Dump Pipes

[QWAK]

Just wanted to find out some information about the different dump pipes out there. You can spend anywhere from $250 to $800 bucks on them. Is there much of an advantage in spending extra money on the dump pipe powerwise also?

Any help much appreciated,

Dick

[knore]

Having a seperate wastegate pipe helps increase flow which makes it easier for the turbo to flow more air and make more power

a proper split dump pipe will seperate the wastegate gases from the normal turbine exhaust gas and join back in 30cm+ down the pipe which eliminates alot of the turbulence involved when both are trying to enter the same piece of 3" piping

not many places make proper split dumps, CES are the best as far as i know

oh and a proper split dump pipe is actually the dump and frontpipe as one

[croat]

I got a CES split dump pipe. They work a treat!

[QWAK]

cheers guys, the CES pipe was the one i was looking at!

Love ya work

[JaseR33]

Have you guys with dumps noticed any loss of initial response before proper tuning?

Cheers

[redline2003]

It surprises me VERY much that many japanese tuning shops STILL dont make proper split dump(and front) pipes, I would have expected alot more, given their so called research and development, I used to have alot of faith in japanese products. Good to see an Australian company can make a superior product for a turbo car....

[Ronin 09]

It surprises me VERY much that  many japanese tuning shops STILL dont make proper split dump(and front) pipes, I would have expected alot more, given their so called research and development, I used to have alot of faith in japanese products. Good to see an Australian company can make a superior product for a turbo car....

and your evidence of this is?

what do you consider "proper split dump(and front) pipes"?

seems like a throwaway blanket statement...

[Guilty]

how much does an CES dump pipe cost?

[redline2003]

CES dump pipe in my opinion(which isnt professional in anyway) because:

- the wastegate pipe is longer than 20cm, which reduces turbulence in the gases

- the wastegate pipe enters in smoothly when it reconnects, flowing with the exhaust gas, rather then clashing with it. All these 'seem' to make boost come on quicker, better response etc.

The jap dump/fronts ive seen are either:

-single dump(no split)

-have a seperate pipe for the wastegate but is much too short

-the wastegate pipe connects at an almost right angle

Like i said, im no mechanic or engineer, i would love to believe that jap brands are better for jap cars, i dont mind paying the extra for a quality product.

[Ronin 09]

you mean like this?

[redline2003]

Lol nice looking parts there, what brand are they, i assume they are for the GTR? I take back my statement, but was refering to the HKS etc split dump for SR20's.

[Ronin 09]

They're trust pipes for GTR

[redline2003]

Do they make similar stuff for SR's and RB25's?

[someonestolecc]

and more importantly does anyone make the trust copies for SRs and RBs ?

[mokompri]

and more importantly does anyone make the trust copies for SRs and RBs ?

in short for SR's, no... if you want the best, either go for CES or Trust dump for SR's imo. the HKS split dump doesnt merge the wastegate and turbine gasses very well, they come in at too much of an angle causing turbulance.

the Trust dump is the *ONLY* dump pipe which merges the gasses *parallel* to each other, on the outside it looks like a large single mouth design, but on the inside it has internal walls which split the gasses till further down. all "copies" of the trust dump look the same (kinda) on the outside, like a large single mouth dump, but dont have the internal spliting.

the CES is self explanatory, it splits the gasses until much further down, eliminating much of the problem the HKS has with early merging and tight angle of entry...

my pick, would be the trust over the CES, because of cost factor, i find the CES prices to be ridicoulous especially considering how many problems they had with cracking...

[Coupe-This]

I am in need of a new dump pipe, where can i get one of these trust or ces dump pipes?

cheers