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Registered:
August 2002
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Intake Resonator Purpose
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Fri, 26 March 2004 01:33
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Designed to reduce intake noise or are they part of the whole tuned intake system.... or both?
By removing them, will i only make the intake louder? or will it adversely affect performance?
ta. 
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Intake Resonator Purpose
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Fri, 26 March 2004 01:35
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Muffler
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Intake Resonator Purpose
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Fri, 26 March 2004 01:56
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Part of intake system...
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Location:
Melbourne
Registered:
March 2004
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Re: Intake Resonator Purpose
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Fri, 26 March 2004 02:02
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I can't really comment generally, but removing the resonator from my Swift GTi made induction noise significantly louder, gave me more power above 4 grand and a slight flat spot around 3500.
So, both  Defintely a worthwhile mod on a G13B though.
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I supported Toymods
Location:
Australia
Registered:
November 2003
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I supported Toymods
Location:
Perth
Registered:
May 2002
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Re: Intake Resonator Purpose
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Fri, 26 March 2004 02:12
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| CrUZsida wrote on Fri, 26 March 2004 10:03 |
But the one on the 5mge would be muffler only
as would the one on the 1uz
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And this is based on what factual groundings?  The world of NA tuning is so finnicky, I think you'd be surprised how much of a difference they make with and without.
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I supported Toymods
Location:
Australia
Registered:
November 2003
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Re: Intake Resonator Purpose
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Fri, 26 March 2004 02:22
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No factual groundings, just the design and location of the 'unit' indicates that it has very little to do with airflow
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Location:
Melbourne
Registered:
August 2003
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Re: Intake Resonator Purpose
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Fri, 26 March 2004 03:12
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| Quote: |
No factual groundings, just the design and location of the 'unit' indicates that it has very little to do with airflow
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As in most cases! What it *does* do is change the total displacement of the intake tract, aparently leading to significant changes in intake tuning and resulting motor behaviour.
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Location:
Brisbane
Registered:
May 2002
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Re: Intake Resonator Purpose
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Fri, 26 March 2004 04:05
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Does the volume of the pre-throttle intake tract have much relevance to intake tuning? Post-throttle I can understand, but I wouldn't have thought pre-throttle would be that significant...
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Intake Resonator Purpose
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Fri, 26 March 2004 04:22
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muffler and integral part of intake tract. if it is pre throttle, then it is there for WOT help...
think about it... what is loud noise? large amplitude waves of air compression.
what is intake tuning? getting the length of the intake right so the reflected large amplitude waves hit the intake valve while it is still open and stuff more air in there.
problem is, this is in small rpm bands, and at other rpm, there can be unwanted pressure reflections in the intake, causing flatspots 
the resonator is designed to add different frequency waves into the intake tract, in essence to provide cancelling or dampening to the nasty reflections, resulting in a smoother torque curve.
it is possible that removing it could help at certain rpm, but you will almost defintiely see a negative effect somewhere (with a stock motor)
thten again, some ARE just noise cancelling.. same principle, just not large enough to actually effect the induction process....
dyno with, dyno without, and let us know
Cya, Stewart
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Location:
Kita-Ku, Sapporo, Japan
Registered:
January 2003
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Re: Intake Resonator Purpose
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Fri, 26 March 2004 04:25
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| Norbie wrote on Fri, 26 March 2004 15:05 |
Does the volume of the pre-throttle intake tract have much relevance to intake tuning? Post-throttle I can understand, but I wouldn't have thought pre-throttle would be that significant...
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at WOT, the open throttle does not pose much of a restriction to resonance, and the whole intake tract is the resonator, so pre-throttle resonator would have an effect. how large depends on design. at anything less maybe half throttle, the throttle acts effectively to block a lot of the resonance in the intake,
resonator is tuning aid when the intake tract is not good perhaps
Cya, Stewart
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Location:
Sydney
Registered:
July 2002
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Registered:
August 2002
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Re: Intake Resonator Purpose
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Fri, 26 March 2004 06:35
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Thanks Pete, awesome article! 
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