I know this might sound a little stupid to sum, but on the intake pipe, there are 2 resonators one on top and one on the bottom. Pull these off and replace them with plugs (Avalible from camping shops etc) this increases the airflow, doesnt affect the ECU and gives a bit more go to your Magna, any queries ask me :D

is this on TR's? what plugs should they be replaced with? got pics?

I think he's talking about the 3rd gen magnas. I don't know if 2nd gens have the same resonator setup.

And for the word "plug" you can substitute "gatorade bottle lid".

Don't know how it's going to increase air flow though.. the air doesn't flow through the resonators, it flows past them.

yeah we know this.. i dont think it gives you extra power though.. just more induction noise....

:nuts: gatorade lids hey, well why dont I just use a milo tin as an exhaust :nuts:

:nuts: gatorade lids hey, well why dont I just use a milo tin as an exhaust :nuts:
gatorade lids fit into the hole, you'll find there are more then one person that has used these lids.

i plugged my top one up with just some lid i found, bottom one use's an extra injector along with another fuel with a custom plug

Welcome to the forums :D ... Just some advice, your first and only 2 posts are new threads... take some time to mosey around, use the search feature... check out the FAQ page in my sig. etc... there is a lot of information to be found and many things we have discussed before... (not saying you cant talk about it, but there are recent threads which cover some of these things)

The same topic you are talking about was discussed recently in this thread

http://www.aussiemagna.com/forums/showthread.php?t=18641

I typed "resonators" into the search screen.

Enjoy :D

Smokey Kebab... I have used a Milo Tin for an Exhaust tip and a Beer can as a Hot dog Muffler..

Removing the intake resonators gives you more Induction noise but reduces l air available when you put your foot down, it sucks the air out of the resonators first..
Kinda like a Temp air storage system..

Removing the intake resonators gives you more Induction noise but reduces l air available when you put your foot down, it sucks the air out of the resonators first..
Kinda like a Temp air storage system..
If it was a temp air storage system, it would be called something like that but they're called resonators. They reduce resonant frequencies at certain rpm's. These frequencies can disrupt airflow.

i had to remove the big one to fit my cai in, just used a milk bottle cap, fits perfectly :P. Induction noise sounds awesome, dunno if it effects power or not.

Damn.. it seems the average age on this forum is going down more and more. The original poster is 16 years old. Do you even have your L's yet mate? Anyway the link HyperTF gave explains it in a bit more detail. I personally wouldn't remove the resonators but each to their own as they say.

I read an article on AutoSpeed (http://www.autospeed.com/) about intake resonators. It concluded that while removing them and plugging the hole probably wouldn't have any negative side effects (except for increased noise due to resonance) it probably wouldn't have any positive side effects either.

Each to their own.

I read an article on AutoSpeed (http://www.autospeed.com/) about intake resonators. It concluded that while removing them and plugging the hole probably wouldn't have any negative side effects (except for increased noise due to resonance) it probably wouldn't have any positive side effects either.

Each to their own.

On the same note, I read an article in HOT4's a few years ago and they found dyno proven results that removing them reduces power on a 1.5l Mirage, and changed the power deliver on the graph, they also experimented with different size resonators and found larger ones on that car increase low and high eng torque delivery :P

On the same note, I read an article in HOT4's a few years ago and they found dyno proven results that removing them reduces power on a 1.5l Mirage, and changed the power deliver on the graph, they also experimented with different size resonators and found larger ones on that car increase low and high eng torque delivery :P

with the larger one the mouse had a bigger wheel to run on

with the larger one the mouse had a bigger wheel to run on

Yes, but becuase his name was RJL25, he couldn't work out witch direction to run in

Yes, but becuase his name was RJL25, he couldn't work out witch direction to run in

:bowrofl: ill pay that

btw it was a JOKE pointed at mirages, no offence was intended towards you just incase you took any

If it was a temp air storage system, it would be called something like that but they're called resonators. They reduce resonant frequencies at certain rpm's. These frequencies can disrupt airflow.

You're correct there again, Brother Redav. They certainly do not act as air suppliers and engines do not suck air - the negative pressure created by descending piston is filled/replaced by surrounding air pressure. Understandably it appears that suction is there - but the speed of air filling a vacuum is far greater than the piston's speed.
The intake resonators reduce induction noise only. Not to be confused with tuned lenght intake manifolds, which also work on the same resonance principle, but have much more important task.
What task? Imagine - air flowing in thru TB, going thru plenum and intake manifolds and then past valves. Then valves close - bang, air stops flowing and bounces "backwards" towards the incoming air. Auch! Hence the tuned lenght to assist in this matter. Somewhat logical actually.

You're correct there again, Brother Redav. They certainly do not act as air suppliers and engines do not suck air - the negative pressure created by descending piston is filled/replaced by surrounding air pressure. Understandably it appears that suction is there - but the speed of air filling a vacuum is far greater than the piston's speed.

It's nit picky, I know, but what else is suction but air flowing from a region of higher pressure to a region of lower pressure?

A vacuum cleaner sucks because it has a fan blowing air out the back of the case which creates a low pressure space in front of the fan and the only way to equalize the pressure is for air to be sucked up the nozzle.

Same with sucking through a straw. You create low pressure in your mouth by drawing air out of it into your lungs.

An engine draws air by creating a low pressure space in the cylinder which gets filled through the only opening - the intake valve. That's sucking, dude :D

It's nit picky, I know, but what else is suction but air flowing from a region of higher pressure to a region of lower pressure?

A vacuum cleaner sucks because it has a fan blowing air out the back of the case which creates a low pressure space in front of the fan and the only way to equalize the pressure is for air to be sucked up the nozzle.

Same with sucking through a straw. You create low pressure in your mouth by drawing air out of it into your lungs.

An engine draws air by creating a low pressure space in the cylinder which gets filled through the only opening - the intake valve. That's sucking, dude :D
Now that is the most logical explanation I have seen so far... thanks! There are so many theories on what the resonators tasks is... but primarily the definition of a resinator is:

resonator: A hollow chamber or cavity with dimensions chosen to permit internal resonant oscillation of electromagnetic or acoustical waves of specific frequencies.

I still doubt it has very much more to do with tuning down the amount of noise being emitted from the engine bay... I believe that it is a typical trait of japanese design, or any manufacturer in general, to reduce as much as possible the amount of noise being emitted...

Whereas us keen modding folk come along wanting as much noise we can muster so we flush the 1000's of dollars of research down the toilet by shoving Mc Cormick herb shaker, and milk bottle lids in the holes...lol

Have em in or out the changes are minimal

Just my POV lol

sounds exciting...i've been waiting to do this, as i've collected a few powerade and getorade bottle lids now lol

so how the hell do i remove the snorkel? to start off with...how do i take it off? the little round black plugs above the radiator looksy hard to remove...how do u take them off without breaking them? (I broke one of them already, lol) yeah....so how do i take it all off n stuff??

sorry for the hijack person...enjoy ur stay at AM!

so how the hell do i remove the snorkel? to start off with...how do i take it off? the little round black plugs above the radiator looksy hard to remove...how do u take them off without breaking them?

The snorkel to the airbox?

Those clips screw out don't they? lol The snorkel just pulls out of the airbox once you've unattached it off the top of the radiator.

The snorkel to the airbox?

Those clips screw out don't they? lol The snorkel just pulls out of the airbox once you've unattached it off the top of the radiator.

the snorkel i meant...lol


yeah, so u just....YANK IT OUT?!! off the top of the radiator?

the snorkel i meant...lol


yeah, so u just....YANK IT OUT?!! off the top of the radiator?


Noo! The three or four black plugs holding it on to the body have a phillips head cut in the top of them don't they? Get into them with a screw driver and they should come out no probs.

once the plugs have been removed, then you can yank it out of the airbox :D

eek wtf? how can u not work it out simply by looking at the it!! lol

Most of this thread is about sucking ...... and it sucks.

Taking the advice of a 16yo is generally something to do with a hand full of salt. Why would you be possesed to take something like that off in the first place?

I am always wary when someone says "Hey I removed this and with no other backup data except my own perception I think it's heaps better".

eek wtf? how can u not work it out simply by looking at the it!! lol

yeah, it looks like a round plug with a little round thing in the middle...its not like i can stick anything at it like a finger or a screwdriver....a stick maybe :confused:

i'll have a poke around there some time when i decide to upgrade my battery cables...

I think he's talking about the 3rd gen magnas. I don't know if 2nd gens have the same resonator setup.

And for the word "plug" you can substitute "gatorade bottle lid".

Don't know how it's going to increase air flow though.. the air doesn't flow through the resonators, it flows past them.


I've got 2 powerade bottle lids sitting there waitnig to go in when I get a chance. Better than milk/oj bottle lids as they are already black :D

:bowrofl: ill pay that

btw it was a JOKE pointed at mirages, no offence was intended towards you just incase you took any

Nah dude, was just playing allong :D

So in general we agree, that the intake resonators are installed to reduce intake noise.

So if we where to play around with different sizes we could cancel out of allow certain frequencies of sound to be heard. So in effect we can (albiet limitedlly) tune the sound of our intake :badgrin:

So in general we agree, that the intake resonators are installed to reduce intake noise.
No, it's not for noise. It's for resonant frequencies dissrupting air flow. Noise may be a byproduct.

yeah, it looks like a round plug with a little round thing in the middle...its not like i can stick anything at it like a finger or a screwdriver....a stick maybe :confused:

i'll have a poke around there some time when i decide to upgrade my battery cables...

Actually round, or hexagonal with straight edges? Could be an alan-key socket?

I'll have to go and check now... :confused:

No, it's not for noise. It's for resonant frequencies dissrupting air flow. Noise may be a byproduct.

By stating that these resonant frequencies before the throtle body disrupt air flow, you are allso inferring that they have an impact on the VE of an engine.

This statment is at odds with THIS (http://autospeed.drive.com.au/cms/A_1969/article.html) article.

OK I want Pro's and Cons of removing them done by a resident Engine Techie
If removing them cause no negative side effects other then sound I want them listed..
Are they going to knock you back on rego for it ??
3rd Gen Specifically

By stating that these resonant frequencies before the throtle body disrupt air flow, you are allso inferring that they have an impact on the VE of an engine.

This statment is at odds with THIS (http://autospeed.drive.com.au/cms/A_1969/article.html) article.
I'm just stating what our fluid dynamics people told me. This is their core business. Whilst I'm not picking on Autospeed, (there's a lot of good stuff in there), they are a jack of all trades, master of none.

**** so we flush the 1000's of dollars of research down the toilet by shoving Mc Cormick herb shaker, and milk bottle lids in the holes...lol

Have to love this statement again - pops up frequently.
Car manufacturers spend millions blaa blaa - and then they install tyres like RE 92 and many other low quality solutions in to cars. And then we go and change them all to make the car better ie better tyres, improved suspension and stability etc etc.
Makes one wonder....
But blocking intake resonator holes and whacking 3 red stripes on the side of the car makes it definitely much faster! And that is true - whether it sucks or not. :cool:

Whilst I'm not picking on Autospeed, (there's a lot of good stuff in there), they are a jack of all trades, master of none.


Heheheh true :D

I wasn't dis-agreeing, long ago I read a scentific article on intake resonators and how they smooth airflow out within the intake tract. I've since tryed to find the article but failed, it had nice animations of pressure veriations and restrictions within an intake and showed how propperlly placed resonators could reduce the restricion promoting better flow :P

i had to remove the big one to fit my cai in, just used a milk bottle cap, fits perfectly :P. Induction noise sounds awesome, dunno if it effects power or not.

got a pic? i mite do the same.

Two more observations:

They look stupid. Kind of like they didn't design something properly in the first place and rather than re manufacture the whole intake system they stuck this childs toy on instead.

And it gets in the way of the strut brace and rattles against it.

Other than that I love them. :doubt:


.

just had a look at mine, would a milk bottle cap with some electrical tape hold in there? i dont want nothin sucked into my TB :P

might do it tonight just to see what, if any, difference it makes

This has been covered heaps of times before...people will argue black and blue for and against.

It's quite simple tho...just try it. It's reversible. ;)

definately not an allen key socket.

it looks like a freaking weirdo plug that you can't undo without breaking. perhaps attack it with a heat gun before removing?! lol

there are a few more parts bolted on somewhere aren't there?

http://img237.echo.cx/img237/3181/borkoengine2pi.th.jpg (http://img237.echo.cx/my.php?image=borkoengine2pi.jpg)

can some1 draw instructions on the above pic and post? i wanna have this bottle cap mod too.

http://img237.echo.cx/img237/3181/borkoengine2pi.th.jpg (http://img237.echo.cx/my.php?image=borkoengine2pi.jpg)

can some1 draw instructions on the above pic and post? i wanna have this bottle cap mod too.

you already dont have an airbox resonator. Only the V6 magnas have them

you already dont have an airbox resonator. Only the V6 magnas have them
Sorry this is incorrect.
We have 1 small one and 1 big one. I had to remove the big one as it was in the way of my CAI. I have circled where you will find them, they are directly under the MAS.
Also why use tape to hold the bottle cap in? you should just use the metal clamp that holds the resonator on :).

cheers i'll try doing that tonite.

Sorry this is incorrect.

:owned:

my bad

i hav a TR can i take the resonators off without affecting my engine? does it sound like a pod filter like a growling sound with them removed?

it doesn't really have any adverse effects. it makes the induction noise slightly better, and in my case slightly reduced low end (which I had very little of already) and slightly increased high end.