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Dump Valves
Dump valves are fitted to the engines of turbo charged cars and sit between the compressor outlet and the throttle body. When transitioning from a boosted state to a closed throttle state (as in between shifts), due to inertia, the turbo continues to pressurize air, but the closed throttle prevents the compressed air from entering the engine. In this case the pressure exceeds the preset spring pressure in the dump valve and the excess pressure is bled off to atmosphere.
Even with a dump valve the compressed air acts as a brake on the turbo (slowing it down), because the pressure on the backside of the turbo is at a higher pressure than on the front side (and the air actually wants to flow through the turbo backwards).

Roar power offer a selection of two types of turbo dump valves, Bailey or Turbo Smart.

Bailey Dump Valves

Bailey Motorsport Dump Valves

"We offer a vast range of Dump Valves and fitting kits for most turbocharged vehicles and a range of alloy fabricated parts, such as header tanks, swirl pots, power steering tanks and much, much more. We are also one of the largest Samco silicone hose distributors in the UK and stock a massive range of complete replacement turbo and coolant kits as well as Universal straight lengths, bends and vacuum hose in a choice of 7 colours."
For your convenience we have made the latest catalogue available as download here

Example Prices

DV24 +FK45 Daihatsu Charade GTti £124.55
DV26 + FK97 Audi A3 1.8 20V Turbo £148.05 l
DV26 + FX97 Audi TT 185/225 £144.10

	E-mail	birmingham@longlife.co.uk
	Phone	0121 643 3320
	Drop in!	Unit 2 Shaw's Passage Birmingham B5 5JG