Nissan ELGRAND who has one?

[dvldoc]

Very good guide to install a manual boost controller on the ZD30 engine.

Manual Boost Controller

You only need a basic boost controller and not the in car needle valve. But this gives you a ideal of how to install one as these are different due to the VGT turbos. Elgrands should not be any different.

[krmoto]

Yes this is my setup, my boost gauge was showing me negative pressure-10 to -20 psi but since my first post l have made some progress, l had the boost gauge T pickup on the pipe with the green and white damper filter which is vacuum to turbo so l ended up drilling a hole in the rubber intake hose to the throttle body and using that as my pressure pickup point, then l gave it a road test and yes we were over boosting at up to 20+psi so then l fitted a new MAF sensor and now my neo pulls like a train with about 5-6 psi and hitting about 15 psi max, today l will fit the EGR plate and catch tank to keep my new MAF clean and see what that does to my boost and performance, there is info on NISSAN PATROL ZD30 about adjusting the VNT on the turbo when EGR plate fitted. will keep you all posted.
By the way, l live in the UK

That hose is connected to the Varible nozzle turbocharger control solenoid valve. That little white piece that looks like a filter is the Damper. So yes you need to connected some where on the air flow. The Patrols looks a bit different but does the same thing.

Your MAF adpater looks more than long enough to add a barb to slide the hose on. The rubber coupler you use only needs about 2.5" of space to be secured. You will just need to get a longer hose to change it with.

[krmoto]

Just fitted EGR block off plate and done a short road test, under hard acceleration boost is now 9 psi, engine feels strong but will give it a good test when l get a boost controller sorted and eventually EGR, do all boost controllers just allow air into the vacuum pipe and do l fit my boost controller on the pipe fitted to the turbo servo?.

Many thanks for your help.

[krmoto]

sorry l mean EGT (eventually)

[dvldoc]

Good to see your a fellow modder like me, Absolutely get a EGT gauge for the Neodiesel, I see about 480C/900F at full throttle, with the water injection and LPG fumigation kit going at the same time. When I get back next year I will be increasing the water injection nozzle size for even more power after I get my downpipe and exhaust done up.

Here is another little performance secrete for these vehicles. You see the photo of the air intake, That little tube going to the silencer, (thow it in the trash ) Here is what you do, replace it with a motorcycle air filter and you will get way better air flow and really here your turbo.



If you want even better airflow get a MAF sensor adaptor made up and put on a cone style filter. But I found this little mod does very well and is very noticeable. That silencer really kills airflow.

[krmoto]

I tried to fit the EGT today and decided to put it directly after the turbo and soon discovered (after drilling a 3mm hole) ZD30's have a cat right after the turbo, can l continue and fit the probe in the cat or plug it and go before the turbo?, thanks for the air flow tips, l will be on to that when l get this EGT and boost controller sorted.
Also l did fit my EGR plate at the inlet manifold (after the EGR valve), is this ok?.

[krmoto]

Have now fitted the probe in the exhaust manifold just after the front cylinder port (easy to get at) and will give me a reading off a cylinder that can run weak/hot, will see how it goes.

[dvldoc]

Remember 1250F / 680C is the danger zone, especially for the ZD30 motor. They are best keeped under 1100F / 590C.

[krmoto]

Remember 1250F / 680C is the danger zone, especially for the ZD30 motor. They are best keeped under 1100F / 590C.

Ok thanks, I have been looking at Devilsown UK but not sure which is the best kit and nozle size for my ZD30, l see kits that do each port and kits that do the main intake tube, please can you advise based on what you have found out so far.

[dvldoc]

DVC-30 kit with the 3gph nozzle, or you can get the stage 1 kit which is cheaper. I would ask to replace the second nozzle which is a 7gph one with a 4gph nozzle, If you decide you want a bit more power throw in the 4gph nozzle and you can take your boost up to 20psi with that one.