Green Classic & Vintage Spares

Adjustable Dump Valve Single Recirculating (TBV003.20B)

Adjustable Dump Valve Single Recirculating (TBV003.20B)

Regular price £96.00
Regular price £96.00 Sale price £96.00
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TBV003.20B Misc Turbo Dump Valves & Boost Adjusters

Motorsport Adjustable Dump Valve, Single Recirculating Piston (Blue)
Standard Range :- 0.5-1.2 Bar
Uprated Spring Range:- 1.3-3.0 Bar (Supplied in the box)
Available in Red,Black,Blue & Silver
Size Range:- 20,25,34mm

Dump valves are designed to vent unused pressure to atmosphere when the throttle has been released. When accelerating the turbo charger produces positive pressure which is used to supply the engine with large amounts of compressed air. When you lift the accelerator the throttle butterfly is closed and the boost has no escape route, so it backs up through the intercooler and causes back pressure that tries to prevent the turbo from spinning, this is known as compression stall.
By fitting a dump valve every time you release the throttle the excess boost pressure will be released which means a significant reduction in turbo 'lag', contributing towards faster pick up between gear changes. In extreme cases on cars with high revving engines or large turbochargers the shaft within the turbo has been known to snap when no form of dump valve has been used.
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Model Compatibility

Aston Martin DB4 1958-1963
Aston Martin DB5 1963-1965
Aston Martin DB6 1965-1970
Aston Martin DBS 1967-1972
Audi A3 1996-2003
Audi A4 1994-2002
Audi A6 1994-2005
Audi S4 1997-2005
Audi TT 1998-2006
Austin Mini 1959-2000
Bentley Continental GT 2003-2019
BMW 3 Series E36 1990-2000
BMW 3 Series E46 1998-2006
BMW 5 Series E39 1995-2003
BMW M3 E36 1992-1999
BMW M3 E46 2000-2006
BMW Z4 2002-2008
Ferrari 360 Modena 1999-2005
Ferrari F430 2004-2009
Ford Escort RS Turbo 1984-1990
Ford Fiesta ST 2004-2008
Honda Civic Type R EP3 2001-2005
Honda Integra Type R DC2 1995-2001
Lamborghini Gallardo 2003-2013
Lotus Elise S2 2001-2011
Lotus Exige S2 2004-2011
Mazda MX-5 NA 1989-1998
Mazda RX-7 FD 1992-2002
Mercedes-Benz C-Class W202 1993-2000
Mercedes-Benz C-Class W203 2000-2007
Mercedes-Benz E-Class W210 1995-2002
Mercedes-Benz E-Class W211 2002-2009
Mitsubishi Lancer Evolution IV 1996-1998
Mitsubishi Lancer Evolution V 1998-1999
Mitsubishi Lancer Evolution VI 1999-2001
Mitsubishi Lancer Evolution VII 2001-2003
Mitsubishi Lancer Evolution VIII 2003-2005
Mitsubishi Lancer Evolution IX 2005-2007
Nissan 200SX S13 1989-1993
Nissan 200SX S14 1993-1998
Nissan 200SX S15 1999-2002
Nissan 300ZX Z32 1989-2000
Nissan Skyline R32 1989-1994
Nissan Skyline R33 1993-1998
Nissan Skyline R34 1998-2002
Porsche 911 Carrera 964 1989-1994
Porsche 911 Carrera 993 1993-1998
Porsche 911 Carrera 996 1997-2005
Porsche 911 Carrera 997 2004-2012
Porsche Boxster 986 1996-2004
Porsche Boxster 987 2005-2012
Renault Clio RS 172 1999-2002
Renault Clio RS 182 2002-2005
Renault Megane RS 225 2003-2006
Subaru Impreza WRX 1992-2007
Vauxhall Astra GTE Mk2 1984-1991
Volkswagen Golf GTI Mk3 1991-1998
Volkswagen Golf GTI Mk4 1998-2003
Volkswagen Golf R32 Mk4 2002-2005
Volkswagen Golf R32 Mk5 2005-2008
Volkswagen Golf R32 Mk6 2008-2013
Volkswagen Jetta Mk2 1984-1992
Volkswagen Jetta Mk3 1992-1999
Volkswagen Jetta Mk4 1999-2005
Volkswagen Jetta Mk5 2005-2010
Volkswagen Passat B5 1996-2005

Part Number

- OEM part number: TBV003.20B

Shipping Information

Standard shipping with tracking via Royal Mail or Evri for heavier parts:
- £4.99 per order for standard 2-day delivery
- £5.99 per order for Next Day delivery

Most orders are shipped the same business day if ordered before 2pm. We ship Monday through Friday.

If we unexpectedly run out of stock we may have to order your part which can take up to 1 week. We will be in touch in the rare circumstance that there is a delay to your shipment.

Returns Policy

We want you to be completely happy with your purchase but please do not hesitate to contact us immediately if you have a problem with your order. Please ensure that you consider all the points described on our profile page accessible by clicking our name above the product title.

It is especially important that you take due care to ensure that the part you selected is compatible with your car. If in doubt, we'd prefer that you get in touch via our profile page so we can help you.

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