Just Jap Split Dump Pipe

[beamstas]

Hey Guys

Has anyone on here bought a just jap split dump pipe that acts like a screamer pipe with an internally gated turbo?

http://justjap.com/store/product.php?produ...=276&page=2

The Turbo Im running is a kkr430

Specs:

Compressor side

Inlet pipe 70mm, outlet pipe 50mm 48 trim compressor; inducer 53mm, exducer 76.5mm

Exhaust side

0.58 A/R turbine housing, Turbine wheel outlet 48mm, outer diameter 64.5mm

I realise that it wont give the same roar as a large externally gated turbo but im looking for info/opinions from people who have done this, or people who know how this type of setup sounds .

Cheers

Brad

[boostn0199]

Well from what I ve seen the kkr turbos dont have the same dump flange as stock nissan so wont fit unless you have a custom kkr turbo with the stock turbo rear

[The Dan]

Sounds:

Illegal

Arse

Crap

No hp advantage whatsoever

Sounds like a silly idea

[beamstas]

Cheers Guys

skline01999

Think your right, needed a new dump for the kkr turbo so that would explain the difference..

Elite Racing

Thanks for your opinion.

Are you sure its no hp gain? Less Restriction in the exhaust once the gate opens..

[R31Nismoid]

  Elite Racing said:

Sounds:

Illegal

Arse

Crap

No hp advantage whatsoever

Sounds like a silly idea

Agreed.

[TiTAN]

  beamstas said:

Cheers Guys

skline01999

Think your right, needed a new dump for the kkr turbo so that would explain the difference..

Elite Racing

Thanks for your opinion.

Are you sure its no hp gain? Less Restriction in the exhaust once the gate opens..

This question gets asked a lot, internal wastegates don't sound good with screamers because they never seal properly and are always leaking. Leaving you with a car that sounds like its doing a wet fart all the time.

[OMGGTR]

mates got one on his 34... 1. to loud 2. its fkn crap 3. no backpressure 4. i recon a VW beetle can thrash him lol

[Ultimategtr]

With that style dump, you might start picking up a few homo's.

[Shaun O]

Ugh screamer pipe is so gay -

or

or

- do you really want that sound every time you boost around? Get's f**king annoying after a while, trust me - though I don't know if an internal gate like that will be that loud. I wanna get my external gate screamer pipe plumbed into the exhaust ASAP, it sounds similar to that video if not louder and it f**ks me off.

I can't believe people in the youtube comments say it sounds awesome.

I also lol at how many RB20 and RB25's on youtube get revved past 8k rpm constantly.

[beamstas]

  TiTAN said:

This question gets asked a lot, internal wastegates don't sound good with screamers because they never seal properly and are always leaking. Leaving you with a car that sounds like its doing a wet fart all the time.

I've Heard of people using a plate to seal it and stop the exhaust leak.

Has anyone on here actually done it?

v8tzr

How would back pressure be affected? Its only the gases that aren't needed to spin the turbine.

[beamstas]

  Shaun O said:

Ugh screamer pipe is so gay -

or

do you really want that sound every time you boost around? Get's f**king annoying after a while, trust me - though I don't know if an internal gate like that will be that loud. I wanna get my external gate screamer pipe plumbed into the exhaust ASAP, it sounds similar to that video if not louder and it f**ks me off.

Apparently they are not too loud internally gated.

I know how a screamer pipe sounds.. mate has one on his rb20 180sx.. sounds tough.

[The Dan]

  beamstas said:

Cheers Guys

skline01999

Think your right, needed a new dump for the kkr turbo so that would explain the difference..

Elite Racing

Thanks for your opinion.

Are you sure its no hp gain? Less Restriction in the exhaust once the gate opens..

Absolutely no gain to be had.

If you were running a 1 inch exhaust, yes.....with a 3 inch, no.

[stomper]

  beamstas said:

Apparently they are not too loud internally gated.

I know how a screamer pipe sounds.. mate has one on his rb20 180sx.. sounds tough.

GAY!

perhaps the only screamer you are looking for is when the local constabulalry insert their wee-wee into your poo-poo.

Maybe that will remind you why its a stupid fu*kin idea

[R31Nismoid]

Internally gated screamers are like BMW 318i's

Poor man's screamer

[soturi]

My mate has one on his vl turbo with an rb25det in it...that exact one, it was a leaking piece of crap...sounded the part...but boy did it leak...we put stock dump back on and it cracked along...was a suprise how much of a difference it made. I had one though on my sr20..and it never leaked, but a friend has one that does leak, the overall quality of the item is crap to be honest, but if you get lucky with one that doesn't leak, should be ok...

[bozodos]

just don't be gay lol and either fork out for ext gatet or leave it

[femno]

Its the splitter in the middle that determines the level of seal from the main to the actuator side.

If you contour the splitter well enough to suit the turbo it wont leak much.

They can still sound pretty good, depends on pipe length / size / etc.

I say go for it and if you dont like it take it off. Pretty simple.

[geraus]

i've got a jjr screamer on my highflow turbo, Look i'l be honest with you guys, Just like what others said......

- No HP advantage

- illegal

- LEAKS ON IDLE. JJR ONES LEAK 100% , IF U WANT A GOOD ONE U CAN GET AN EXSPENSIVE ONE FOR LIKE 300 & THEY DONT LEAK.

but but, I love it, sounds crazy!!!!!!!! in the videos thats what mines sounds like! even sounds better with the cat bashed out, more holow... but yeh, i'd personally dont recommend it.

[R31Nismoid]

  Shaun O said:

Ugh screamer pipe is so gay -

or

or

- do you really want that sound every time you boost around? Get's f**king annoying after a while, trust me - though I don't know if an internal gate like that will be that loud. I wanna get my external gate screamer pipe plumbed into the exhaust ASAP, it sounds similar to that video if not louder and it f**ks me off.

I can't believe people in the youtube comments say it sounds awesome.

I also lol at how many RB20 and RB25's on youtube get revved past 8k rpm constantly.

The first one is external, the other two i'm not so sure they are fully external. 2nd one if it's only running 10psi really isn't moving much air so that does affect things.

You can tell the difference between a fully dedicated external gate screamer because the exhaust gas does not go through the turbo like it does on int gated 'screamers', just makes them sound poxy IMO.

List here on my vid - you can hear similar to the first vid.

Manifold design also changes the sound, as does the lenght/cut of the screamer pipe itself

(14 sec-20sec) (27sec-40sec)

I miss my external gate days

[Parag0n]

Screamer Pipes are a wank unless you're building a fully dedicated track / strip car.

Plus it's a major defect in several states which means your car is going to get towed and end up in an impound yard for some fat bastard towie to play with.