can i put somthening like that to my corsa? Did that change somthening whit performance of my car?
2007-03-10 05:49:47 · 12 answers · asked by michal l 1 in Cars & Transportation ➔ Maintenance & Repairs
Dump valves are fitted to the engines of (usually older) turbo charged cars and sit between the turbo 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).
A blowoff valve is a more elegant solution to this problem by allowing the turbo to "freewheel" when the throttle is closed (equalizing the pressure on both sides of the turbo). Unlike a dump valve a blowoff valve can be used at multiple boost settings without reconfiguration.
Blowoff valves are sometimes incorrectly called dump valves because they serve a similar function, however they are very different solutions to the same problem
2007-03-10 06:10:59 · answer #1 · answered by jsm2779 3 · 1⤊ 0⤋
Dump valves are fitted to the engines of (usually older) turbo charged cars and sit between the turbo 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.
2007-03-10 05:53:16 · answer #2 · answered by Mr. KnowItAll 7 · 1⤊ 0⤋
Cant put it much better than Mr.knowitall, only to add that the dump valves main purpose is to stop turbo stall when you lift off due to, to much pressure between the throttle flap and turbo which will cause lag(waiting for the turbo to wind up again) when you press the throttle again, makes a turbo car much more fun to drive...
2007-03-10 06:15:46 · answer #3 · answered by endac 3 · 0⤊ 0⤋
It is a pressure relief valve for in case your turbo or supercharger causes a backfire. It helps by venting explosive gasses and 'prevents' blown seals. They do nothing to raise performance or power. They are just a safety device and is not needed on normal non-charged cars.
2007-03-10 06:27:12 · answer #4 · answered by Anonymous · 0⤊ 0⤋
you need a turbo for on eof these, it is basically a valve that forces extra air and fuel into the engine, the noise you hear is excess air escaping. You would need to add a turbo, and to be honest on a corsa it's not worth it, you night as well just buy a car with one already, because good luck getting insurance on a car with that mod!
2007-03-10 05:54:11 · answer #5 · answered by CHARISMA 5 · 1⤊ 2⤋
A dump valve is used with a turbocharger, basically it is to dump excess pressure so things don't go bang! No use at all on its own.
2007-03-10 05:53:07 · answer #6 · answered by champer 7 · 1⤊ 0⤋
A dump valve is a safety valve ,it is called a pressure release valve .
2007-03-10 06:09:09 · answer #7 · answered by Mick 4 · 0⤊ 0⤋
dump valves are on turbos i think they get rid of excess pressure
from turbo but could be wrong lets see what others say
2007-03-10 05:57:10 · answer #8 · answered by harry b 2 · 0⤊ 0⤋
Dump valve or waste gate? waste valve [gate] takes excess pressure from turbocharger...Dump valve opens exhaust before it reaches muffler..
2007-03-10 05:56:25 · answer #9 · answered by Anonymous · 1⤊ 0⤋
i have no idea but a Dump sounds like a good description of what I'm going to do now!
2007-03-10 05:53:07 · answer #10 · answered by Anonymous · 1⤊ 1⤋