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4.2 turbo 3" exhaust mod & blown 5th (warranty)

Tech Talk for Nissan owners.

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4by
Posts: 122
Joined: Mon Mar 31, 2003 9:30 am
Location: Victoria

4.2 turbo 3" exhaust mod & blown 5th (warranty)

Post by 4by »

Had a 3" mandrel exhaust, from the turbo back, just fitted to my GU 4.2 turbo diesel.

The vehicle's performance is far superior. It has more power & uses less fuel. I can now go uphills without changing back a gear.

I will now get the turbo, fuel & injectors tweaked via the dyno.

If anyone is considering having the exhaust done, go for it.
Last edited by 4by on Wed Mar 09, 2005 2:46 pm, edited 2 times in total.
Cheers.......4by.
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Re: 4.2 turbo 3" exhaust mod

Post by vn15 »

4by wrote:Had a 3" mandrel exhaust, from the turbo back, just fitted to my GU 4.2 turbo diesel.

The vehicle's performance is far superior. It has more power & uses less fuel. I can now go uphills without changing back a gear.

I will now get the turbo, fuel & injectors tweaked via the dyno.

If anyone is considering having the exhaust done, go for it.



Looking forward to see the result from the dynorun.
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Post by morkz »

yeah i had my exhaust done was so so....

best inprovement is boosting and thus allowing for more fuel at reduced EGT's

what your doing has been done by so many people already

mine details are on here somewhere am now running 100kw at rear wheels with 4.6 gears and 35" mtr's
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04 GU TD6 wagon with some ARB stuff
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Morkz Media Web and Graphic Design
Also webhosting and domain registration.
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Post by dinos4x4 »

I dont know much about diesels whats EGTs
100series 2002 4.5/LPG
GET YA GEAR OFF ROAD
www.4x4web.com.au/dinos4x4
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Post by wannaberacer »

EGT's = Exhaust Gas Temperatures. The lower the better. Any mods that make it go higher will shorten engine life
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Post by morkz »

however boosting them and putting more fuel in them and making tuning the properly will also increase powere and reduce EGT's

so boosting a diesel isnt always bad
---------------------------------------------
04 GU TD6 wagon with some ARB stuff
---------------------------------------------
Morkz Media Web and Graphic Design
Also webhosting and domain registration.
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4by
Posts: 122
Joined: Mon Mar 31, 2003 9:30 am
Location: Victoria

Post by 4by »

To add to the exhaust mod, I've just had the injectors removed cleaned and adjusted, blocked with poor spray pattern, had the fuel pump adjusted and turbo boosted a bit. Only done slightly not to sacrifice reliability.

Now the car performes far better although its hard to tell cause 5th gear blew this morning on the way there and I'm taking it easy till I get it fixed. Big Bummer....
Cheers.......4by.
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Post by morkz »

i believe 5th gear was a warranty issue
---------------------------------------------
04 GU TD6 wagon with some ARB stuff
---------------------------------------------
Morkz Media Web and Graphic Design
Also webhosting and domain registration.
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4by
Posts: 122
Joined: Mon Mar 31, 2003 9:30 am
Location: Victoria

Post by 4by »

[quote="morkz"]i believe 5th gear was a warranty issue[/quote]

Hope so James......I'm just out of warranty.....but fingers crossed.....
Cheers.......4by.
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Post by morkz »

4by wrote:
morkz wrote:i believe 5th gear was a warranty issue


Hope so James......I'm just out of warranty.....but fingers crossed.....


try and see how u go...

did u take it to diesel tech?

how much boost was it running?
---------------------------------------------
04 GU TD6 wagon with some ARB stuff
---------------------------------------------
Morkz Media Web and Graphic Design
Also webhosting and domain registration.
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4by
Posts: 122
Joined: Mon Mar 31, 2003 9:30 am
Location: Victoria

Post by 4by »

Andrew did a pretty good job. It was running about 8lb boost, so it went up a couple of pounds........sounds like my weight after a few pots....
Cheers.......4by.
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Post by morkz »

4by wrote:Andrew did a pretty good job. It was running about 8lb boost, so it went up a couple of pounds........sounds like my weight after a few pots....


i hope u enjoy the mods rob :armsup:
---------------------------------------------
04 GU TD6 wagon with some ARB stuff
---------------------------------------------
Morkz Media Web and Graphic Design
Also webhosting and domain registration.
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4by
Posts: 122
Joined: Mon Mar 31, 2003 9:30 am
Location: Victoria

Post by 4by »

Yeah, Once the box is fixed I can enjoy it better.

Let you know next time we head out bush, if your interested tag along.
Cheers.......4by.
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Post by morkz »

4by wrote:Yeah, Once the box is fixed I can enjoy it better.

Let you know next time we head out bush, if your interested tag along.


yeah i would

drop me line if u still have my number otherwise i'll pm u
---------------------------------------------
04 GU TD6 wagon with some ARB stuff
---------------------------------------------
Morkz Media Web and Graphic Design
Also webhosting and domain registration.
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4by
Posts: 122
Joined: Mon Mar 31, 2003 9:30 am
Location: Victoria

Post by 4by »

Nissan are replacing the gearbox under warranty.....very happy...

I can highly recommend Rex Gorrell Nissan in Geelong who have been very helpfull.
Cheers.......4by.
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Post by morkz »

4by wrote:Nissan are replacing the gearbox under warranty.....very happy...

I can highly recommend Rex Gorrell Nissan in Geelong who have been very helpfull.


thats awesome.... and you bought yours second hand...

like to see toyota do anything this helpful
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04 GU TD6 wagon with some ARB stuff
---------------------------------------------
Morkz Media Web and Graphic Design
Also webhosting and domain registration.
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