New owner of a Speed 6. First addition was a Forge bpv. Subtle little ting with a modified stock airbox. No I put on a Fujita CAI and I'm downright embarrassed driving through my neighborhood with the zzzzzzssssswhooooshPTINK, zzzzzzzssssssswhoooooshPTINK. Whole lot of audible drama going on just 0-30. I had no idea a CAI would add so much friggin noise to this fine vehicle. Not sure I could be bringing along clients to lunch in my new car any longer. For obvious reasons, I want to keep the CAI, but is there any way to quiet this thing down? Would a different BPV be a lot less annoying? I'll gladly sell my new Forge to anyone who doesn't mind the noise. I've got a PG inlet pipe on the way too and imagine it will only get louder. Any experience/help appreciated. Thanks.:drive1:
CAI Loudness
- Thread starter mn3kgtvr4
- Start date
VTEC8YA
The Story Teller....
Yea. I have heard of the cardboard thing to, but some people brought up valid points of that cardboard breaking down and falling apart. I would think if you found a thing piece of nylon/plastic cut to fit in there it might work. With my forge, if im not getting more then 5 psi theres no "ping". But the cobb sri is just ungodly loud.
dmention7
Hater
+1
The entire purpose of the stock airbox and resonator design is to muffle the noises you're talking about. The reason a CAI shows the gains it does is because there is a lot of noise to muffle, and that means a lot of restrictions.
There are definitely other choices for a BPV that may eliminate the "ching" but you're still going to get the loud whooshes and air noises if you keep the CAI.
The best option IMO is not to be a leadfoot with clients. lol Or find some clients who aren't such pussies that a little turbo noise freaks them out.
Thanks folks. I was very comfortable with the noise level of the stock airbox without the resonator. So, I guess it's keep the Forge, sell the Fujita CAI, put the stock airbox back in, install the inlet pipe since I'd like to get rid of that stock restriction. Should be plenty of airflow and reasonable sound level. The airbox itself is a nice big resonator that doesn't I doubt realistically reduce flow with the big panel filter in there.
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spek1098
Guest
+1 That's the best idea yet
more is less
Well, since my clients range from CTOs that would probably understand to female CFOs that probably wouldn't, the loudness issue can't continue. Even one of my largest clients is a big auto recycler and they're all total car guys but they drive Mercedes, Infinity, and Audi (free parts, eh) and while they certainly appreciate the technical aspects of the DISI, rice burner sounds are no good. Plus, I'm 39 and appreciate a quite interior. Not that I couldn't afford one of those others, but the S6 is good for the environment sorta while being fast, lotsa reasons to own this car. An I just friggin love turbos after my last sports/hobby car.
The compromise - screw the outside world, create my own Lexus level oasis inside the S6. Solution - spend many hours reading about Dynamat and its derivatives and obvious Home Depot/Menards alternatives and do some damned sound isolation. I chose closed cell foam with aluminum backing duct wrap plus a layer of this foam meant to go under laminate flooring so foam/aluminum/foam layers, so far have done the whole trunk and both front doors. Yet to do under the carpeting and back seat. Already notice a HUGE difference. The Forge is but a peep in the distance with the windows rolled up. I didn't take the time to take pictures on dissasembling the front doors, but will gladly do a how to if people want it. Excellent improvement for a varitiety of reasons.
Well, since my clients range from CTOs that would probably understand to female CFOs that probably wouldn't, the loudness issue can't continue. Even one of my largest clients is a big auto recycler and they're all total car guys but they drive Mercedes, Infinity, and Audi (free parts, eh) and while they certainly appreciate the technical aspects of the DISI, rice burner sounds are no good. Plus, I'm 39 and appreciate a quite interior. Not that I couldn't afford one of those others, but the S6 is good for the environment sorta while being fast, lotsa reasons to own this car. An I just friggin love turbos after my last sports/hobby car.
The compromise - screw the outside world, create my own Lexus level oasis inside the S6. Solution - spend many hours reading about Dynamat and its derivatives and obvious Home Depot/Menards alternatives and do some damned sound isolation. I chose closed cell foam with aluminum backing duct wrap plus a layer of this foam meant to go under laminate flooring so foam/aluminum/foam layers, so far have done the whole trunk and both front doors. Yet to do under the carpeting and back seat. Already notice a HUGE difference. The Forge is but a peep in the distance with the windows rolled up. I didn't take the time to take pictures on dissasembling the front doors, but will gladly do a how to if people want it. Excellent improvement for a varitiety of reasons.
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spek1098
Guest
By S6 you mean Audi S6 right? Or my guess is your talking about you Mazdaspeed 6? Kinda like calling the Mazda 3 an M3, yes semantics, I know, but confusing still. MS6 and Mz3 are clearer. Here's to being anal. :draught2:
Seems to me adding all that weight trying to sound proof will negate much of the power gains from a SRI.
And I take offence sir at you calling these sound rice burner sounds. These cars have actual power gains that happen to be accompanied by a louder engine. This is future of power in hydrocarbon based automobiles, not some puckasses excuse to make more noise and create attention for himself. Can't have your cake and eat it too. Myself, I'd be upgrading to a BMW if I had clients to impress.
Seems to me adding all that weight trying to sound proof will negate much of the power gains from a SRI.
And I take offence sir at you calling these sound rice burner sounds. These cars have actual power gains that happen to be accompanied by a louder engine. This is future of power in hydrocarbon based automobiles, not some puckasses excuse to make more noise and create attention for himself. Can't have your cake and eat it too. Myself, I'd be upgrading to a BMW if I had clients to impress.
ZoomZoom Diva
New Member
You know... I think we may have found my exact opposite.
JT, I agree on your assessment of your car. Marcy would likely have said a little more than fairly loud, but she didn't think ricey either.
I would say the term "ricer sounds" is incorrect and it would not matter whether the car sounds were those coming from a 4-cylinder turbo or the burble of a V8 with pipes... but that intrusive car noise is not desirable for the business uses of the car.
JT, I agree on your assessment of your car. Marcy would likely have said a little more than fairly loud, but she didn't think ricey either.
I would say the term "ricer sounds" is incorrect and it would not matter whether the car sounds were those coming from a 4-cylinder turbo or the burble of a V8 with pipes... but that intrusive car noise is not desirable for the business uses of the car.
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Ah, yeah, not exactly hundreds either. Proper research and a trip to Home Depot is all it takes. Coming from a luxury sedan I was surprised at the lack of soundproofing on this vehicle. It's solid, no rattles of any kind, very well made - just skipped a few steps to keep the price down. So far trunk, both front doors, front floors and I can barely hear a Harley pass me on the road. That's a good thing and well worth doing. It's under a hundred bucks for the whole car, but is very time consuming.
Seems to me adding all that weight trying to sound proof will negate much of the power gains from a SRI.
- maybe 20lb the whole car - sound proofing is not the same as those morons that put asphalt and lead mats in to kill vibrations, need to understand the science of it and most people do it completely wrong. Without upgrading the sound system, the MS6 has no problems with vibration.
Anyway, testy crowd here. I'm an owner of an MS6, not here to bash MS6s. Be on your way now.
- maybe 20lb the whole car - sound proofing is not the same as those morons that put asphalt and lead mats in to kill vibrations, need to understand the science of it and most people do it completely wrong. Without upgrading the sound system, the MS6 has no problems with vibration.
Anyway, testy crowd here. I'm an owner of an MS6, not here to bash MS6s. Be on your way now.
D
DrWebster
Guest
Bah, ignore them gomers. You want a noisy car on the outside but quiet on the inside, that's just how you roll.
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spek1098
Guest
I miss spoke and said SRI instead of CAI, got me thinking, maybe you need to hear/try an SRI instead of the CAI. I don't notice any whooshing sounds unless I really get on it, when I do it's more of the turbo spooling that I hear (I think at least that that is what I am hearing)
And the term "ricer" is not to be thrown around here lightly, that's quiet a slap in the face as most of us detest true ricers.
And the term "ricer" is not to be thrown around here lightly, that's quiet a slap in the face as most of us detest true ricers.
JohnnyT
New Member
I guess most of us are younger and enjoy the performance aspect this vehicle has to offer and detest the lack of sound the stock car offers, especially for being turbo'd. I understand your situation, but am just surprised at the extent and labor spent to go through the troubles to simply quiet down an intake. I mean, why not just throw the stock intake back on if you were comfortable with the sound levels before? Easy 30 minute swap, and free at that.
Oh, and don't buy upgraded motor mounts, diff. mounts, etc. if you're not a fan of added vibes. Also, your inlet pipe will make your intake substantially louder, and if you'd like a quieter BPV, I highly suggest synapse. I wouldn't mind selling mine to upgrade to a louder one!
I think ricer just threw spek off. I certainly didn't mean to come off as a prick, and I apologize for doing so if it came off that way. I bash my car all the time - keep your car as stock as possible and you'll never have to know what some of us have gone through.
Oh, and don't buy upgraded motor mounts, diff. mounts, etc. if you're not a fan of added vibes. Also, your inlet pipe will make your intake substantially louder, and if you'd like a quieter BPV, I highly suggest synapse. I wouldn't mind selling mine to upgrade to a louder one!
I think ricer just threw spek off. I certainly didn't mean to come off as a prick, and I apologize for doing so if it came off that way. I bash my car all the time - keep your car as stock as possible and you'll never have to know what some of us have gone through.