Anyone fitted screamer pipe

[ZacDudleyVRS]

Hi I'm just wondering if anyone have fitted a screamer pipe to their octavia vrs ?

[RobClubley]

Aren't they only applicable with atmospheric DV?

Illegal in NZ anyway.

[ZacDudleyVRS]

I don't get what you mean buddy

[Miz]

I don't think it's possible.

[ZacDudleyVRS]

Sure you can have it come of the down pipe?

[Llanigraham]

Hi I'm just wondering if anyone have fitted a screamer pipe to their octavia vrs ?

 

That'll sound chavtastic!!

[Miz]

Screamer pipe

From Wikipedia, the free encyclopedia

  (Redirected from Screamer Pipe)

A screamer pipe is a type of exhaust configuration fitted to some automotive turbocharged petrol engines with an external wastegate set-up, known for its loud noise.

[ZacDudleyVRS]

Each to their own buddy

Mid I give the exhaust place a ring tomorrow

[Miz]

Let us know how you get on.

[ZacDudleyVRS]

I will do bud

[stu_mcl]

Depends on turbo setup, with an external wastegate you can. With some internal wastegateed turbos you can have whats called a divorced downpipe where the downpipe splits the wastegate gasses from the rest of the exhaust gasses

Il try and find some pics

Divorced elbow vs normal(albeit an aftermarket) elbow

Edited 22 January, 2015 by stu_mcl

[ZacDudleyVRS]

How do they work then buddy ?

[B33fy]

Turbo's have a built in wastegate which opens to control the turbine speed and prevent overboosting the engine when spooled up. They open to keep the turbo at its predefined maximum boost pressure and are controlled by a valve and the ecu. It works by bleeding off excessive exhaust pressure via a gate rather than running through the turbine Usually the excessive exhaust goes through the waste gate and into the exhaust. A screamer pipe is a short pipe from the waste gate directly venting to atmosphere rather than connecting through the exhaust system.

 

A dump valve or BOV is a totally separate system. When you take your foot off the throttle on a turbo engine, the engine slows down and doesn't use the air which is already pressurised by the turbo in the inlet manifold. This causes back pressure which stops the turbo from spinning. The dump valve relieves that pressure stopping the turbo from stalling thus spinning up quickly when you accelerate eg when changing gear. The aftermarket BOV vents to air hence the toooshhing sound whereas oem kit recircs back to the inlet pre turbo.

 

There's quite a bit more involved technically especially the boost control systems and effects on fuelling though that's esentially it. Hope it makes sense.

[ZacDudleyVRS]

Thanks so I'm better of staying away from the screamer pipe then just asking for problems

I don't no if you can help to I'm getting a new air intake tip can I put it on or have I got to blank things off ?

[stu_mcl]

screamer pipe on my ST205 GT4:

Best video i can think off that demonstrates screamer pipe noises(the woosh you can hear once full boost is achieved in the video)

Never really heard of them being fitted to anything other than jap cars tbh

[Aspman]

[ZacDudleyVRS]

I love the sound of them like :'( need one