wastegate

[ImPrOvIsE]

Should be getting my exhaust soon and was wondering if it is necessary for wastegate integration as part of the system.

If there is no wastegate integration is there a chance of blowing the turbo up and has the stock exhaust got this integration.

Dont really know what Im talking about so please let me know.

Andrew

[GTS-t VSPEC]

Andrew,

No you don't need a separate pipe for the internal wastegate turbo's, it is beneficial but not necessary. It won't hurt the turbo if you don't have it:D

See'ya:burnout:

[SHUTO-BOY]

ask ur exhaust guy about a screamer pipe

[ImPrOvIsE]

what are the benefits of having this extra pipe?

[APA]

if ur like aidwin and me and want a screamer pipe just expect a noise like wahhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh

hhhhhh heheehe sounds awesome!

adrian

[SHUTO-BOY]

if u got a stock turbo,it wont make that sound (unless u pump it up to 1.2 bar or something)

-improvise, if u separate the wastegate ,it makes the flow efficient somewat, im not that sure so ask ur exhaust guy

[APA]

main reason mostly why guys get seprated wastegate pipe, is to stop turbulence, but if the pipe rejoins too soon it stillmay casue turbulence apparently so there is an art to it

adrian

[ImPrOvIsE]

so let me get this right. The performance gains from a new exhaust system will still be very similar with or without a wastegate pipe. But with a wastegate pipe it improves............ (finish sentance please)

and what do you mean by turbulence?

[PSIKO]

But with a wastegate pipe it improves............ the flow and reduces turbulence just after the turbine

turbulence i s the disruption of air ... if you have turbulence, then the air flow is not linear, and if the air isn't all going one way at the same time, you'll have a reduction in the flow and and increase in restriction

[ImPrOvIsE]

Thanks PSIKO

[Guest wasted]

ImPrOvIsE

get split type dump pipe with external venting of wastegate, seperate pipe that dump onto ground, never go back u junkie.

wasted !!

[GTS-t VSPEC]

He has an internal wastgate, so unless he welds it closed then external gating is not an option.

See'ya:burnout:

[red17]

I recently got my dump pipe done and its been a fantastic improvement. I went with a single pipe with a really wide opening at the top. Having had a look at the standard pipe its obvious how much better this is. The stock one on the 32 has a cast iron flat section just about blocking the wastegate area off... its horrible.

A larger single pipe is probably enough for most people. And theres little guarantee it will be better if you buy one with a separate wastegate pipe. This is because it may rejoin too early or too late causing similar turbulence issues within the system.

You'll see improvements either way, however the difference between the 2 styles of dump pipes probably cant be felt on an arse dyno (only a real one).

Red17

[Mr Squiggle]

I'm geting my exhaust done next week. I pikd up a exhaust housing gasket, $20 and have since taken to my exhaust guy. He is going to weld up a new plate and incorporate in a seperate wastegate dump.

the dump off the back of the turbo will be a rapid increase to 3', the wastegate pipe will be 1"1/2. The exhaust guy has recently done something similar to another GTST, but the wastegate pipe entered the system down near the cat convertor.

My question is - "is this TOO far back? I know the further back the better. But we are talkin about 1 - 1.5m here".

"should I also thermal wrap any of the dump pipe???"

btw full 3" zorst turbs bak with hi flo cat and rear muffy etc etc..

tks.....

[GTS-t VSPEC]

Mr Squiggle,

I'd think the further back the better, that way the turbulence will not have as much effect on the exhaust gases near the turbo.

See'ya:burnout:

[macka]

opposed to GTS-t VSPECs whos comes in at a right agle

Whether apart of the normal exhaust or a seperate screamer pipe, that joins back into the main exhaust at any section, or not at all.. wont hurt your turbo..

Id say the ultimate is an exhaust dump, one pipe with a secondary wastegate screamer which never enters back into the main pipe. Thats my next goal when the exhaust comes off..again.

[InExtremis]

I just have a quick question, if you bought a nice exhaust, then later down the track did an engine swap, say from an RB20 to an RB25 in an R32, would you have to buy a new exhaust?

Just had me wondering for a while tis all.

[macka]

Custom dump pipe from turbo to front pipe yeah...