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Generation 3 Pajero NM - NP Models 2000 - 2006

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  #1  
Old 29-04-10
Photocaro Photocaro is offline
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Default Intake pipe modules?

Hi all,

Been looking under the bonnet at the intake pipe arrangement, to get better airflow into the V6 and I have noticed a couple of boxes/modules that are piped into the intake pipe, but they have no pipes or connections to them! Does anyone know what they are for or what they do? I would have thought a straight pipe into the engine would be a far better way of getting air in! They are located between the air filter and the throttle body.

Perhaps they stall the air a bit to help with emissions? If anyone can help that would be greatly appreciated!
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Old 29-04-10
hyper 8 hyper 8 is offline
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I was looking at the same thing tonight while replacing the lower half of my air box after a back fire, dam lpg. Would be good to know if they are needed or not as i need to modify the intake pipe as it is to long with the lpg mixer. If only i had the 3grand to convert it the vaper injection
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  #3  
Old 30-04-10
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marcthelegend marcthelegend is offline
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I took off the resonator (small box on the underseide of the intake) and replaced it with the lid of a mccormack spice jar, perfect fit and under low revs makes a nice deep noise

Cheers

Marc
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05 NP GLX 3.8 Auto. 2" Lovell/Bilstein Lift, ARB Deluxe Winch Bar, Granke mk3 12,000lbs winch, Uniden UH015sx, HID spotties, Roof mounted light bar, Work lights, Upgraded stereo, Tinting, 2.5t tow, dual battery setup (homemade), Radar Renegade tyres, wired up dummy lights, Bushskinz Sump/Intercooler plates, home-made diff breathers (front and back) and a cheap ebay snorkel.

To-do:
brake upgrade, oil seals (again!!)
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  #4  
Old 30-04-10
Photocaro Photocaro is offline
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Ok, I been doing a bit of googling on this and turns out they are resonators. The function is purely to make your engine sound quieter and apparently have no impact on performance whatsoever!

I do like the thought of making the engine sound angrier, but I think I will do that with an exhaust
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  #5  
Old 01-05-10
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marcthelegend marcthelegend is offline
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I found that interesting, I too read they have no impact on performance, however, lets say you breathe air in through a straw, should be pretty easy, now imagine adding resonators to it, it would be much more difficult, or so I think??

Air would travel better in a straight line rather than having to go into this container and then out again.

The sound isnt that obvious though (certainly wouldnt stack up to an exhaust), initially I was a little dissapointed, I stole the idea from aussiemagna.com, it was a common mod to remove the resonators for a 'thoatier' sound, so I did the same and the only difference I noticed was a 'roar' under low-rev slow acceleration, oh and the complaining of my partners grandmother because one of her spice jars now has no lid lol, hmmm I wonder where it went? haha

Cheers

Marc
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05 NP GLX 3.8 Auto. 2" Lovell/Bilstein Lift, ARB Deluxe Winch Bar, Granke mk3 12,000lbs winch, Uniden UH015sx, HID spotties, Roof mounted light bar, Work lights, Upgraded stereo, Tinting, 2.5t tow, dual battery setup (homemade), Radar Renegade tyres, wired up dummy lights, Bushskinz Sump/Intercooler plates, home-made diff breathers (front and back) and a cheap ebay snorkel.

To-do:
brake upgrade, oil seals (again!!)
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  #6  
Old 01-05-10
Photocaro Photocaro is offline
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HAHA nice one!! Well I would have thought just a straight through pipe would work better as well, but apparently not! I actually have 2 of them on my NP. Is the sound much better or does it sound poo? I am seriously considering a K&N as well which will add even more noise if I did both. You know much about K&N or Uni filters?
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  #7  
Old 01-05-10
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Mine only has one resonator? or should I say had, the difference in note is minimal unless your doing low-rev acceleration, which given the size / weight of the pajeros does not happen very often!

Had a FRAM air filter in my ford (and still do) however I noticed no real improvement anywhere? though I never really tested for fuel economy or such, just for note and acceleration, however when I added a second intake, that made a large difference to the note and made a verrry nice roar to it and combined with the filter felt like it had more power. But thats the ford, not the pajero!

Cheers

Marc
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05 NP GLX 3.8 Auto. 2" Lovell/Bilstein Lift, ARB Deluxe Winch Bar, Granke mk3 12,000lbs winch, Uniden UH015sx, HID spotties, Roof mounted light bar, Work lights, Upgraded stereo, Tinting, 2.5t tow, dual battery setup (homemade), Radar Renegade tyres, wired up dummy lights, Bushskinz Sump/Intercooler plates, home-made diff breathers (front and back) and a cheap ebay snorkel.

To-do:
brake upgrade, oil seals (again!!)
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  #8  
Old 03-05-10
redturboeclipse redturboeclipse is offline
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I have a montero, equivilent to your pajeros.. here in the USA..

yea those are just silencer/resonators.. its common so things are quiet..

unfortunately just like al over the world, pajero/montero aftermarket support SUCKS!

I still wanted to make an intake , so i did..



As far as performance difference? It does have better throttle response, and sounds more aggressive, but dont think it added that much more power.
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  #9  
Old 05-05-10
C&S Evo7 C&S Evo7 is offline
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Our shoguns here in the UK use the quad cam 3.5 so have a slightly different arrangement but basically the same, I removed the top of the airbox and connected the airflow meter to an EVO V111 meter adaptor so i could use a cone filter, I also removed the resonartor, the only thing i would say is it seems to have reduced throttle response, this may be due to the amount of air on the engine side of the meter is now less than before so when you hit WOT you get a moment where the AF ratio is incorrect. when i replace the resonator this seems to go away.
HOWEVER, it sounds so good without the resonator it stays off.
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