I was pulling some parts out of my KJ today, and noticed the intake (plastic) has no resonators under it. Similarly, the MAF sensor has a massive resonator under the tube in my KH that has been factory blanked off in the KJ.

Why were they there? what is the resonators (that's what I have called it anyway feel free to correct me) purpose on this intake if it has been deleted later on? Cost cutting?

In getting down to the nuts and bolts of the KJ disassembly, I have noticed lots and lots of changes made in between the KH and KJ. Even simple little things like the soundproofing is all rubber backed in my car and just carded foam in the KJ.

Also the KJ has lots more foam pads behind the door trims.

Mike

Try a search, this has been covered a lot

i know the foam was partly to improve safety in a side impact collision. also, i notice on my te, things that later models dont have. ie double door seals, rubber sound proofing, rubber vibration reducer on the driver side engine mount, chrome window surrounds as standard on an exec...... i am sure it was cost cutting in the end.

edit, te also had 3 resonators, one on the snorkel, one under the maf, and a small on the top of the tube.

Try a search, this has been covered a lot

Thanks mate. I wasn't 100% sure what to search for, but I suppose a statement of useless words will help. Thanks for clearing that up.

Irony has it that the search I performed brought up this thread at the top.

Mike

Mitsubishi tried many ways to perfect the intake in the way of smooth air flow, and intake noise, of which air resonances affect both, both of these against the almighty ruling budget.
I would bet my bottom dollar the earlier intake intakes are the smoothest flowing and quietest...

I ran my own little investigation into tuned intakes as I could not find find any info on the design anywhere... Its where compromises cut into the magna budget throughout their advancement...;) like Brakes, lighting, where sufficient was good enough...

Ok cool. I shall reinstall the old ones. They seemed cumbersome. But smooth flowing air is obviously important.

Mike

I look for my result, you will, no doubt, find it interesting to say the least.


Its here (http://www.aussiemagna.com/forums/showthread.php?t=89659&p=1414827&viewfull=1#post1414827), brilliant investigating, if I can say so myself lol

The magna intakes are rather loud, I believe the early models had 3 resonators to try and shut this up. Later models improved intake flow but increased noise by removing resonators. At this point it didn't matter as mits was going for the sporty image (cars coming with tiptronic etc...).

I disagree, Noise and resonances are interruptions and interferances, all detremental to airflow.

Respectfully...;)

I disagree, Noise and resonances are interruptions and interferances, all detremental to airflow.

Respectfully...;)

Yes, I agree. A quiet intake is a smooth flowing intake. All you need to do is model the intake on a computer, and look for standing waves. That's where you put the resonators, to dampen the standing waves so they don't produce back pressure which can affect total (maximum) flow and even the MAF function. Of course, if you change the shape of the inlet tract, compression, engine size, etc the standing waves shift a bit - hence the different designs. Tell this to the boyz with CAI and after market filters though, and you get " Nah! More noiz = more powa!"

Lets put it this way, as I am not an engineer on the Mits Team, the explanations for tuned lengths remained a mystery despite efforts to look for explanations.

And, yes, I agree, that I may very well be incorrect. I ain't seen any real explanation to support reasons for their deletion, despite the need for their creation in the first place.....

All the same, here is some great scientific jargon that explains why they were created, Enjoy (http://www.aussiemagna.com/forums/showthread.php?t=89659&p=1414827&viewfull=1#post1414827)

Edit.....

****, I'm a tosser sometimes, but I love this forum...
SH00Ty, not taking himself too seriously lol.

Yes it sure was cost cutting as Mitsubishi Australia was going broke, I bought a KH Verada a year ago makes me think I should have bought a KE, how stupid of me to think a later model was a better car.


i know the foam was partly to improve safety in a side impact collision. also, i notice on my te, things that later models dont have. ie double door seals, rubber sound proofing, rubber vibration reducer on the driver side engine mount, chrome window surrounds as standard on an exec...... i am sure it was cost cutting in the end.

edit, te also had 3 resonators, one on the snorkel, one under the maf, and a small on the top of the tube.

Yes it sure was cost cutting as Mitsubishi Australia was going broke, I bought a KH Verada a year ago makes me think I should have bought a KE, how stupid of me to think a later model was a better car.

The H-series were some of the best. It introduced the BEM and standardized the 3.5L.

Well maybe I bought the best model MAGNA/VERADA I was thinking of selling it to get the KJ with the 5 speed tiptronic but maybe that would be a bad move.


The H-series were some of the best. It introduced the BEM and standardized the 3.5L.

Lets put it this way, as I am not an engineer on the Mits Team, the explanations for tuned lengths remained a mystery despite efforts to look for explanations.

And, yes, I agree, that I may very well be incorrect. I ain't seen any real explanation to support reasons for their deletion, despite the need for their creation in the first place.....

All the same, here is some great scientific jargon that explains why they were created, Enjoy (http://www.aussiemagna.com/forums/showthread.php?t=89659&p=1414827&viewfull=1#post1414827)

Edit.....

****, I'm a tosser sometimes, but I love this forum...
SH00Ty, not taking himself too seriously lol.

It's a shame there are deleted posts in the link you provided. I remember debating with a few members about the topic. http://planetsoarer.com/resonator/resonator.html, madmagna also uses this refference in his own personal webpage. Volumetric efficiency.

Well maybe I bought the best model MAGNA/VERADA I was thinking of selling it to get the KJ with the 5 speed tiptronic but maybe that would be a bad move.

Would likely be cheaper to convert to 5sp.

It's a shame there are deleted posts in the link you provided. I remember debating with a few members about the topic. http://planetsoarer.com/resonator/resonator.html, madmagna also uses this refference in his own personal webpage. Volumetric efficiency.

Good Post, yes, its widely discussed topic, but, so far as I have seen, my previous post is the only discussion with recognized informartion on the scientific theory into their existance....
It appears to be another first for AMC....

Hmm, My KH has the one under the intake, one massive one after the MAF and the small triangular one above the Lower one. making 3 all together.

This KJ just has the small triangular one on top of the pipe.

I shall put my old ones back again! Seems to be of benefit.

Cheers guys. Just the info I was chasing.

Mike

For your reference, the TW has only one, one fitted atop the intake tubing after the MAF, the one fitted below the Pizza spatula and the one fitted below, after the MAF are deleted.

Interesting read this is. It reminded I do not have any resonators on my intake due to I believe the lpg conversion. It seems the installers replaced the hose between the maf sensor and the throttle body to fit the lpg mixer ring. I was just thinking the other day, after sitting in a mates similar TJ magna, that mine seemed noisier than usual - esp. from the front. I do have a vr-x rear muffler but they aren't exactly loud unless the engine is past 3500rpm and you have the windows down. So I'm quite certain that the reasonators do make a difference - I'm not really fussed because I quite like the noise of my engine but any future buyer may not agree. That being said - I've sat in newer cars that are as noisy as mine so I'm not massively fussed.