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dronus4x4

NADS step by step guide

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Well, technically you can use those gauges but for example the boost gauge is not for diesel engines but for petrol unit. Diesel engines don't need to have vacuum boost display (no throttle buterfly flap). ....

I'm also concerned about the level of illumination these gauges produce especially at night. Personally I'm also not fan of analog (needle and scale) gauges as they're too hard to keep a tab on especially boost gauge.

 

It is a matter of personal preference though so whatever takes your fancy.

 

Cheers

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Hi all,

Have read most of these posts a couple of times and now considering options. I do not think I'm capable of making the NADS installations myself due to a lack of skill and also old age.

Previously, I've had LPG fitted to my 2000 GUII and at that time a 2.5" exhaust. Later I've had fitted a EGR plate and a dawes valve. At the time, I was advised the valve was set to "mid range" at 15psi.

This was done because I read somewhere that it was probably a good idea, never understanding fully the why's and wherefore. Reading this forum has changed that and for that thanks to NADS Guru and others.

I guess that's when a gauge should have been fitted because without it you're flying blind!!

So my question is, where can I take my Patrol to have these missing items fitted properly? I live in South Gippsland, about an hour from Pakenham and a bit more from the Eastern Suburbs of Melbourne.

 

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You will find that most shops will not be interested to fit these for you, maybe at best the gauges (boost/pyro) but most will avoid Dawes, Provent etc.

if you wee in SA than there are couple of shop doing these now. probably places specializing in 4WD tuning etc might be willing to assist you but it is mostly DIY.

Whatever you do don't mention NADS, ask for boost and EGT gauge installations, Provent installation etc.

 

Yo can buy some if not all the bits from this bloke (I believe he is located in Melbourne somewhere) http://stores.ebay.com.au/mcbautopartsau/  he might be of some assistance as to where to get the parts fitted.

 

Cheers

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Great info Dronus,

I have recently bought an 01 GUII with a 40k replacement engine (old one went BANG on the previous owner). It had intercooler, turbo & radiator replaced at the time of transplant.

My steps of MODS will be as follows: Snorkel, Boost & EGT gauges, catch can. MONITOR then Dawes, Needle valves and EGR blocking

Do you agree this is a logical approach??

Mat A 

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Hi, i have just recently purchased a 3.0L 2003 gu with 300,000kms. It runs ok but the engine light has come one once and gone off. Its been running ok but a couple of times it feels like its lost all power and struggling to get up and go. Would installing the nads now help the car or is it to late and chances r the damage is already done?

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Hi, i have just recently purchased a 3.0L 2003 gu with 300,000kms. It runs ok but the engine light has come one once and gone off. Its been running ok but a couple of times it feels like its lost all power and struggling to get up and go. Would installing the nads now help the car or is it to late and chances r the damage is already done?

 

G'day bud,

It is never too late to install NADS, especially taking control of the boost away from enginer ECU will transform the car. As for that fixing your occasional loss of power you might wanna check a few things first.

 

Make sure you don't have a vacuum leak as that will retard turbocharger vanes and it will feel guttless for sure. This where boost and EGT gauge are great help to see what is going on.

 

Simple test is to check with engine idling that the turbo actuator is fully up against the stop screw and not moving up/down in erratic fashion or staying fully down, that points to boost leak.

 

Regards

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hi new to the forum ....

spent last night reading though this thread and was wanting to know ....I have a 2008 zd30 common rail patrol with 260 ks.

 is this mod still worth doing being the later engine or is it only parts of it that I should look at ..

I am planning on intercooler upgrade as mine is leaking plus a catch can ... also in the process of fitting pyro and boost gauges

ty in advance

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G'day mate, ZD30 is still a weakness however on CrD version a bit stronger.

 

What however you will benefit from is much better tractability if you remove boost control from ECU's harms way by installing needle valve and Dawes combo so not so much there to assist the engine from failing sooner just have better performance,

 

All the other bits are still valid for CrD too with an exception to EGR shim which can set DTC and MIL indicator. Some people drill small hole in the shim to avoid faults but honestly its just to avoid engine check lamp ON nothing else. No effect on performance.

 

Regards

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You can run up to 18 psi safely but need to watch as that will increase flow rate in turn causing MAF voltages to raise past "safe" levels especially if on aggressive spool up rate which ECU uses to reduce fuelling aka limp mode.

Its a chicken or egg situation some models are more affected than other (e.g. Series 4 vs series 2 and 3)

 

Regards

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I don't think you can do all the mods however the catch can, boost and exhaust temp gauges are useful on RD28 engine. There is no point in having Dawes valves there as RD28 doesn't have variable geometry turbocharger (VGT), blocking EGR though is recommended. I'm not sure on benefits of having JDVM in there and adding extra fuel lift pump can't hurt either so will not hurt to have a better control of glow plugs....

Regards

 

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Hi Guys

New to the forum and have just done the NADS with Dawes valve to me GU3 04 ZD30 wagon as describe on this thread and has made a remarkable improvement on EGR temps and boost spiking.

The Patrol had a DP Chip fitted and was wondering if i need to remove the chip now i have fitted the Dawes valve etc and maybe help with fuel efficiency?

Also done the EGR block with gauges, HPD intercooler & fan with catch can.

Cheers

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7 hours ago, Big Dub said:

Hi Guys

New to the forum and have just done the NADS with Dawes valve to me GU3 04 ZD30 wagon as describe on this thread and has made a remarkable improvement on EGR temps and boost spiking.

The Patrol had a DP Chip fitted and was wondering if i need to remove the chip now i have fitted the Dawes valve etc and maybe help with fuel efficiency?

Also done the EGR block with gauges, HPD intercooler & fan with catch can.

Cheers

Nah, mate leave the DP chip in, it actually goes nicely with the rest of the mods. I'm wondering you're not mentioning anything about a needle valve in there so I hope it is.

Regards

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Yep, It happens especially when too aggressive spool up is set or possibly too slow so you may  have to play with the adjustment of the needle valve a bit. If you are getting over 11 psi boost under 1,950 RPM then you might have the spool up a little too eager.

It will probably take a few trials and errors to get right.

I would try to set the system without DP chip first and then introduce the DP unit to it and fine tune as required.

Regards

 

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Hi guys

This may sound like a dumb question but my 03 Patrol just spat an engine from overboosting. We have just fitted a secondhand engine with low ks however the mechanic is telling me i need a new boost control solenoid valve. Do i need this if i am fitting a dawes valve and needle valve etc.

Thanks

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G'day,

If you're fitting Dawes and needle valve you don't need factory boost control solenoid, indeed you don't want one there anyway.

ZD30 engines don't break from overboosting, that's a myth perpetuated by those who don't understand what is going on in there. Overfuelling is the usual case, those dual spring injectors dribble/leak fuel combined with really terrible air fuel control.

Regards

Edited by Rumcajs

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9 hours ago, barnowl71 said:

Many of the step by step photos in the post cant be viewed? ..........

This is due to the original poster using Photobucket (a third party image hosting service). Photobucket changed from a free image hoster to a paid one, anyone who had images stored there needs to pay yearly now or the images won't display.

As the forum admin, I implore ALL users to upload images directly to our forum - This will ensure they never get lost or broken. If you hit any limits just message me and I can increase the amount of storage space available. 

Note: I have contacted the OP and asked them to update the post by uploading the relevant images to our forum.

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