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Dump pipe for GU 4.2 Turbo
Posted: Wed May 17, 2006 9:43 am
by Buckshot
I will be getting the exhaust done on my Gu in the next few weeks.I have heard the dump pipe on the 4.2 Turbo is very retsrictive.Where does the dump pipe restrict?Is it on the join from the turbo,or does the pipe narrow down after the join?
The reason I am asking is that I was going to use the join from the old exhaust and weld the 3 inch to it.
Does the join allow optimum flow?
Thanks
Re: Dump pipe for GU 4.2 Turbo
Posted: Wed May 17, 2006 1:03 pm
by morkz
Buckshot wrote:I will be getting the exhaust done on my Gu in the next few weeks.I have heard the dump pipe on the 4.2 Turbo is very retsrictive.Where does the dump pipe restrict?Is it on the join from the turbo,or does the pipe narrow down after the join?
The reason I am asking is that I was going to use the join from the old exhaust and weld the 3 inch to it.
Does the join allow optimum flow?
Thanks
Hey mate,
Its actually the casting off the back off the turbo which is resticivite, you can weld it on but with changing to a more flowwing dump thats where you notice the difference in the exhause just changing the back part will only change the note of the vehicle.
Posted: Wed May 17, 2006 2:03 pm
by Buckshot
Is the dump pipe pretty standard part I can buy from a muffler place in 3 inch?
cheers
Posted: Wed May 17, 2006 3:50 pm
by morkz
Buckshot wrote:Is the dump pipe pretty standard part I can buy from a muffler place in 3 inch?
cheers
I believe you can why exhaust guy just ordered one in and made the rest of the pipe himself. All you need is the part just off the back of the turbo and goes into 3".
Posted: Wed May 17, 2006 4:12 pm
by bogged
Beaudesert exhausts do a kit that comes with it - complete.
you could ask if they do the partial one.
Posted: Wed May 17, 2006 5:28 pm
by Buckshot
cheers fellas,just fired off an email to Beaudesert.
Posted: Wed May 17, 2006 6:12 pm
by ACH
MTQ sell dump pipes only.
Posted: Wed May 17, 2006 6:16 pm
by mr Z
cost of dump pipe should be around 180-200 bucks
Posted: Wed May 17, 2006 11:59 pm
by bogged
Buckshot wrote:cheers fellas,just fired off an email to Beaudesert.
let me know what you find out.
Posted: Thu May 18, 2006 3:39 pm
by Buckshot
[/quote]
let me know what you find out.[/quote]
No wuzzas.will do
Hey I'm not going to bother with a muffler on this setup.Anyone got an idea how loud she'll be?
Posted: Thu May 18, 2006 3:54 pm
by morkz
Buckshot wrote:
let me know what you find out.[/quote]
No wuzzas.will do
Hey I'm not going to bother with a muffler on this setup.Anyone got an idea how loud she'll be?[/quote]
its not that loud doesnt drone much
i have no mufflers in my 04 gu does whistle around town which is good and doesnt attract the boys in blue unless you give it some stick
Dump pipe
Posted: Thu May 18, 2006 5:36 pm
by Tailspin
I run a 3" Mandrel bent out of S/S does starts to bellow a little in 3rd under a bit of load, But other than that not to loud at all. Just a whistle.
Dump pipe
Posted: Thu May 18, 2006 6:00 pm
by Tailspin
I run a 3" Mandrel bent out of S/S does starts to bellow a little in 3rd under a bit of load, But other than that not to loud at all. Just a whistle.
Posted: Thu May 18, 2006 6:59 pm
by rick130
the MTQ one is cast like the OE one, I think all the others are fabricated.
IIRC, the MTQ one is $220, and a complete system $660.
the Landy is friggin loud with the 3" system sans muffler, so the missus has demanded a muffler when I fab up the system for her Patrol.

Posted: Thu May 18, 2006 8:17 pm
by ACH
rick130 wrote:the MTQ one is cast like the OE one, I think all the others are fabricated.
IIRC, the MTQ one is $220, and a complete system $660.
the Landy is friggin loud with the 3" system sans muffler, so the missus has demanded a muffler when I fab up the system for her Patrol.

Does the MTQ dump have a weld boss for an EGT??
Posted: Sun May 21, 2006 3:35 pm
by rick130
I'm pretty sure MTQ put the boss in the down pipe (just below the flange), not the dump.
Posted: Mon May 22, 2006 3:05 pm
by Buckshot
Got an email back from Beudesert exhausts.3 Inch dump pipe is $245.Full Mandrel Stainless exhaust is $1550.Mild steel is $870
Posted: Mon May 22, 2006 3:30 pm
by bogged
Buckshot wrote:Got an email back from Beudesert exhausts.3 Inch dump pipe is $245.Full Mandrel Stainless exhaust is $1550.Mild steel is $870
I dont reckon Mandrel is worth the effort on such a low performance motor as a TD.. you could save $ there too.
Interesting on the price of Stainless .. bit

than I expected...
Mild looks good

Posted: Mon May 22, 2006 3:39 pm
by Tiny
Bruce, try humex in Albury
Posted: Mon May 22, 2006 3:41 pm
by bogged
Tiny wrote:Bruce, try humex in Albury
Im going twin snorkels and twin stacks like a big truck and add 1200 bulllights..
PS.. thanks for idea.
Posted: Thu May 25, 2006 1:13 pm
by Buckshot
i have had many quotes in the last few days.Midas exhausts quoted $300 plus.Custom made.
Carline quoted up to $600.Stainless custom.Told me that some turbopatrols could only have 2 and a 1/2 inch off the turbo.
MTQ quoted around $255 including GST.
Binskins uses an MTQ Dump Pipe or they can get one with press bent metal for under $200.This was from Mecury exhausts.Apparently it won't last as long as Stainless or Cast.
What do you guys reckon?
Posted: Thu May 25, 2006 3:34 pm
by bogged
Complete Beaudesert 3inch system INC dump pipe INC freight from Qld to Melb $950..
In stock can ship today.