Screamer Dump Pipe

[polishboi]

Hey guys ive been looking around for a Screamer dump pipe for a Rb20 its got the standard turbo t3 type was wondering if any one knows where the is some flouting around and what there worth cheers

[R31Nismoid]

Just have a split-dump made, and dont plumb the wastegate pipe in... and thats that.

Although, its going to sound exceptionally poor with a small turbo/internal gate.

It will also most likely leak at idle aswell, so ye. Go for your life, just dont be disappointed when its not what you expect

[STR8E180]

if ur going to use it on a internal gate turbo its going to sound like a big exhaust leak

[LBR33]

if ur going to use it on a internal gate turbo its going to sound like a big exhaust leak

It will have a small exhaust leak sound at idle but when the car comes onto boost........WOW its REALLY LOUD.

Greenline have nightpager screamer pipes listed

[VB-]

mate of mine got one from batmbl i think off here, no leak at idle, no exhaust leak sound at all till it hit boost and it just went nuts

[4drftn]

hows a screamer pipe different to a dump pipe?

[BelGarion]

it dumps your wastegate exhaust gas straight out into the atmosphere rather than running it back into your exhaust system after the turbo. its loud.

its also evidently the new bov as everyones getting them.

[R34NRG]

i properly made one will NOT leak. i got a few contacts if u want. if ur in the SE subs i could even show u.

pm me if u want some info

[leg46y]

do screamer pipes on ext wastgates have any effect on performance?

[adam-__-]

I don't think so, but it will have an effect on your wallet if you get caught by the epa.

[R34NRG]

I don't think so, but it will have an effect on your wallet if you get caught by the epa.

correct me if im wrong but dont screamer pipes spool quicker and hold boost better

[R31Nismoid]

If the exhaust/wastegate is designed well and works (flows), a screamer offers nothing but noise. No performance gain what so ever

[R34NRG]

If the exhaust/wastegate is designed well and works (flows), a screamer offers nothing but noise. No performance gain what so ever

so ur saying a almost instant free flowing wastegate will produce no advantages? i get this by basicly comparing it to a 1inch pipe that ports back into the exhaust. there defiently would be restrictions there???

i woulda thought it would at least defiantly hold boost better.

again correct me if im wrong.....

[4drftn]

so... how is a screamer dump pipe different to a dump pipe??? i take it a dump pipe pushes wastegate gases through the exhaust system and the screamer pipe will blow it directly into atmosphere, which would make more power and noise but would be illegal... is that right

[polishboi]

ive got a few mates with screamer dump pies the worst part about them is the exhaust leak on idle once you get going the leak is hardly noticable but when the internal gate open the sound is quality!

[eugen_syd]

I have an external wastegate HKS. I had a screamer pipe and sounded really loud. I felt like I am looking for trouble plus...was all noise, was so loud you had to back off the accelerator after 6psi boost. I had made a new downpipe and plumed in. Noise gone and car runs much better.

Now I go close to 20 psi sometimes(instance). I think is cool to have performance no noise. If you look for noise take your exhaust off...will be same thing!!!! I don't think you gain any power. I lost nothing pluming in!

Just a thought, you can ignore it!!!

Eug.

[R31Nismoid]

so ur saying a almost instant free flowing wastegate will produce no advantages? i get this by basicly comparing it to a 1inch pipe that ports back into the exhaust. there defiently would be restrictions there???

i woulda thought it would at least defiantly hold boost better.

again correct me if im wrong.....

As i said before.

If the exhaust is free flowing enough, then it wont make a difference.

Having a dump (with a int gate feed/split dump) or screamer is no different really.

The air is physically still coming out of the same wastegate hole size, that doesnt change. So i cant see how its going to affect boost pressure when the gate size doesnt change, not the air passing by it.

[eugen_syd]

The noise was so loud..had to back off or I feel like everybody looks at me........makes sense?

[BAMR33]

The noise was so loud..had to back off or I feel like everybody looks at me........makes sense?

No, I think you should consider restructuring your sentence.

[saliya]

do screamer pipes on ext wastgates have any effect on performance?

Definitely. The gas going out the gate doesn't go through the exhaust -

more "space" for the gas spinning the turbo (basically, any time the

gate is open there is less backpressure than there would be with a

plumb-back).

Also, the bled gas is only pushing against atmospheric pressure, not

what's already in the exhaust (basically, a given gate size can bleed more

gas; or same gas at lower duty cycle; or smaller gate can handle same

bleed requirement to maintain boost).

correct me if im wrong but dont screamer pipes spool quicker and hold boost better

won't spool quicker (the gate has no effect till it's opened).

Might hold boost better where the gate is too small - a plumbed-back gate will be

able to bleed off less gas than the same size gate opened to atmosphere. Better

to get the right-size gate.

Regards,

Saliya

Edited September 23, 2007 by saliya