Turbo a 4.2 Nissan

Submitted: Friday, Jun 27, 2003 at 17:17
ThreadID: 5701 Views:2460 Replies:5 FollowUps:22
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I am thinking of fitting a turbo to a 4.2 SWB Nissan Patrol
I would be interested in any comments or recomendations from the forum as to the better system to use or any modification that will be of use to me
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Reply By: Truckster (Vic) - Friday, Jun 27, 2003 at 19:06

Friday, Jun 27, 2003 at 19:06
Petrol or Diesel?

How many klms on the engine, clutch and gearbox?

Turbos put lots o stress on the engine and drive line compared to standard.

Try the archives, its been done before.

I have a Denco system on my TD42, happy with it, Has more low down power than the others, but depends what you want it for. Id get another tomorrow if I had another GQ/GU 4.2 Diesel.

Some are mounted higher than others, which is good for water crossings.

Safari, DTS, AXT, numerous others.

The other option is supercharger, Colin will fill in the blanks on his one.
AnswerID: 23675

Follow Up By: Ray - Friday, Jun 27, 2003 at 20:40

Friday, Jun 27, 2003 at 20:40
This truck is set up for competitions
102000Ks hasjust been fitted with a new HD clutch
The competitions in NZ are normaly of a slower speed similar to your tough truck series.
The reason for the questions are that there is not a lot of options or info in New Zealand
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FollowupID: 15846

Follow Up By: Truckster (Vic) - Friday, Jun 27, 2003 at 20:58

Friday, Jun 27, 2003 at 20:58
Hey Ray.

www.dencodiesel.com
www.airpowersystems.com
www.dynamicturbo.com.au/
www.total4x4.com.au/Info_Sheets/Turbos.PDF
www.are.com.au is a GREAT site on Turbos.
http://www.turbotech.com.au/

AXT are in Dandenong Victoria, no website.

They are all good,
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FollowupID: 15848

Reply By: desert - Friday, Jun 27, 2003 at 20:41

Friday, Jun 27, 2003 at 20:41
Whatever kit you go for, pay the extra $ and get the "Boost compensator valve" fitted to the injector pump and then have the fuel settings set on a chassis dynomometer. That way, you know your cylinder temperatures are within spec and not going to melt pistons with high boosts and overfuelling.
AnswerID: 23683

Follow Up By: Truckster (Vic) - Friday, Jun 27, 2003 at 20:55

Friday, Jun 27, 2003 at 20:55
Fuel Aneroid you mean??

Only really good if your going High Boost 12+psi on an after market Turbo.

Well thats what I was told by ARB why Im not runnin 14psi!

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FollowupID: 15847

Follow Up By: desert - Friday, Jun 27, 2003 at 21:08

Friday, Jun 27, 2003 at 21:08
Some call it that, and it does allow fine tuning of fuel metering of low boost engines, ie TD42 GU (7psi) and given that most after market system restrict boost to 10 or 11 psi, it is still wise to fit the boost valve, purely for clean air emissions regulations. (particulates).
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FollowupID: 15849

Follow Up By: Truckster (Vic) - Friday, Jun 27, 2003 at 21:10

Friday, Jun 27, 2003 at 21:10
I was quoted by Rankin Diesel in Bayswater $3000 to do Fuel aneroid and fuel pump.

I nearly soiled my pants on the spot..
but others ahve said he isnt cheap.

Im going to BJ Diesel in few weeks to get Injectors done. need $$ first.
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FollowupID: 15850

Follow Up By: Martyn (WA) - Friday, Jun 27, 2003 at 22:39

Friday, Jun 27, 2003 at 22:39
Truckster,
Sold the engine no problem, it's now going to another life as a turbo intercooled motor, after what it was the old girls in for a bit of a shock.Keep the shiny side up
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FollowupID: 15860

Follow Up By: Truckster (Vic) - Friday, Jun 27, 2003 at 23:43

Friday, Jun 27, 2003 at 23:43
Good news!!!!!!

Again extreme thanks for the offer and deal.

to others, this bloke is very worthy of dealing with, and a real gentleman.
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FollowupID: 15864

Follow Up By: desert - Saturday, Jun 28, 2003 at 13:27

Saturday, Jun 28, 2003 at 13:27
Yeah I've heard that Rankins are a bit hot price wise, thats partly why I stopped going there many moons ago. Heavy diesel shop behind Truckcity in Campbellfield, M&J or something like that, specialises in big diesels, ie Cat, GM, Cummins etc, but he himself has a GU ute which he has tricked up. Does all pump and injector work in-house, and by all accounts, it fairly rocks! Will be speaking with him in a couple of weeks when I get back to work. He has a theory regarding Nissan injector pressures, so will sound him out.
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FollowupID: 15884

Follow Up By: Truckster (Vic) - Saturday, Jun 28, 2003 at 18:36

Saturday, Jun 28, 2003 at 18:36
Desert, I love you long time if you get the details..

Sort of keen to get this bleep sorted, out my fuel econ is rediculous!!!
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FollowupID: 15899

Follow Up By: desert - Sunday, Jun 29, 2003 at 20:16

Sunday, Jun 29, 2003 at 20:16
Only $1 luv U long time truckie.
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Reply By: Martyn (WA) - Friday, Jun 27, 2003 at 22:43

Friday, Jun 27, 2003 at 22:43
Ray,
I fitted the safari turbo to my motor, no problem, I have a thermocouple on the exhaust outlet to monitor the gas temp, this helps a lot. I haven't fitted the extra valve, at the price Truckster mentions I won't be either. Keep the shiny side up
AnswerID: 23695

Follow Up By: Truckster (Vic) - Friday, Jun 27, 2003 at 23:45

Friday, Jun 27, 2003 at 23:45
Ive had quotes from 3 places to redo fuel pump.

rebuild and all, cheapest was $2200 :( but that was west end diesel and included setting the thing up for the turbo PROPERLY.
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FollowupID: 15865

Follow Up By: desert - Sunday, Jun 29, 2003 at 20:13

Sunday, Jun 29, 2003 at 20:13
Martyn, what range of temps. does your engine operate through??
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Follow Up By: Martyn (WA) - Sunday, Jun 29, 2003 at 22:57

Sunday, Jun 29, 2003 at 22:57
Desert,
Around town usually around the 200 degree C, 250 degrees up small hills, I never turn the engine off unless the temp is around the 100 degree mark after a run. With the camper trailer on the back I rarerly take the exhaust temp over the 450 degree, 475 degrees Max without changing down, from what i've seen it's easy to get the temp higher than this without tring to hard, I was surprised, I think that 600 to 650 degrees C is where things start to melt or that's what I base my judgement on. As usual Desert others will have other opinions but this is the way I choose. Keep the shiny side up
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FollowupID: 15961

Follow Up By: desert - Monday, Jun 30, 2003 at 09:03

Monday, Jun 30, 2003 at 09:03
Thanks Martyn, that'll help me out with selecting a pyrometer.
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FollowupID: 15970

Follow Up By: Truckster (Vic) - Monday, Jun 30, 2003 at 11:01

Monday, Jun 30, 2003 at 11:01
Desert,

try VDO, I have a VDO Pyrometer to go into mine, going to mount it in a Dashpod, with Boost guage, and Temp Guage.....

should look good!
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FollowupID: 15975

Reply By: colin - Saturday, Jun 28, 2003 at 10:08

Saturday, Jun 28, 2003 at 10:08
i have a 92 td 4.2 and fitted a super charger, it runs 8psi at idle and all through the rev range, it has no lag like a turbo and the low down torge is unbeleivable meaning you can run in a higher gear at lower revs and have more ease of control, the unit is the same as whats on the commodore and is fully servicable, runs its own oil and no need to idle down. No extra heat is generated. I can get down to 800 revs and the thing just keeps on pulling. The fuel economy has not been effected. The mechanic that fitted the unit told me they are easier than turbos on motors as they run at a constant pressure and doesnt come in at a great sudden boost. I fitted mine at about 240,000 ks and now done 260,000 and have had no problems at all,well worth looking into. Col
AnswerID: 23708

Follow Up By: Ray - Saturday, Jun 28, 2003 at 17:09

Saturday, Jun 28, 2003 at 17:09
Hi Colin
Tell me more, this sounds like a better alternative.
The fact that the pressure is constant must be kinder to the engine plus make thye truck more user friendly when the need to walk over obsticles at or just above an idle and still have the extra power on hand. I assume this unit is belt driven, where is it mounted?
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FollowupID: 15888

Follow Up By: Truckster (Vic) - Saturday, Jun 28, 2003 at 18:37

Saturday, Jun 28, 2003 at 18:37
Told ya Col was the man for the blower.

Colin, you got any photos etc of your setup??

If you would write up a bit of a story, and some pics, Id like to up it to gqpatrol.com for an info/alternative thing for people.
Email it to me.
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FollowupID: 15900

Follow Up By: Hilly - Saturday, Jun 28, 2003 at 23:01

Saturday, Jun 28, 2003 at 23:01
I have a Sprintex Supercharger fitted to my 80 series 4.2 litre diesel and concur with all of Col's comments bar the fuel economy. My consumption did increase but I think that's mainly due to me using the extra power for acceleration and leaving the traffic behind. It's also a little harder to find mechanics with familiarity. Everybody seems to have a little turbo experience but few have dealt with superchargers. With no adjustment to boost on a supercharger other than pulley size, I tend to think that my fuel setting is still a little high. I don't blow smoke but I had the injectors done and the vehicle dyno'd at the same time, (about 150k on the clock, now 160k) and told the dude that I was looking for an improvement in economy but no joy.

What implications are there for rich or lean running? Any info appreciated.
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FollowupID: 15909

Follow Up By: colin - Sunday, Jun 29, 2003 at 10:38

Sunday, Jun 29, 2003 at 10:38
Hi Truckster whats your email adress. Col
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FollowupID: 15918

Follow Up By: Truckster (Vic) - Sunday, Jun 29, 2003 at 19:37

Sunday, Jun 29, 2003 at 19:37
Colin
go with

vfr750fv
at
yahoo
dot
com
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FollowupID: 15924

Follow Up By: desert - Sunday, Jun 29, 2003 at 20:19

Sunday, Jun 29, 2003 at 20:19
Colin, out of interest did the fitter of the supercharger drop the sump and do a bearing inspection prior to the work? And what sort of warranty did they offer you?
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FollowupID: 15934

Follow Up By: colin - Tuesday, Jul 01, 2003 at 11:24

Tuesday, Jul 01, 2003 at 11:24
Hi Desert no the sump didnt come of, i have had the vehicle from 90,000ks and know the prior history i have serviced the vehicle religiously and knowing the td42 is good for over 500,000 had no hesitation. I got a 12 mth warranty on parts and labour. Col
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FollowupID: 16041

Reply By: colin - Sunday, Jun 29, 2003 at 10:36

Sunday, Jun 29, 2003 at 10:36
Hi Ray, yes it is belt driven and the unit sits on top of the inlet manifold which means the power steering pump gets moved over to the left looking at the motor, also a new manifold is needed, but these are all part of the kit. I still run the 2 air cleaners and have extractors and bigger exhaust. The boost can also be boosted by changing the pully which is a 5 min job. Col
AnswerID: 23760

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