01-07-2007, 01:56 PM
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#1
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Registered User
Join Date: Sep 2006
Location: chicago
Posts: 3,510
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what is this part?
is this just a baffle thats there to keep the noise down? can this just be taken off and caped off? im talking about the highlighted part thats coming off of the tube
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"I couldn't find the sports car of my dreams, so I built it myself." ~F. Porsche
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01-07-2007, 02:39 PM
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#2
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Registered User
Join Date: Apr 2006
Location: MD
Posts: 32
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I haven't looked at the shop manual, but that looks like an intake resonator. Usually added to make the intake sound the way they want and/or remove an annoying resonance. Removal of such a device might make for more/better or sometimes worse sound. I don't think you'd gain or lose any significant power, though, unless it's designed to be part of the intake runner's tuning.
Someone here can correct me if I'm wrong.
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01-07-2007, 02:55 PM
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#3
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Registered User
Join Date: Sep 2006
Location: chicago
Posts: 3,510
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when i had my last car for a short period of time (WRX), it had one of those baffles as well.
it was pretty much the whole wheelwell, i removed it and the sound of stock BOV went up, as did the overall sound when the gas pedal was down.
so i hope thats what it is.
has anyone taken this off befor and is there much of a difference?
__________________
http://i34.tinypic.com/157yslk.jpg
"I couldn't find the sports car of my dreams, so I built it myself." ~F. Porsche
Gemballa springs::litronics::Eurotech 18s(275/225)::B&M::MOMO wheel::
exhaust cutouts::EVOcoldair intake::OEM smoked tails & sidemarkers::
colormatched bumperettes::Top Speed Pro-1 exhaust::
my cardomain/pictures page
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01-07-2007, 03:13 PM
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#4
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Registered User
Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
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Hi,
Porscher calls it a Silencer. And, while part of the Noise Abatement equipment, it also serves as sort of a PRV (pressure relief valve) to even out the Intake Pressure as the Throttle Body is opened and closed. It is best to leave it be, you need it...
Happy Motoring!... Jim'99
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01-07-2007, 05:49 PM
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#5
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Registered User
Join Date: Oct 2006
Location: New Paltz, NY 12561
Posts: 935
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helmholtz resonator
According to Paul Frere's book, "Porsche Boxster Story" the entire development history, on page 52, he shows a diagram of the intake system. #4 on the diagram is referred to as a silencer. In the text he states that , " just before the throttle valve there is a Helmholtz resonator to produce a pleasant, 'sporty' intake sound. this is a great little book and I recommend it to all interested. I have seen it advertised on ebay and some of the advertisers carry it. Whatever the case, since there is a resonator valve within the intake manifold that helps in low end torque I am not sure how the removal of this silencer would help or hinder. It may matter not one whit so I imagine you could remove it, cap it off and run the car and see what happens. Report back your findings please.
986geezer
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01-07-2007, 06:19 PM
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#6
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Registered User
Join Date: Dec 2005
Location: Akron
Posts: 793
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Im sure its just a silencer. You dont need it , take a look at aftermarket cold air intakes its omitted.
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2002 TT
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01-07-2007, 06:37 PM
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#7
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Registered User
Join Date: Sep 2006
Location: chicago
Posts: 3,510
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well the way i see it is like this: that is just one more huge place for air to build up, and because it is right on the engine there is heat, so more and more warm air enters the engine, and well warmer air is not good.
i saw this on ppbb, i sent the message to guy who posted it to find out more info.
he referred to it as pedro sport intake??
__________________
http://i34.tinypic.com/157yslk.jpg
"I couldn't find the sports car of my dreams, so I built it myself." ~F. Porsche
Gemballa springs::litronics::Eurotech 18s(275/225)::B&M::MOMO wheel::
exhaust cutouts::EVOcoldair intake::OEM smoked tails & sidemarkers::
colormatched bumperettes::Top Speed Pro-1 exhaust::
my cardomain/pictures page
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01-07-2007, 07:43 PM
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#8
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Registered User
Join Date: Sep 2006
Location: chicago
Posts: 3,510
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__________________
http://i34.tinypic.com/157yslk.jpg
"I couldn't find the sports car of my dreams, so I built it myself." ~F. Porsche
Gemballa springs::litronics::Eurotech 18s(275/225)::B&M::MOMO wheel::
exhaust cutouts::EVOcoldair intake::OEM smoked tails & sidemarkers::
colormatched bumperettes::Top Speed Pro-1 exhaust::
my cardomain/pictures page
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