| Author | Topic |
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Location:
Syd
Registered:
October 2004
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Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 11:35
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hey,
was just talkin to some1 about doing exhaust system on my car and he started mentioning stuff bout a screamer pipe, and dump pipes, i know wat dump pipes do n stuff, but wat the fudge is a screamer pipe????
if this has been discussed previously plz show us, coz i wasn't able to search it... also which is better and cheaper... i know those too don't probs go together but ye...
cheers
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Location:
brisbane
Registered:
October 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 11:42
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its an external wastegate exhaust pipe, so if you have an external wastegate (illegal on street) because your turbo is so big it cant house an internal wastegate, then the external wastegate doesnt go through the turbo > turbo dump pipe > exhaust like usual, it goes through the screamer pipe instead.
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I supported Toymods
Location:
Perth, WA
Registered:
May 2003
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 11:48
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and then u get the people that weld a piece of metal between the rear turbine and the internal gate
and run a screamer off an internally gated turbo
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Location:
Syd
Registered:
October 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 11:48
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so (trying not to sound to stupid)
wat do i have lolll...
and which one do i need to get?
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I supported Toymods
Location:
Perth, WA
Registered:
May 2003
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 11:49
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screamer is really loud when it vents
good for gating old people walking home from lawn bowls 
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Location:
Gold Coast
Registered:
June 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 12:32
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If you have a factory turbo it would have an internal gate. So the guy would be getting your internal gate to vent bypassed exhaust out into the atmosphere instead of back into the main exhaust. The sound pretty cool but there illegal for street use.
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 12:37
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| styler wrote on Thu, 02 June 2005 21:42 |
its an external wastegate exhaust pipe, so if you have an external wastegate (illegal on street) because your turbo is so big it cant house an internal wastegate, then the external wastegate doesnt go through the turbo > turbo dump pipe > exhaust like usual, it goes through the screamer pipe instead.
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why is an external gate illegal?
some cars came out stock with them
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Location:
Gold Coast
Registered:
June 2004
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Location:
Perth
Registered:
June 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 12:58
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| tyottsoarer wrote on Thu, 02 June 2005 20:47 |
An external gate is illegal because it vents exhaust gas into the atmosphere that hasn't passed through the catalytic converter. If it comes on a factory car I think you'd find that it would be plumbed back into the exhaust, so the exhaust gas bypasses the whole turbo exhaust housing. The term "external gate" is used because the gate is external to the turbo charger unit. Correct me if I'm wrong.
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External wastegates are not illegal.
They are used because most internal wastegates are too small to flow a lot of exhaust gas in a higher performance application.
It is illegal to not plumb a wastegate back into the exhaust system (screamer pipe).
As AE95 said, you can make a screamer pipe from both an internally or externally gated turbo setup.
The term 'external gate' has nothing to do with weather or not a wastegate is plumbed back into the exhaust pipe....
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Location:
Gold Coast
Registered:
June 2004
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 13:07
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which has nothing at all to do with the wastegate
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Location:
Brisbane
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 13:11
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A lot of confusion here. The term "external wastegate" simply means the wastegate is separate from the turbo, as opposed to most (all?) OEM setups which have the wastegate integrated into the exhaust housing of the turbo (aka "internal wastegate"). In most cases external wastegates are plumbed back into the exhaust after the dump pipe, and there is nothing illegal about this at all.
There are performance benefits in dumping the external wastegate directly to atmosphere via a so-called "screamer pipe", but as mentioned this is highly illegal and fscking loud.
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 13:13
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mine isnt very loud really
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Location:
Montrose, VIC
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 15:32
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Aye... They do vary - some I've heard have been pretty tame, although I have seen one on a fairly highly strung rotor that gave the eardrums a pretty tight workout!
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Location:
Central Coast, NSW
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 22:47
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My mate had one on his skyline.... mad e a whole lot of noise when he took off next to me but didn't really seem to go much faster
Dan
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Location:
south east - melbourne
Registered:
March 2004
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I Supported Toymods
Location:
Lwr Templestowe, Melbourne
Registered:
August 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 23:06
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| indian wrote on Fri, 03 June 2005 08:59 |
i think the 1g-gte engine will not have problems as they are quiet from stock anyways , lolllllll
screamer pipe , external wategate in a nut shell
they both do the same job , but look very different
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External gate is an externale gate. Whether the pipe coming off the external gate vents into the atmosphere or back into the exhaust piping deems it a screamer or not.
And I gotta say it should be illegal. Just from the noise factor alone. Turbo + no exhaust is bloody loud. I can imagine that a screamer pipe would be the same.
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Location:
south east - melbourne
Registered:
March 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 23:09
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| Yian wrote on Fri, 03 June 2005 09:06 |
| indian wrote on Fri, 03 June 2005 08:59 |
i think the 1g-gte engine will not have problems as they are quiet from stock anyways , lolllllll
screamer pipe , external wategate in a nut shell
they both do the same job , but look very different
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External gate is an externale gate. Whether the pipe coming off the external gate vents into the atmosphere or back into the exhaust piping deems it a screamer or not.
And I gotta say it should be illegal. Just from the noise factor alone. Turbo + no exhaust is bloody loud. I can imagine that a screamer pipe would be the same.
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yeah true , but most aftermarket external wastegates dont plumback into the exhaust , they just vent into atmo
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 23:11
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they vent them to where ever you make them vent
lots of comments here with no experience
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Location:
Syd
Registered:
October 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 23:11
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hmmm... must of been an interesting topic...
since i didnt understand alot of it loll... i guess u's all have good points 
umm, i think illl just get a dump pipe, appears to be a safer option with the law n stuff...
cheers
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I Supported Toymods
Location:
Lwr Templestowe, Melbourne
Registered:
August 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 23:13
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| indian wrote on Fri, 03 June 2005 09:09 |
yeah true , but most aftermarket external wastegates dont plumback into the exhaust , they just vent into atmo
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A decent exhaust shop should be able to make up a pipe back into your exhaust.
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Location:
Brisbane
Registered:
April 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 23:20
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| EMP-2TG wrote on Fri, 03 June 2005 08:41 |
they vent them to where ever you make them vent
lots of comments here with no experience
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I would have to agree where are these facts comming from they sound like people have been reading to much fast fours. External waste gates don't vent to atmosphere usless you make them porshec use a external waste gate on some of there cars these don't vent to atmosphere.
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Location:
Perth
Registered:
October 2003
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 23:37
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There is so much crap in this thread, so as they say a picture speaks 1000 words.
1. External Wastegate with Outlet Pipe back to exhaust system (but looking a little dodgy)
2. External Wastegate with outlet pipe to atmosphere (screamer pipe)
As mentioned by some of the knowledgeable people above an internal wastegate can also be "screamed" by simply dividing the exhaust flow.
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I Supported Toymods
Location:
Lwr Templestowe, Melbourne
Registered:
August 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 23:56
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| Skip wrote on Fri, 03 June 2005 09:37 |
There is so much crap in this thread
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I hope I wasn't spouting crap.
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I supported Toymods
Location:
Epping, Sydney
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 23:58
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| indian wrote on Fri, 03 June 2005 09:09 |
yeah true , but most aftermarket external wastegates dont plumback into the exhaust , they just vent into atmo
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what crap is that coming out of your mouth? most external wastegates, on street cars, vent to the exhaust pipe so the owners don't get reamed by the epa/cops
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 23:59
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| Yian wrote on Fri, 03 June 2005 07:56 |
| Skip wrote on Fri, 03 June 2005 09:37 |
There is so much crap in this thread
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I hope I wasn't spouting crap.
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No 
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Location:
Perth
Registered:
October 2003
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Re: Dump Pipe -- Screamer Pipe wtf?
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Thu, 02 June 2005 23:59
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| Yian wrote on Fri, 03 June 2005 07:56 |
| Skip wrote on Fri, 03 June 2005 09:37 |
There is so much crap in this thread
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I hope I wasn't spouting crap.
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No not at all
You didnt say an external wastegate and a screamer pipe do the same job
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Location:
Adelaide
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 00:20
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Skip, your second pic where the ext gate goes to atm isn't too clear. It looks like it just goes into a bit of flex pipe and dissappears from view. Unless I'm mistaken...
Apparently sigma gsr comes standard with an external wastegate
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Location:
Perth
Registered:
October 2003
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 01:40
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Yeah I know, best pic I could find quickly.
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I supported Toymods
Location:
Brisbane
Registered:
September 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 02:14
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| opasan wrote on Fri, 03 June 2005 09:11 |
hmmm... must of been an interesting topic...
since i didnt understand alot of it loll... i guess u's all have good points
umm, i think illl just get a dump pipe, appears to be a safer option with the law n stuff...
cheers
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You'll deffinatly need a dump pipe mate, that comes off the exaust housing and runs to the exhaust. All a screamer pipe is, is a short length of pipe that runs from the external wastegate (you don't have one if you've got a stock CT26) straight to the atmosphere.
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Location:
Brisbane
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 03:02
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I wonder how many times we can answer the same question in a single thread?
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Location:
brisbane
Registered:
October 2004
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Location:
south east - melbourne
Registered:
March 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 03:14
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| draven wrote on Fri, 03 June 2005 09:58 |
| indian wrote on Fri, 03 June 2005 09:09 |
yeah true , but most aftermarket external wastegates dont plumback into the exhaust , they just vent into atmo
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what crap is that coming out of your mouth? most external wastegates, on street cars, vent to the exhaust pipe so the owners don't get reamed by the epa/cops
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yes very true but i was reffering to that they dont come with the equipment to plum back into the exhaust, ITS UP TO THE OWNER TO DO THAT OR LEAVE IT VENTED INTO ATMO thats what i was trying to say
basically in a nutshell the atmo venting part of the pipe from a external wastegate (or an internal wategate modified) is what is called a screamer pipe
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Location:
sunny coast, qld
Registered:
October 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 05:52
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| Norbie wrote on Fri, 03 June 2005 13:02 |
I wonder how many times we can answer the same question in a single thread?
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A screamer pipe is a pipe that comes out of the wastegate and vents to atmosphere.
A dump pipe is the part of the exhaust that comes off the turbine housing of the turbo.
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Location:
Adelaide, SA
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 06:29
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| Norbie wrote on Thu, 02 June 2005 22:41 |
A lot of confusion here. The term "external wastegate" simply means the wastegate is separate from the turbo, as opposed to most (all?) OEM setups which have the wastegate integrated into the exhaust housing of the turbo (aka "internal wastegate").
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The worlds most elite and stylish turbo car had an external wastegate............. How dare you forget the Sigma Turbo Norbie!!
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 06:36
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here is a pic of my lil screamer
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I Supported Toymods
Location:
Lwr Templestowe, Melbourne
Registered:
August 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 06:38
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Damn dude. Wheres the engine? All I see is a turbo
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 07:23
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it may be big but it does the job
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Location:
Perth
Registered:
October 2003
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 08:30
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Is your roof comfortable?
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 08:36
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yeah triple layers 
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 08:44
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Man I read a few posts in this thread and I must say there is a lot of gheyness here
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 08:45
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true true
i did the test tho and im only 20% gay
even i am having trouble getting my head around such a low figure
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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 08:47
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Theres a test for it?
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Fri, 03 June 2005 08:50
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the test
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Location:
Syd
Registered:
October 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Sat, 04 June 2005 00:15
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thanks peeack for giving me the most simplest answer...
but i think the exhaust has to wait.... i cracked my bov... who d fudge can ccrack this... and its been causing all my problems.. from my previous posts with boost related problems n all, i changed everything... and it was a lil crack near the bov and it just became bigger and bigger, now if i push on it i i crack it all d way off....
Buy new one... or weld old one????
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Location:
Perth
Registered:
October 2003
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Re: Dump Pipe -- Screamer Pipe wtf?
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Sat, 04 June 2005 03:12
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Only inspection will tell if it should be rewelded, I assume the weld cracked?
Anyhow you best take a photo and post it here if you want toymoders advice!
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I Supported Toymods
Location:
Lwr Templestowe, Melbourne
Registered:
August 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Sat, 04 June 2005 04:24
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| Skip wrote on Sat, 04 June 2005 13:12 |
I assume the weld cracked?
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I'm assuming this too. If it is, it'd be cheaper to just replace the cracked piping and get them to weld on another adaptor plate thingo and attach the BOV back on.
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Location:
Syd
Registered:
October 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Sat, 04 June 2005 23:25
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the bov cracked where you screw it in, not the actual welding pipe n ye...
umm, maybe it was me or something, but the bov seemed to be plastic??/ heard of this before??? its an actual hks ssq bov and wen i got the shits and cracked it all the way off, it looked plastic, and was lite as a feather....
fixed the problem, with this thing called, quicksteel<-- best thing ever invented $10.50 at peps and it works a treat... have tried and tested it and works so far... only took an hour to dry aswell.... will take a photo after i get back from soccer
cheers...
ohh ye exhaust back on cards...
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Location:
northern beaches
Registered:
August 2002
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Location:
northern beaches
Registered:
August 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Sun, 05 June 2005 11:50
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alright then can somone inform me of the benefits of seperating you r internaly gated waste-gate gas from the other gas going through the turbo? and then merge them later down the pipe?
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Location:
Brisbane
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Sun, 05 June 2005 11:55
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The idea is to minimise turbulence after the exhaust turbine, which improves flow and response.
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I supported Toymods
Location:
Perth, WA
Registered:
May 2003
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Re: Dump Pipe -- Screamer Pipe wtf?
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Sun, 05 June 2005 20:07
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emp-2tg
what ext wastegate is that your using? is it one of those china ones?
if so how good/reliable are they
thanks
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Sun, 05 June 2005 23:52
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yeap its an ebay jobbie, as is the turbo
works fine, not had any trouble with it so far
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Location:
Brisbane
Registered:
February 2003
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Re: Dump Pipe -- Screamer Pipe wtf?
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Mon, 06 June 2005 00:45
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Reading this thread hurts
Just to add some confusion here is an internally gated turbo with a seperate wastegate pipe, that is plumbed back in
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Location:
Brisbane
Registered:
March 2005
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Re: Dump Pipe -- Screamer Pipe wtf?
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Mon, 06 June 2005 03:40
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iv read so much ive gone crossed eyed...diggin the atmosphere ventilated screamer pipe though. who cares if its illegal
DOWN WITH THE SYSTEM!
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Location:
northern beaches
Registered:
August 2002
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Location:
brisbane
Registered:
December 2004
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Re: Dump Pipe -- Screamer Pipe wtf?
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Mon, 06 June 2005 08:09
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ill post it again cauz im bored lol heres a pic of my "double dump" and screamer but mine can be "turned on and turned off" lol
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Location:
northern beaches
Registered:
August 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Mon, 06 June 2005 10:24
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how come there is no weld around the flange of the on/off 'valve'? (top photo).
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Location:
Carlingford, Sydney
Registered:
May 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Mon, 06 June 2005 10:26
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it is welded from the inside
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Location:
northern beaches
Registered:
August 2002
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Re: Dump Pipe -- Screamer Pipe wtf?
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Mon, 06 June 2005 10:31
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any advantage in doing that? or just looks neater?
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