TD42 Turbo Manifolds

Vehicles Components & Accessories For Sale/Swap
User avatar
Michael
Moderator
Posts: 2479
Joined: 05 Mar 2014 14:39
Full Name: Michael
Nickname: Steyn
Home Town: Centurion
Current 4x4: Patrol GU 4.2 Turbo Diesel
Home Language: Afrikaans
Location: Centurion, PTA
Has thanked: 189 times
Been thanked: 336 times

TD42 Turbo Manifolds

Post by Michael »

Gents

There are quite a number of people looking to turbo their N/A TD42 and the biggest problem at this stage is the manifold availability and price.

The second hand ones are very scares and at the moment there are not any available as I am looking for one. New they cost around R8,000 from Nissan and I think that is just too much money to pay for a manifold.

One option is that we can get new ones "casted" and machined for half the price.

Who would be interested in going this route, the more we order the cheaper it will get so I recon we should get away for between R3,000 and R4,000 for a manifold.
"The Just shall live by Faith" Rom1:17

Check out my build here My Patrol
And my engine rebuild here mostly engine related stuff
User avatar
ricster
Patrolman 1000+
Patrolman 1000+
Posts: 5850
Joined: 13 Jan 2010 11:16
Full Name: Cedric Warner
Nickname: Cedric
Home Town: Alberton Gauteng
Current 4x4: '99 Nissan Patrol 4.2 Turbo Diesel
Home Language: English
Location: LA..... No not Los Angles ..... Lower Alberton, Gauteng
Has thanked: 591 times
Been thanked: 468 times

Re: TD42 Turbo Manifolds

Post by ricster »

Just throwing a spanner in the works Michael, as i don't know what the costs would be compared to a cast manifold. I have a set of branches on my TD42. If one makes them up it will also allow a bit of movement for positioning of the turbo, especially for the exhaust dump pipe as it can land up being quite close to the firewall.

I'm not sure if you get better performance on the diesel with branches on, and bear in mind that it is also difficult to have a heat shield as is on a standard cast manifold. I have a rectangular piece of stainless steel offcut shimstock (about 150mm x 600mm fixed between the branches and the top mount IC that deflects the heat back down, secured with the bolts on the rocker cover.

I also have my EGT probe in the junction where all 6 pipes meet up, so I presume I am getting a more accurate general temperature reading as the exhaust air flow is constant and not reading more from one or 2 pistons exhaust ports. ( not sure if my explanation is making sense....hahaha )

I would think that branches would also give a better, unrestricted airflow due to no sharp 90 deg bends.
Regards
Cedric
Nissan Patrol GL 4.2 Diesel Turbo (Iron Maiden)
Nissan SANI 3.0 V6 4x4 (SOLD)
Isuzu KB 280 DT 2x4 ('ol Smokey) - SOLD
Suzuki TL 1000R "V twin" (Growler) - SOLD
User avatar
Tinus lotz
Moderator
Posts: 7579
Joined: 29 Aug 2010 13:07
Full Name: Tinus lotz
Nickname: Tinus lotz
Home Town: Centurion
Current 4x4: Nissan patrol 4.8 GRX 2005

Toyota 2.7 legend 35 LWB 4X4
Home Language: Afrikaans
Has thanked: 800 times
Been thanked: 549 times

Re: TD42 Turbo Manifolds

Post by Tinus lotz »

Cedic they want dik money for that and guys like andre steyn says his welded one is letting him down ....probably a reason why they make manifolds from cast iron in the factory. ....i will wait and here from Piet on that one ......i like the top mount turbo more ...UD does it that way ....let me put a pic .
Attachments
FB_IMG_1471498195705.jpg
FB_IMG_1471498195705.jpg (1.61 MiB) Viewed 3355 times
User avatar
ricster
Patrolman 1000+
Patrolman 1000+
Posts: 5850
Joined: 13 Jan 2010 11:16
Full Name: Cedric Warner
Nickname: Cedric
Home Town: Alberton Gauteng
Current 4x4: '99 Nissan Patrol 4.2 Turbo Diesel
Home Language: English
Location: LA..... No not Los Angles ..... Lower Alberton, Gauteng
Has thanked: 591 times
Been thanked: 468 times

Re: TD42 Turbo Manifolds

Post by ricster »

Hmmm... Mine is holding up pretty well, I've had the Iron Maiden now for 6 years, and those branches were put on there if I recall correctly from investigations I did years back, by the previous...previous owner. So I would guess more than 10 years back, without any signs of leaks or cracking. The only thing supporting the turbo and exhaust is those branches !!

But if they cost a lot more than the cast manifold, then not worth it..... unless there is a worthwhile power gain.
Regards
Cedric
Nissan Patrol GL 4.2 Diesel Turbo (Iron Maiden)
Nissan SANI 3.0 V6 4x4 (SOLD)
Isuzu KB 280 DT 2x4 ('ol Smokey) - SOLD
Suzuki TL 1000R "V twin" (Growler) - SOLD
User avatar
Michael
Moderator
Posts: 2479
Joined: 05 Mar 2014 14:39
Full Name: Michael
Nickname: Steyn
Home Town: Centurion
Current 4x4: Patrol GU 4.2 Turbo Diesel
Home Language: Afrikaans
Location: Centurion, PTA
Has thanked: 189 times
Been thanked: 336 times

Re: TD42 Turbo Manifolds

Post by Michael »

Cedric

Yes all valid points you have there. Problem is to find someone to build a branch manifold for a good price and also to get them adding a guarantee.
If there is someone who can make a branch manifold for cheap we can definitely look into it.

Looking at a cast manifold, I do think it can take more of a beating than a branch manifold. It might not give quite the same performance, but that's not what we are after so don't think its a real problem.

I run mine with no heat shield and the engine bay is not hot at all. Its very easy to keep the standard heat shield and just drill a hole for the EGT probe :thumbup:
"The Just shall live by Faith" Rom1:17

Check out my build here My Patrol
And my engine rebuild here mostly engine related stuff
User avatar
Peter Connan
Moderator
Posts: 6005
Joined: 10 Sep 2010 07:21
Full Name: Peter Connan
Nickname: Piet
Home Town: Kempton Park
Current 4x4: 1996 Patrol 4.5SGL
Home Language: Afrikaans
Location: Kempton Park
Has thanked: 1065 times
Been thanked: 983 times

Re: TD42 Turbo Manifolds

Post by Peter Connan »

If doing a specialized casting, it would be quite easy to put on a coulle of "lugs" to mount a heat shield.

If it looks something like Tinus's, it would also be simple to put in a lug from underneath at the turbo flange (thus at the collection point) for mounting the EGT probe. Just make sure it gets drilled and tapped as standard and before installation.

As for performance, i can't really comment but have been told that it mostly affects spool-up time.
How much (and how much money that's worth) would be a question for the owner to sort out.

I have had three sets of branches in my life. Two of them have cracked, and one basically fell apart completely, although i believe that was a result of adding heat shield tape to an old manifold.
I suspect the life of a set of branches is lroportional to the skill of the welder.

There is no doubt that a very compact manifold like the one shown above will be more robust.
Mag ons ons kenniskry met lekkerkry aanhoukry.
User avatar
ricster
Patrolman 1000+
Patrolman 1000+
Posts: 5850
Joined: 13 Jan 2010 11:16
Full Name: Cedric Warner
Nickname: Cedric
Home Town: Alberton Gauteng
Current 4x4: '99 Nissan Patrol 4.2 Turbo Diesel
Home Language: English
Location: LA..... No not Los Angles ..... Lower Alberton, Gauteng
Has thanked: 591 times
Been thanked: 468 times

Re: TD42 Turbo Manifolds

Post by ricster »

Yeah I agree a cast mani will be the most ridged for sure. I purely threw a spanner in the works, not knowing the cost to make up a proper set of branches would be.

Power wise I wouldn't be able to tell you. I never experienced my Iron Maiden with a cast manifold, so like you say its up to the owner. Too much maths to work it out on a Monday....hahaha
Regards
Cedric
Nissan Patrol GL 4.2 Diesel Turbo (Iron Maiden)
Nissan SANI 3.0 V6 4x4 (SOLD)
Isuzu KB 280 DT 2x4 ('ol Smokey) - SOLD
Suzuki TL 1000R "V twin" (Growler) - SOLD
User avatar
Dustin
Senior Member
Senior Member
Posts: 428
Joined: 14 Sep 2009 12:14
Full Name: Dustin Roberts
Nickname: Dustin
Home Town: Port Elizabeth
Current 4x4: Patrol-less :-(
Home Language: English
Location: Port Elizabeth
Has thanked: 42 times
Been thanked: 52 times

Re: TD42 Turbo Manifolds

Post by Dustin »

Cedric, you talk about having a branch setup on the Maiden.
Is it something like this ?
Image
I would imagine the welds or pipe seams would be the first to let go if something has to give.
But, if it ain't broke, don't fix it :rolling:

The cast iron manifolds would take up a lot less space and have less of a fulcrum action with the turbo hanging off of the end.
Image

I'm dead keen to get in on the action, so long as we can get enough guys to bring the unit cost down to the 3K (or sub-3K mark :wink: )
I've made a big enough hole for myself already. I don't want to be that guy who has to pull out at number 99 when people have put so much effort into something.
Let's see who else is in on this.
a.k.a. Datsun Dustin

View my Patrol's story here : http://patrol4x4.co.za/viewtopic.php?f=43&t=6478

No hill too steep, no donga too deep !
GO PATROL !!!
User avatar
Tinus lotz
Moderator
Posts: 7579
Joined: 29 Aug 2010 13:07
Full Name: Tinus lotz
Nickname: Tinus lotz
Home Town: Centurion
Current 4x4: Nissan patrol 4.8 GRX 2005

Toyota 2.7 legend 35 LWB 4X4
Home Language: Afrikaans
Has thanked: 800 times
Been thanked: 549 times

Re: TD42 Turbo Manifolds

Post by Tinus lotz »

Lets start a list
1 ) Oom lood
2 ) Dustin
3) Bertjan
4) Andre steyn
User avatar
SJC
Patrolman 1000+
Patrolman 1000+
Posts: 3188
Joined: 23 Nov 2014 14:20
Full Name: SJC
Nickname: Fanus
Home Town: Nelspruit
Current 4x4: Patrol 4.2 SGL
Home Language: Afrikaans/English
Has thanked: 195 times
Been thanked: 171 times

Re: TD42 Turbo Manifolds

Post by SJC »

Lyk n td42 manifold anders as 'n tb45 sin? (my 4.5 het branches op - so kan nie vergelyk nie).
‘96 GQ 4.2 SGL
‘01 GU 4.5 GRX
‘08 GU TD42 BAKKIE
Post Reply

Return to “38. Vehicles Accessories For Sale/Swap”

Who is online

Users browsing this forum: No registered users and 2 guests