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Green Classic & Vintage Spares

Adjustable Dump Valve Single Piston (TBV001.25A)

Adjustable Dump Valve Single Piston (TBV001.25A)

Regular price £79.55
Regular price £79.55 Sale price £79.55
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New
TBV001.25A Misc Turbo Dump Valves & Boost Adjusters
MOTORSPORT ADJUSTABLE DUMP VALVE SINGLE PISTON ATMOSPHERIC (Silver)
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:- 25mm

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 DB9 2004-2016
Austin Mini Cooper 1968-1996
Austin-Healey 3000 1959-1967
Bentley Continental GT 2003-2013
BMW M3 E46 2000-2006
Ferrari 458 Italia 2009-2015
Fiat 500 Abarth 2008-2019
Ford Fiesta ST 2013-2019
Jaguar XKR 2007-2014
Lamborghini Gallardo 2003-2014
Lotus Exige S 2006-2011
McLaren 720S 2017-2020
Mercedes-Benz C63 AMG 2008-2014
MG MGB GT 1965-1980
Mini Cooper S 2002-2006
Morgan Plus 8 1968-2004
Porsche 911 Turbo 2000-2005
Rolls-Royce Phantom 2003-2017
Triumph TR6 1969-1976
Volkswagen Golf GTI 2004-2009

Part Number

- OEM part number: TBV001.25A
- Equivalent OEM part number: N/A

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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