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GU 4.2 turbo 3" exhaust

Tech Talk for Nissan owners.

Moderators: toaddog, V8Patrol

Posts: 748
Joined: Tue Nov 09, 2004 9:45 pm
Location: Lilydale

Post by Dzltec »

Eric, throw that filter away and use a paper element, much much more efficient and safer for you.


Andy
www.diesel-tec.com.au Ph 03 9739 5031
Ball bearing turbo upgrades for factory turbo vehicles. Got a diesel question just ask.
Home of the twin turbo shorty and many 150rwkw+ patrols.
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Joined: Wed Nov 27, 2002 10:13 am

Post by bogged »

Dzltec wrote:Eric, throw that filter away and use a paper element, much much more efficient and safer for you.
x lots
Posts: 82
Joined: Thu Jan 13, 2005 6:45 pm
Location: Brisbane

Post by red80 »

I'm going to fit a 3" exhaust to my 4.2 TD (intercooled) and was going to go for one muffler. How loud are they with no mufflers, do they drone a bit on the freeway? or will it be too quite with one muffler, I still want to be able to hear it but don't want it to be annoying. I was getting a Beaudesert exhaust system
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Joined: Tue Apr 12, 2005 3:57 pm
Location: Brisbane

Post by vanbox »

i have no muffler on my beaudesert system and i dont hear the engine when cruising....more tyre noise. so if you have muddies then you wont notice the engine.

PAUL
MUD BEERS and MAYHEM

DURAMAX POWERED GU
Posts: 343
Joined: Fri Jun 18, 2004 3:25 pm
Location: Melbourne

Post by EricB »

Ok Exhaust done today.

Good for the money but I had a few issues.

$570 and I was not really after a full mandril system but this guy said full mandril in mild steel for the price above. Nice

Drive the car home and a feel a little more power and im looking forward to the tune.
It has a little whistle now when changing gears ;)

The note is a little deaper but I would say it is not louder then the stock system. This is with a straight through medium size mufler.

I jump under the car when I got home.
1st one or 2 bends are mandril and the last bend on the tail pipe is mandril.

I dont mind so much but I do mind when told ALL mandril (why bullsh*t)

Then while under the car. (not as much clearance as the old GQ, must do suspension next) I notice the brackets hanging down from the front swaybar and a bolt missing from each. Doh

Lucky I found some in the workshop.

I just have 1 question. Im not sure if he did all of the dump pipe or 3/4.

He told me where he started from. Im just not sure what is normally done.

He started at the flange facing down at the ground. Off the cast 90deg elbow.

Is this where they normally start or do they replace the elbow and bolt onto the turbo facing the firewall.

Would this 6" of casting make a lot of difference?

PS. I got a paper air filter on the way home.

I figure oil and dust make mud in the reuseable filters ;)

Cheers
Eric
2000 GU II 4.2TD
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Joined: Wed Mar 21, 2007 7:49 pm
Location: Mornington/ Victoria

Post by PGS 4WD »

As much gain comes from doing the cast dump pipe as there is doing the rest of the system, we always include the cast dump in our installations, the standard dump would be lucky to be 1 3/4 inches and is very restrictive.

You get what you pay for.

Joel
-Pre trip inspections/ servicing
-Suspension/ custom modifications
-4wd Dyno & tuning
-Qualified mechanics
Posts: 343
Joined: Fri Jun 18, 2004 3:25 pm
Location: Melbourne

Post by EricB »

ok cool

So i need to find a 3" cast dump or have one made up.

http://www.eng-tek.com.au/product_info. ... cts_id=229
2000 GU II 4.2TD
Posts: 45681
Joined: Wed Nov 27, 2002 10:13 am

Post by bogged »

EricB wrote:ok cool

So i need to find a 3" cast dump or have one made up.
you can buy the dump on its own from Beaudesert.
Posts: 343
Joined: Fri Jun 18, 2004 3:25 pm
Location: Melbourne

Post by EricB »

Cheers, I have a few options now. ;)
2000 GU II 4.2TD
Posts: 1041
Joined: Wed Jan 07, 2004 1:09 pm
Location: Melbourne, Victoria

Post by Mudzuki »

bogged wrote:
EricB wrote:ok cool

So i need to find a 3" cast dump or have one made up.
you can buy the dump on its own from Beaudesert.
I tried to get a quote for just the dump pipe, and they said that they don't sell the system in pieces, just as a complete kit. :cry:

It looked to be one of the better designed dumps
Posts: 343
Joined: Fri Jun 18, 2004 3:25 pm
Location: Melbourne

Post by EricB »

http://www.scottsrods.com.au/

This guy has quoted me $150 + $15 shipping to Melb.

He sent a pic. Its a steel custom job.




And the other link a had earlier looks ok but double the price.
Problem is I cant contact that place.

http://www.eng-tek.com.au/product_info. ... cts_id=229
2000 GU II 4.2TD
Posts: 1443
Joined: Tue Apr 12, 2005 3:57 pm
Location: Brisbane

Post by vanbox »

just ordered my dump pipe through the local exhaust shop, $240 fitted. was quoted $215 from beaudesert (supply and shipping only).

PAUL
MUD BEERS and MAYHEM

DURAMAX POWERED GU
Posts: 153
Joined: Mon Aug 30, 2004 12:51 pm
Location: Melbourne

Post by BrettInUte »

GU TD42 wagon.

It started with 75rwkw with a bodgey fuel up only (not done by me)

After a beaudesert 3 inch system, re tune, minor boost up, earlier boost cut in - it got to 111rwkw.
Tune done by turbo engineeering in Thomastown vic.


Exhaust temps down, fuel usage down.

Completely different car to drive. So much more torque. Use 3rd gear thru corners where i was nearly back to 1st.
had it over 180kmph (private road).
Water temp doesnt move - even when towing long distances on really hot days.
Couldnt be happier.
Posts: 45681
Joined: Wed Nov 27, 2002 10:13 am

Post by bogged »

Mudzuki wrote:
bogged wrote:
EricB wrote:ok cool

So i need to find a 3" cast dump or have one made up.
you can buy the dump on its own from Beaudesert.
I tried to get a quote for just the dump pipe, and they said that they don't sell the system in pieces, just as a complete kit. :cry:

It looked to be one of the better designed dumps
I got mine off them, just dump..
Posts: 343
Joined: Fri Jun 18, 2004 3:25 pm
Location: Melbourne

Post by EricB »

Bought a dump pipe from DzlTech today to fit on the weekend.

Going back for a tune in a couple of weeks :)

Thanks for all the advice guys.
2000 GU II 4.2TD
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