Boost Gauges & Dawes Valve

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Jay666d

Well-known member
Joined
Jul 12, 2016
Messages
1,375
Alright, I'm sure this has been talked about plenty of times... But I'm having a bit of a head scratcher!

I was having a play around with a boost gauge and managed to plumb it in as follows:











And just as a temporary measure set up the gauge on the dash.






OK, no problems so far...

After I drove around a bit like this, I decided to fit a Dawes Valve.

Here in lies the problem... It doesn't mater which tube I plumb into what, I cant seem to get it to work. I've tried google for an image or diagram and find nothing definitive! :confused:

Can someone in the know please help me out, maybe show me a diagram of how it's setup in your Patrol!

Cheers. Jay.
 
The dawes device has to go in the small pipe between turbo outlet and actuator and you bleed off air to right amount on boost on the guage. It don't go into boost guage line
 
Also please tell me that fitting for guage that you've put into the large boost pipe has a fixing on the back and not just screwed into pipe
 
Also please tell me that fitting for guage that you've put into the large boost pipe has a fixing on the back and not just screwed into pipe

I'm glad you said it!!!! :eek: :eek: :eek:

That's going to be leaking in no time
 
Also if you have put a fixing on the back make sure it's tight or superglue as you won't want that dropping into engine.



I did mine again today and drilled and tapped into the intercooler


Also another thing of the 3 litre bud is block the egr valve with a blanking plate. And fit catch can.. Get all three set up right and will be worry free. Common must do's on the patrol forums with the 3 litre neos
 
Jay, I get the feeling you're rushing it....
I'll post some photos later, but as Mark said, you need to research the NADS mods via an Aussie forum like nissanpatrol.au.com
That boost gauge is no good whatsoever.
Get one that reads psi not bar and one with boost only scale would be even better. You don't need the vacuum scale.
Psi is the common language when comparing boost readings on any Patrol mod.
Go have a look on the above forum and you'll see how big a deal these mods are to your vehicle and why they have to be done right first time.
Not preaching here Jay, just wanting to help.:thumb2
Will post later today
Happy new year
Best
Davey
 
Jay, I get the feeling you're rushing it....
I'll post some photos later, but as Mark said, you need to research the NADS mods via an Aussie forum like nissanpatrol.au.com
That boost gauge is no good whatsoever.
Get one that reads psi not bar and one with boost only scale would be even better. You don't need the vacuum scale.
Psi is the common language when comparing boost readings on any Patrol mod.
Go have a look on the above forum and you'll see how big a deal these mods are to your vehicle and why they have to be done right first time.
Not preaching here Jay, just wanting to help.:thumb2
Will post later today
Happy new year
Best
Davey



I've seen daveys truck and it's awesome. And done right. Theses engines are awesome if done right but mega money and hassell if done wrong. We're just trying save you lots of agro
 
Jay, I get the feeling you're rushing it....
I'll post some photos later, but as Mark said, you need to research the NADS mods via an Aussie forum like nissanpatrol.au.com
That boost gauge is no good whatsoever.
Get one that reads psi not bar and one with boost only scale would be even better. You don't need the vacuum scale.
Psi is the common language when comparing boost readings on any Patrol mod.
Go have a look on the above forum and you'll see how big a deal these mods are to your vehicle and why they have to be done right first time.
Not preaching here Jay, just wanting to help.:thumb2
Will post later today
Happy new year
Best
Davey


Excellent, I'll take all the help I can get. :thumb2

I only used that gauge because I had it to hand.

I'll plumb everything back as it was and await direction from a pro! :bow
 
Just echoing what Mark and Davey said, check the Aussie forums for info on setting up the dawes (you'll benefit from fitting a needle valve too).

Again echoing Mark, get a catch can fitted asap and once you have the dawes set up get your egr blanked off. I went down an alternative route to the dawes but fitting a catch can and blanking the egr was one of the best things I've done and I'm confident my 3.0 is now future proofed :thumb2
 
Just echoing what Mark and Davey said, check the Aussie forums for info on setting up the dawes (you'll benefit from fitting a needle valve too).

Again echoing Mark, get a catch can fitted asap and once you have the dawes set up get your egr blanked off. I went down an alternative route to the dawes but fitting a catch can and blanking the egr was one of the best things I've done and I'm confident my 3.0 is now future proofed :thumb2

Blanking the EGR's I understand, did it on my last 4x4... Where do I start with the catch can?
 
Just echoing what Mark and Davey said, check the Aussie forums for info on setting up the dawes (you'll benefit from fitting a needle valve too).

Again echoing Mark, get a catch can fitted asap and once you have the dawes set up get your egr blanked off. I went down an alternative route to the dawes but fitting a catch can and blanking the egr was one of the best things I've done and I'm confident my 3.0 is now future proofed :thumb2

Presume I could do all this on Granddads 3.0 too Rob? I was very interested in what you've done, remember listening to you in awe on one of the meets, certainly fills me with confidence that you've messed with yours so much anyway.
 
Blanking the EGR's I understand, did it on my last 4x4... Where do I start with the catch can?

Have a look through my project thread and it should be in there bud. The catch can is fitted in the crankcase breather pipe before it joins the air intake pipe, there's a lot of oil mist enters the air intake through the breather and the catch can removes a lot of it so less oil ends up in the intercooler.
 
Have a look through my project thread and it should be in there bud. The catch can is fitted in the crankcase breather pipe before it joins the air intake pipe, there's a lot of oil mist enters the air intake through the breather and the catch can removes a lot of it so less oil ends up in the intercooler.

This is the can you use right?

http://www.mfeuk.co.uk/provent-200/
 
Presume I could do all this on Granddads 3.0 too Rob? I was very interested in what you've done, remember listening to you in awe on one of the meets, certainly fills me with confidence that you've messed with yours so much anyway.

Cheers bro, would like to think it's not the blind leading the blind :lol

Yeh this could all be done to your Grandad's Terrano. Depends how much he wants you to mess with it :nenau Definitely fit a catch can bro and I'd recommend blanking the egr. I've heard mixed info on blanking the egr on the 3.0 Terrano, some seem to get away without needing to do anything to prevent the overboost issues while others immediately find the overboost protection starts kicking in (maybe due to the Terrano being lighter than a Trol and therefore less strain on the engine?).

Personally I wouldn't want to risk the overboost happening though :nenau

The other thing I would do is get the throttle body off and give it a clean :thumb2
 
Deffo...to cleaning the throttle body.
Jay
Here's my Provent
Don't be afraid to buy from Oz. My can was cheaper from Sydney than getting one sent from from Guildford!
 

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Presume I could do all this on Granddads 3.0 too Rob? I was very interested in what you've done, remember listening to you in awe on one of the meets, certainly fills me with confidence that you've messed with yours so much anyway.

I realise you COULD do all these mods to your Grandads truck, but do bear in mind that there are a LOT of us with late model 3.0ltr Terranos that are running just fine without any mods. I realise that there were issues with the early 3.0, but I understand that this problem doesn't exist with later 3.0ltr lumps.

Just my thoughts.

:thumbs
 
Deffo...to cleaning the throttle body.
Jay
Here's my Provent
Don't be afraid to buy from Oz. My can was cheaper from Sydney than getting one sent from from Guildford!

Awesome, Thanks for the info... Catch Can has now made it to the top of my shopping list! :thumb2

Back to the boost gauges & dawes valve.... I had looked at a couple of diagrams, but I think I'll put it on the back burner for a bit!
 

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