KOHO
22-05-2010, 03:25 PM
A geeky analysis for a saturday afternoon...enjoy = )
Introduction
The MUGEN Hi-Performance Air Filter Civic FD1 is designed to allow higher induction of air while still efficiently cleaning the air with the OEM induction box. This system reduces pressure loss by 50% when compared to the OEM air filter.
Many of the fellow FDs have tried this drop-in panel filter. Mixed reviews from those who have tried - some claimed better response, smoother ride but no improvement of sound. others said its just an overpriced filter and you are paying for the "Mugen" brand and K&N is a much better alternative.
http://i192.photobucket.com/albums/z165/Grooving_house/FiltrodeaireMugen.jpg
Aim
1) to test out the Mugen air filter
2) compare the sounds of the stock vs. mugen (a failed attempt as I have no idea how to analyze sound waves)
3) to give a personal opinion on the subjectivity of whether the mugen filter improves overal performance
4) i am still a "newcomer" (*hint hint* lol)
Method
- test drive with stock vs mugen (subjective testing)
- video and record the sound of stock vs. mugen (both from start with gradual acceleration to 4000rpm and back to idle)
Results
Stock filter
http://www.youtube.com/watch?v=gh30tqACAi0
Mugen Filter
http://www.youtube.com/watch?v=4QOMbEvVPOs
Stock soundwave analysis
http://sphotos.ak.fbcdn.net/hphotos-ak-ash1/hs506.ash1/29917_545086282751_219001630_32695845_198159_n.jpg
Mugen soundwave analysis
http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs546.snc3/29917_545086272771_219001630_32695844_6298014_n.jp g
Discussion
Unfortunately I have no idea how to combine 2 sound waves and analyse the frequency graphs. So I have attached the individual frequency analysis as well as the videos for you to decide.
In terms of any noticeable changes, I feel the response is better especially at higher revs (above 3000rpm) and the ride is slightly better. No longer do I have to be heavy-footed at lower revs. No difference in sound whatsoever (you probably want a proper intake system, anyways).
Conclusion
I think the "placebo effect" plays a big role. Having spent close to $180 on the filter, psychologically, I would want to think its doing something. Some may ask why didnt I get the K&N. Well, I have qouted $158 by Repco Camperdown. So for a difference of $22, I might as well get a Mugen instead.
I think its a good replacement filter to the stock ones. But if you after higher gains and louder noise, other "toys" will be needed to satisfy that desire. Overall, I think I will drive with it since I am going to sell it at the end of the year when I am done with my studies. Will I do something else? I am contesting the idea of injen cai or simota carbon charger (CB-111). If I do fix them up, I will do a better analysis than this piece.
Thanks for your patience.
your friendly neighbourhood geek
P/S: if anyone can read japanese, it would be great to translate whats written on the graph provided by mugen
Introduction
The MUGEN Hi-Performance Air Filter Civic FD1 is designed to allow higher induction of air while still efficiently cleaning the air with the OEM induction box. This system reduces pressure loss by 50% when compared to the OEM air filter.
Many of the fellow FDs have tried this drop-in panel filter. Mixed reviews from those who have tried - some claimed better response, smoother ride but no improvement of sound. others said its just an overpriced filter and you are paying for the "Mugen" brand and K&N is a much better alternative.
http://i192.photobucket.com/albums/z165/Grooving_house/FiltrodeaireMugen.jpg
Aim
1) to test out the Mugen air filter
2) compare the sounds of the stock vs. mugen (a failed attempt as I have no idea how to analyze sound waves)
3) to give a personal opinion on the subjectivity of whether the mugen filter improves overal performance
4) i am still a "newcomer" (*hint hint* lol)
Method
- test drive with stock vs mugen (subjective testing)
- video and record the sound of stock vs. mugen (both from start with gradual acceleration to 4000rpm and back to idle)
Results
Stock filter
http://www.youtube.com/watch?v=gh30tqACAi0
Mugen Filter
http://www.youtube.com/watch?v=4QOMbEvVPOs
Stock soundwave analysis
http://sphotos.ak.fbcdn.net/hphotos-ak-ash1/hs506.ash1/29917_545086282751_219001630_32695845_198159_n.jpg
Mugen soundwave analysis
http://sphotos.ak.fbcdn.net/hphotos-ak-snc3/hs546.snc3/29917_545086272771_219001630_32695844_6298014_n.jp g
Discussion
Unfortunately I have no idea how to combine 2 sound waves and analyse the frequency graphs. So I have attached the individual frequency analysis as well as the videos for you to decide.
In terms of any noticeable changes, I feel the response is better especially at higher revs (above 3000rpm) and the ride is slightly better. No longer do I have to be heavy-footed at lower revs. No difference in sound whatsoever (you probably want a proper intake system, anyways).
Conclusion
I think the "placebo effect" plays a big role. Having spent close to $180 on the filter, psychologically, I would want to think its doing something. Some may ask why didnt I get the K&N. Well, I have qouted $158 by Repco Camperdown. So for a difference of $22, I might as well get a Mugen instead.
I think its a good replacement filter to the stock ones. But if you after higher gains and louder noise, other "toys" will be needed to satisfy that desire. Overall, I think I will drive with it since I am going to sell it at the end of the year when I am done with my studies. Will I do something else? I am contesting the idea of injen cai or simota carbon charger (CB-111). If I do fix them up, I will do a better analysis than this piece.
Thanks for your patience.
your friendly neighbourhood geek
P/S: if anyone can read japanese, it would be great to translate whats written on the graph provided by mugen