reducing drone

m4a1mustang

I know the situation you are in, too. A little bit of it is guilt because you don't like that your significant other no longer likes riding in the Z with you because of the exhaust. When she's in the car with you, you feel bad because you know she's bothered.

But when you are alone, you enjoy it.

Instead of wasting money, just let time pass and you will get over it and it will get better. Don't let the guilt get to you.

Yeah, it sucks that my car gives my girlfriend headaches.... but have you heard how f'ing awesome it sounds? Priorities.

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- Steve

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Zsteve

I agree and the wife isnt in it much but now Im just more curious about all this side branch stuff. Ive been googleing it alot and it seems the side branch pipes are a legit way of getting rid of low freq noise (its used in cars, buildings, plants, etc that have generators). I think the Saclam used what is called a trombone style side branch modified a tad. The thing you have to calculate is what freq is producing the drone and then calculate the right length of the side branch to get it to bounce back 180 degrees out of phase to cancel each other out. Sounds pretty interesting. And it would be easy to tap into existing exhaust if you get the right deminsions.

Curiousity has got my attention.

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2010 LS3 C6 Silver coupe corvette

Matt

Does the Ark exhaust have the pipes you are talking about?

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"Any man who can drive a 370z while kissing a pretty girl is simply not giving the Z the attention it deserves." Albert Einstein....modified.

Zsteve

Yep looks like they do but also looks like it went into a deadend resonator too. That might be to reduce the length of the piping. I think the side pipe has to be the correct lambda length (which I guess is the length it takes a freq to travel) to achieve that 180 degree out of phase and maybe that wider pipe helped trick it to that. Im telling you this has me really curious now.


Actually the Ark and FI are very similar, Ark just has the side pipes.

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2010 LS3 C6 Silver coupe corvette

Zsteve

I was researching some more and saw this with one of my googles:

I’m a car-audio installer. An instructor at a training conference told me that clitoral resonance is 33 hertz, give or take, depending on the woman’s weight. This means that anything vibrating 33 times per second will cause the clitoris to resonate. Howard Stern made an example of this in Private Parts when he got a woman off by having her sit on a speaker, and just about any woman will respond to a bass note at that frequency if your subwoofer can play that low. Is there any truth to this? – J.B., Yuma Arizona

At 2K rpms 33 hertz is the drone freq:

So our girls should be jumping with pleasure when riding in our cars. Gonna have to get the wife to give it a try, maybe she will like the exhaust more then.

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2010 LS3 C6 Silver coupe corvette

m4a1mustang

And that is the truth.

I know some people are very selective readers when they go through my posts regarding the FI exhaust, but I can't tell you how many times I have compared the sound to a Mustang Cobra mixed with a Ferrari F355. I absolutely rave about the sound. But I guess since I'm not afraid to talk about the drone that I experience some people jump on that and only that... but if they really read everything I have to say I always disclaim that 1) it's subjective, 2) it isn't that much of a bother for me..., and 3) it sounds f'in amazing.

For probably the 100th time... I don't regret buying the system one bit. This is without a doubt the best sound for this car... when all others fail to produce the low-mid range beefy sound and spit out a lot of rasp up top, Tony has come up with something that is deep and powerful down low and screams like a refined exotic up top. ABSOLUTELY ZERO RASP.

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Zsteve

Some interesting stuff here. For those still pondering which exhaust, let me say this, FIs exhaust IMO sounds the best overall and I love it 90% of the time. The 10% I dont like is the 2K drone and it may be worse for me due to being an AT, even Tony says its worse on an AT. Looks is a 10/10, love the look, better than any other so far. Performance is there, I usedmy Gtech prior to the exhaust and did a 0 60 in 5.1 secs. That took me about 6-8 tries to get that. Went out the other day and the roads were still damp and had debre on them from days of rain and in the 2 tries I did I got a 5.2 secs in "D" mode, which before I was getting 5.4 secs. And a 5.1 in paddle mode but I couldnt get a good grip due to road conditions. Even before in paddle mode I was getting 5.2s and even a 5.3, now I easlily got the 5.1. When the temp is around 70 degrees I will go back out and hope the road debre isnt as bad either and do a bunch of runs. I think I shaved .2 secs of my 0 60 time with this exhaust.

Now as an older guy who travels to my daugthers college alot to visit and the wife is with me, and having an AT that loves to put the rpms at 2K I would love to find a reasonable fix to this just for those times. I wouldnt mind an extra 2-4 pounds on the exhaust for some side resonators to help this.

Tony I still think you have a super product and I would still get it over the others again but maybe an option of side resonators for those that might want would be a nice touch.

Just my 2 cents.

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2010 LS3 C6 Silver coupe corvette