EdgeLectrics
Member
Has anyone fitted a Dawes valve set up to their navara? Or is it only necessary for the vnt zd30?
3.0 litre EGR/Butterfly/Swirl Mod
- Thread starter stubbsy351
- Start date
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not needed.
no vnt turbo on d22 and d40 has a fairly decent control system. its used on the patrol zd30 because its vnt control system is crap.
EdgeLectrics
Member
That's what I was thinking, I just wanted confirmation really. The rest of the NADS modifications seem pretty comprehensive.
Fraser72
Member
Happy moder
Well did my EGR/butterfly/swirl mod a fews weeks ago now, and I'm very happy with the results. Seems to have more low down torque less lag on take off.
So big thanks to the guys that put this thread up.
Fraser.
Well did my EGR/butterfly/swirl mod a fews weeks ago now, and I'm very happy with the results. Seems to have more low down torque less lag on take off.
So big thanks to the guys that put this thread up.
Fraser.
Steve-D22
Member
Tip for removing vacuum hoses
I done this mod a few weeks ago and haven't looked back. Didn't notice any power increase in normal driving but definitely did when towing.
The vacuum hoses are difficult to remove but if you push the end with a flat blade screwdriver whilst pulling they come off easier. You may just have to carefully cut them off but there's plenty to play with to do the mod. Someone else said to turn them around which helps get a tight fit. You could also buy a small length of new hose to get a tight fit.
I done this mod a few weeks ago and haven't looked back. Didn't notice any power increase in normal driving but definitely did when towing.
The vacuum hoses are difficult to remove but if you push the end with a flat blade screwdriver whilst pulling they come off easier. You may just have to carefully cut them off but there's plenty to play with to do the mod. Someone else said to turn them around which helps get a tight fit. You could also buy a small length of new hose to get a tight fit.
Quick question about EGRs in general.
I found out about this mod a few days ago when I discovered this forum and am interested in doing it myself, however, I'm still unsure whether EGR valves are standard to all diesel engines or just Turbocharged engines.
I have the 2.5 ltr 2003 D22 that was naturally aspirated (it still pulls like a champ, compared to my friends' 1.0ltr hatchbacks anyway) and was wondering if this is a mod I can do to my Navara.
I'm hoping it is, I love routing around in the engine bay, even if it's for something as simple as changing a bulb.
Also, any other suggestions of simple engine mods (or non engine for that matter) would be very welcome.
Alfie
I found out about this mod a few days ago when I discovered this forum and am interested in doing it myself, however, I'm still unsure whether EGR valves are standard to all diesel engines or just Turbocharged engines.
I have the 2.5 ltr 2003 D22 that was naturally aspirated (it still pulls like a champ, compared to my friends' 1.0ltr hatchbacks anyway) and was wondering if this is a mod I can do to my Navara.
I'm hoping it is, I love routing around in the engine bay, even if it's for something as simple as changing a bulb.
Also, any other suggestions of simple engine mods (or non engine for that matter) would be very welcome.
Alfie
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EGR is generally easy to spot. Look for a pipe that heads from the exhaust to the intake manifolds.
Hey guys wanting to do this mod to my nav but when i look at buying the blanking plate they talk about it possibly putting the car into limp mode if i dont have a dawes valve installed. Do i need one of these or does re running the vacume hoses do the same thing?
subz123
Member
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Depending what year d40 you have i think the boys said 2011 on have the egr sensor dawes valve would bot help you at all. Only thing that will work is a 10mm hole in the plate
RWW
Member
RWW
Member
Guess not? It's just the vacuum tubes that are confusing me..
Rabbid-chop
Member
fourocker
Member
^^^ I did the same, was all over in a minute.
RWW
Member
No extra T pieces or hose required?
If I mess it up, will there be a sign, ie unable to start or rough idle etc??
If I mess it up, will there be a sign, ie unable to start or rough idle etc??
RWW
Member
Well I completed this mod today, like everyone said easy once you get into it.
Only issue were my vacuum lines were pretty old and broke easily when removed, quick trip to Supercrap and new vacuum lines were needed.
Didn't unplug the plug everyone mentions, everything seems to be running well. Don't have any gauges to compare to previously.
Only issue were my vacuum lines were pretty old and broke easily when removed, quick trip to Supercrap and new vacuum lines were needed.
Didn't unplug the plug everyone mentions, everything seems to be running well. Don't have any gauges to compare to previously.
fourocker
Member
Good to hear mate !
Hey guys and gals
I did the egr block and rerouted the vacuum lines, and double and triple checked to make sure I did it right, and yet the cars over all performance seems to be worse, it doesn't spool up like it used to and I find I have to hold it in gear for longer.
Not sure if it's just my imagination or not but it is noticeable.
I have the zd30, no other mods
Anyone else had this happen? Only thing I could think of is air leaking from the blanking plate (which is at the intake manifold end)
I did the egr block and rerouted the vacuum lines, and double and triple checked to make sure I did it right, and yet the cars over all performance seems to be worse, it doesn't spool up like it used to and I find I have to hold it in gear for longer.
Not sure if it's just my imagination or not but it is noticeable.
I have the zd30, no other mods
Anyone else had this happen? Only thing I could think of is air leaking from the blanking plate (which is at the intake manifold end)
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