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YOUR RESEARCHResonance
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Test drive the new boxster, 987s
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Leading evidence: 'Test drive the new boxster, 987s' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Test drive the new boxster, 987s' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Hey guys,
What is resonance?
I just read all 116 posts that come up in the 996 forum on doing a search for resonance. It's not that I have any concerns; rather I just want to know what this term is used to describe. It seems that some people who install aftermarket exhausts complain of resonance somewhere along the rev band.
Does resonance describe a condition whereby the interior vibrates or drones irritably? Do all exhausts resonate? I even looked up the word in the dictionary:
"{Acoustics} Intensification and prolongation of sound, especially of a musical tone, produced by sympathetic vibration."
I'm lost and feel like I am missing something when people describe it. Any chance you guys have a recording of resonance?
Thanks.
Think of the bass sound in some of the young kids cars when they have the volume turned up and drive by your car. The bass can not only be heard, but also �felt� due to vibration in your car induced by the bass sound.
Some exhaust systems will �resonate� at certain throttle and speed values. When this happens, it usually is not a prolonged reverberation of the sound inside the cabin, but it is noticeable. It is a little disconcerting when you hear it, almost like the �bass vibration� mentioned earlier. Someone else here can, and probably will, give you a better explanation of resonance.
Difficult to describe I would say think of it like some kid with a car with really big woofers and the vibration it makes at certain tones except this would be more like at a certain rpm range. Worst case would be say at the rpm range of say 70mph in 6th gear, perfect to drive you crazy on a long trip. Never recorded and my current car does not do it but my old corvette did and I hated it. Not sure exactly what causes it but my guess would be 2 different or same materials connected together were a vibration might begin only at a certain harmonic frequency. Sorry looking back at this I probably did not do you any good but trust me you do not want it.
Funny thing is I have a Lappis Blue 911 except mine is a convertible, just like in real life the hard top is faster and I guess the computer operator has faster fingers
Thanks guys, I'm starting to get the idea. So is it more of a buzziness in the cabin noticeable (both by sight and feel) by vibrations coming from the dashboard, center console, and what not?
Go test drive the new Boxster, 987S. Go on the highway and go at a steady speed of 55-60 mph on 6th gear, with the top and windows up. The smoother the highway, the better. You'll "sense" a drone, a resonance. Pretty annoying, and can drive you crazy on loooong trips. "That's right, officer. The resonance drove me to drive at 170mph to get away from it. I plead temporary insanity"
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I can't block her out.....I wish it was like resonance.....I always have to yell back.....gives me a good reason to take the P out for a senseless drive and experience resonance I can live with every day..for the rest of my life....I don't know if I can say the same for the wife!! Just kidding!! You never know she might find this link somewhere!!!
I HAVE NOW TRIED TWO EXHAUSTS ON MY 996 TT = MILTEK MILLTEK= 100 CELL = LOUD BUT CRISP AND FAST SPOOL- MODERATE DRONE BUT NATURE OF THE CAR
A.W.E = 300 CELL, AWE EXHAUST = LOUD WITH MORE DRONE, SLOWER SPOOL
LOOKING = WTB = EUROPIPE STAGE 2 QUIET
