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Forge Motorsport - The Splitter, a Recirculation and Blow Off Valve (VAG)

Description

The Splitter is a truly remarkable valve that gives a combination of blow off and recirculation valve operation, all at the same time, and has been specifically designed for the many turbo engined applications that operate metered airflow management systems. This means you get all the noise of the blow off valve whilst retaining the compatibility with the recirculation requirements of the engine management system. As a bonus we also offer the ability to convert the valve to recirculation only mode for those times when stealth running is required.

This valve uses a Brass piston which utilises new sealing technology along with a variable spring preload, incorporating a ratchet type top adjuster that will allow for the positive and precise adjustment to match the valve to your engine. This is achieved by using a unique single, conical, progressive rate spring, that can allow for the retention of boost pressure over a wide adjustment range. This unique spring design also allows for unrestricted piston travel and flow volume regardless of the amount of pre-load adjustment added to the spring.

Other manufacturers' valves use cylindrical springs with adjustable pre-load, which often experience restricted piston travel and a reduction in flow volume. When we say our products are Engineered For Performance, it's not a catchy sales phrase, it's the truth. and we prove it with every product we manufacture.

Note: This valve requires installing the opposite way to the original Bosch Valve. This means that the side pipe is fitted into the Turbo Intake Hose, and the base pipe connects to the hose that runs to the boost side of the turbo.

 

In The Box:
1 x FMDVSPLTR Valve
1 x Valve Blanking Cap
1 x Instruction Booklet
1 x Forge Sticker

If you are unsure if this product is suitable for your application, please contact us. 

The valve has a port size of 25mm

fits:

Audi
A3
1.8T
A4
1.8T (B5,B6 Models)
A6
1.8T (B5,B6 Models)
S3
1.8T (8L Chassis)
TT
Mk1
150/180BHP
210/225BHP
Seat
Ibiza
Mk2 (6K2) 1999-2002
Petrol
Mk3 (6L) 2002-2008
Petrol
Leon
Mk1 1998-2005
Cupra 1.8T
Cupra R 1.8T
Skoda
Octavia
1.8T
Volkswagen
Beetle
1.8T
Bora (1998-2005)
Golf
MK4
1.8T
Passat
1.8T
Polo
1.8T

 

 


 


 

To service this valve, access the valve piston by removing the 3 cap screws at the base of the valve and simply clean the piston chamber using brake cleaner or similar cleaning fluid before installing the new spring and piston. Please observe the correct spring and piston orientation when installing the serviceable parts, as seen in the attached drawing.

 

Adjustment guide.

First turn the valve adjustment knob all the way down in the anti-clockwise direction, which will adjust the spring it to its lowest tension. Then turn the valve adjustment knob in the clockwise direction to the appropriate tension level, as set out below.

  • Standard engine – 16 clicks.
  • Stage 1 remap – 21 clicks.
  • Stage 2 remap – 25 clicks.

These adjustment recommendations are a general guide and you may find that your engine requires fine tuning by 1 or 2 clicks in either direction to achieve optimum performance.

There will be no significant performance benefit adjusting the valve over 30 clicks as the spring will have reached its maximum operating tension.

 

 

Please Note: In line with our policy to constantly review, revise, and improve our product range, the appearance of the product you receive may differ from the one advertised.

 

Fits Multiple Vehicles

Product form

SKU: FMDVSPLTR

£165.23 Incl. VAT

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Description

The Splitter is a truly remarkable valve that gives a combination of blow off and recirculation valve operation, all at the same time, and has been specifically designed for the many turbo engined applications that operate metered airflow management systems. This means you get all the noise of the blow off valve whilst retaining the compatibility with the recirculation requirements of the engine management system. As a bonus we also offer the ability to convert the valve to recirculation only mode for those times when stealth running is required.

This valve uses a Brass piston which utilises new sealing technology along with a variable spring preload, incorporating a ratchet type top adjuster that will allow for the positive and precise adjustment to match the valve to your engine. This is achieved by using a unique single, conical, progressive rate spring, that can allow for the retention of boost pressure over a wide adjustment range. This unique spring design also allows for unrestricted piston travel and flow volume regardless of the amount of pre-load adjustment added to the spring.

Other manufacturers' valves use cylindrical springs with adjustable pre-load, which often experience restricted piston travel and a reduction in flow volume. When we say our products are Engineered For Performance, it's not a catchy sales phrase, it's the truth. and we prove it with every product we manufacture.

Note: This valve requires installing the opposite way to the original Bosch Valve. This means that the side pipe is fitted into the Turbo Intake Hose, and the base pipe connects to the hose that runs to the boost side of the turbo.

 

In The Box:
1 x FMDVSPLTR Valve
1 x Valve Blanking Cap
1 x Instruction Booklet
1 x Forge Sticker

If you are unsure if this product is suitable for your application, please contact us. 

The valve has a port size of 25mm

fits:

Audi
A3
1.8T
A4
1.8T (B5,B6 Models)
A6
1.8T (B5,B6 Models)
S3
1.8T (8L Chassis)
TT
Mk1
150/180BHP
210/225BHP
Seat
Ibiza
Mk2 (6K2) 1999-2002
Petrol
Mk3 (6L) 2002-2008
Petrol
Leon
Mk1 1998-2005
Cupra 1.8T
Cupra R 1.8T
Skoda
Octavia
1.8T
Volkswagen
Beetle
1.8T
Bora (1998-2005)
Golf
MK4
1.8T
Passat
1.8T
Polo
1.8T

 

 


 


 

To service this valve, access the valve piston by removing the 3 cap screws at the base of the valve and simply clean the piston chamber using brake cleaner or similar cleaning fluid before installing the new spring and piston. Please observe the correct spring and piston orientation when installing the serviceable parts, as seen in the attached drawing.

 

Adjustment guide.

First turn the valve adjustment knob all the way down in the anti-clockwise direction, which will adjust the spring it to its lowest tension. Then turn the valve adjustment knob in the clockwise direction to the appropriate tension level, as set out below.

  • Standard engine – 16 clicks.
  • Stage 1 remap – 21 clicks.
  • Stage 2 remap – 25 clicks.

These adjustment recommendations are a general guide and you may find that your engine requires fine tuning by 1 or 2 clicks in either direction to achieve optimum performance.

There will be no significant performance benefit adjusting the valve over 30 clicks as the spring will have reached its maximum operating tension.

 

 

Please Note: In line with our policy to constantly review, revise, and improve our product range, the appearance of the product you receive may differ from the one advertised.

 

Fits Multiple Vehicles

Useful Information Regarding Forge Motorsport

History Of Forge Motorsport

Forge Motorsport was founded in 1996 with the simple ideals of innovation, clever design, and manufacturing to the highest quality. It evolved from the original Forge Engineering which was created in 1983 to provide innovations and solutions to a variety of industries.

Our company mission states clearly our commitment and direction - 'Working together innovating automotive and engineering solutions.' This mission enables us to deliver our vision of 'instilling confidence and enabling performance in everything we do.'

With the mission and vision established and understood company wide, the design and manufacturing process is driven by a highly skilled and passionate team, who are motivated to produce a range of aftermarket tuning products that are World class.

Continued investment in our staff and our winning team culture gives Forge an unrivalled competitive advantage, allowing us to supply Forge branded products worldwide, through our extensive dealer network or through our sister companies Forge USA in Tennessee, and Forge Asia in Taichung Taiwan..

When you purchase from Forge you are not just buying a part or product, you are joining a unique global contingent of discerning consumers who truly understand value, quality, and service, making the Forge ownership a unique experience.

Our history and heritage allow Forge Motorsport to be preferred suppliers and technical partners providing Homologated parts to BTCC Mini Challenge also the leading names and race teams in the world of Motorsport including: F1, WRC, Rally X, and Le Mans. We also carry out private label work for several OEM automotive manufacturers

Forge Motorsport will deliver you something unique, something that no other manufacturer can offer. You are investing in piece of mind and the knowledge that true business integrity and care does actually exist. You are getting a lifetime of customer service on all our products with a no hassle service/warranty promise. 

You can use the link below to visit our Google Drive where all the Forge Motorsport installation guides are listed!

Once you enter the drive, the fitting guides are listed in Alphabetical order via their SKU

If you encounter any issues please get in touch!

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