Ford Galaxy MK3 2.0 EcoBoost MPV Front Wheel Drive Petrol 2010 2015
Porsche 911 997 3.6 GT2 RS Coupé Rear Wheel Drive Petrol 2010 2012
Porsche 911 997 3.6 Turbo Convertible All-wheel Drive Petrol 2007 2009
Porsche 911 997 3.6 Turbo Coupé All-wheel Drive Petrol 2006 2009
Porsche 911 997 3.8 Turbo Convertible All-wheel Drive Petrol 2009 2012
Porsche 911 997 3.8 Turbo Coupé All-wheel Drive Petrol 2009 2012
Porsche 911 997 3.8 Turbo S Convertible All-wheel Drive Petrol 2010 2012
Porsche 911 997 3.8 Turbo S Coupé All-wheel Drive Petrol 2010 2012
Volvo C30 T5 Hatchback Front Wheel Drive Petrol 2006 2012
Volvo C30 T5 Hatchback Front Wheel Drive Petrol 2007 2012
Volvo C70 MK2 T5 Convertible Front Wheel Drive Petrol 2006 2007
Volvo C70 MK2 T5 Convertible Front Wheel Drive Petrol 2007 2009
Volvo S40 MK2 T5 Saloon Front Wheel Drive Petrol 2004 2008
Volvo S40 MK2 T5 Saloon Front Wheel Drive Petrol 2007 2012
Volvo S40 MK2 T5 AWD Saloon All-wheel Drive Petrol 2004 2008
Volvo S40 MK2 T5 AWD Saloon All-wheel Drive Petrol 2007 2012
Volvo V50 MW T5 Estate Front Wheel Drive Petrol 2004 2010
Volvo V50 MW T5 AWD Estate All-wheel Drive Petrol 2004 2010
Volvo V50 MW T5 AWD Estate All-wheel Drive Petrol 2007 2024
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SKU: T9454

£163.80£139.23 Incl. VAT

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Description

If you want sound with your performance (or performance with your sound!), GFB’s VTA delivers just that! By combining the proven performance benefits of our ground-breaking DV+ with atmosphere venting, the VTA delivers an aggressive blow-off sound, improved throttle response and boost recovery, as well as superior boost holding and reliability in extreme conditions.

 

The factory diverter valve commonly found on these turbos has two distinct issues – reliability, and performance. Oh yeah, it also doesn’t make any noise. Here’s how the VTA addresses these problems.

 

Reliability – There are two ways in which the factory diverter valve can fail; the un-reinforced rubber diaphragm can rupture, and the metal valve stem that slides in the plastic cap can stick. In both cases, there is a risk to the turbocharger, as the ECU will attempt to compensate for a boost leak by increasing the wastegate duty cycle, which increases the turbo RPM significantly.

 

The VTA features CNC machined billet components that last a lifetime and cannot be damaged by high boost pressures or the associated increased charge temperatures.

 

Performance – The factory diverter valve typically operates in only two states – either fully open, or fully closed. When it opens at low boost, or during a partial throttle lift mid-corner, it causes increased lag and a noticeably non-linear boost transition, which is noticeable as a distinct “step” down in power as you roll off the throttle and the valve opens.

 

The VTA however allows the piston to open and close progressively in response to the amount of boost pressure present, so it only vents enough air to prevent compressor surge (the primary purpose of a diverter or blow off valve). This helps to smooth out boost transitions, making the throttle response more linear and predictable, and also minimizes lag introduced by the factory diverter valve.

 

 

 

VTA or DV+?
Depends if you want sound or not. Both valves are constructed with the same quality materials and valve mechanism, and both offer the same performance and reliability benefits. However, the VTA vents to atmosphere for sound whilst the DV+ recirculates the air to keep it quiet.

 

Why choose a VTA over a “BOV spacer”?
“BOV spacers” are cheap and they make sound. But that’s it. All the inherent performance and reliability issues you get with the factory diverter valve remain, because a spacer doesn’t change the factory diverter components or operation method in any way. The VTA improves the operation of the factory diverter valve for sound AND performance.

Make Model Mark Variant EngineCodes BodyStyle DriveType FuelType YearFrom YearTo
Ford Focus MK2 2.5 RS Hatchback Front Wheel Drive Petrol 2009 2011
Ford Focus MK3 2.0 ST Hatchback Front Wheel Drive Petrol 2012 2018
Ford Galaxy MK3 2.0 EcoBoost MPV Front Wheel Drive Petrol 2010 2015
Ford Galaxy MK3 2.0 EcoBoost MPV Front Wheel Drive Petrol 2010 2015
Porsche 911 997 3.6 GT2 RS Coupé Rear Wheel Drive Petrol 2010 2012
Porsche 911 997 3.6 Turbo Convertible All-wheel Drive Petrol 2007 2009
Porsche 911 997 3.6 Turbo Coupé All-wheel Drive Petrol 2006 2009
Porsche 911 997 3.8 Turbo Convertible All-wheel Drive Petrol 2009 2012
Porsche 911 997 3.8 Turbo Coupé All-wheel Drive Petrol 2009 2012
Porsche 911 997 3.8 Turbo S Convertible All-wheel Drive Petrol 2010 2012
Porsche 911 997 3.8 Turbo S Coupé All-wheel Drive Petrol 2010 2012
Volvo C30 T5 Hatchback Front Wheel Drive Petrol 2006 2012
Volvo C30 T5 Hatchback Front Wheel Drive Petrol 2007 2012
Volvo C70 MK2 T5 Convertible Front Wheel Drive Petrol 2006 2007
Volvo C70 MK2 T5 Convertible Front Wheel Drive Petrol 2007 2009
Volvo S40 MK2 T5 Saloon Front Wheel Drive Petrol 2004 2008
Volvo S40 MK2 T5 Saloon Front Wheel Drive Petrol 2007 2012
Volvo S40 MK2 T5 AWD Saloon All-wheel Drive Petrol 2004 2008
Volvo S40 MK2 T5 AWD Saloon All-wheel Drive Petrol 2007 2012
Volvo V50 MW T5 Estate Front Wheel Drive Petrol 2004 2010
Volvo V50 MW T5 AWD Estate All-wheel Drive Petrol 2004 2010
Volvo V50 MW T5 AWD Estate All-wheel Drive Petrol 2007 2024

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