A different kind of exhaust question...

[jm1681]

I've often searched the internet for an answer to this question, but never really found an answer.

To me, it seems like whenever someone talks about exhaust sound/tone, they're always trying to make their exhaust throaty and deep. Personally though, I've never really liked the wall-of-bass kind of tone. I always preferred a shallow howl to a deep roar (Think original 350Z).

I guess the question is, if one takes performance out of the equation, how can an exhaust be "tuned" for pitch? I imagine smaller diameter pipes will produce a higher pitch, but are obviously more restrictive.

I was thinking of perhaps running two smaller diameter mufflers, in order to at least maintain the cross-sectional diameter of the primary piping. That way, flow isn't compromised, and the smaller pipes might bring about a higher pitched resonance.

Any ideas?

[subatoy]

back when I had my 370Z they were companies that would havee exhaust systems with different size resonators for louder applications etc.
I'd say it's all about the mufflers you use and resonators, maybe the diamatere of tube changes a bit but this sounds like a lot of money to be testing out til you get the right sound.

[jm1681]

Originally Posted by subatoy

...but this sounds like a lot of money to be testing out til you get the right sound.

That's exactly the problem I've had all these years

I could just give something a try, but if it doesn't sound the way I intended, I'm humped >.<

Now I'm thinking about it, the Nameless setup DOES use very small diameter plumbing for it's two outlets, but it still has a bit more "boom" than I really want.

[xjohnx]

Jason @ Nameless has posted quite a bit about tuning exhausts for tone. Perhaps he can chime in.

[Sportsguy83]

See here:

http://www.ft86club.com/forums/showp...3&postcount=95

[dabocx]

Yeah i want something a little more exotic sounding personally but thats hard to do with a flat 4.

Still the nameless system is my favorite so far and sounds dam good.


In my dreams this car would have come with a flat six. For anyone thats ever heard the porsche flat 6s with aftermarket exausts....mother of god

[mike2100]

Originally Posted by jm1681

That's exactly the problem I've had all these years

I could just give something a try, but if it doesn't sound the way I intended, I'm humped >.<

Now I'm thinking about it, the Nameless setup DOES use very small diameter plumbing for it's two outlets, but it still has a bit more "boom" than I really want.

Have you heard the Nameless setup with their equal length header? Seems to me that eliminating the alternating nature of exhaust pulses of a UEL header would also eliminate some low frequency sound.
Thinking more about it, intuitively it seems the Nameless exhaust would be the highest pitch and less resonating design we've seen so far.

You could always just drive the Z car

[mike2100]

Originally Posted by dabocx

Yeah i want something a little more exotic sounding personally but thats hard to do with a flat 4.

Still the nameless system is my favorite so far and sounds dam good.


In my dreams this car would have come with a flat six. For anyone thats ever heard the porsche flat 6s with aftermarket exausts....mother of god

On video the SRT exhaust sounds exotic. I can't wait to get mine installed to hear for myself.

Most Porsche flat 6s I hear at the track are obnoxiously loud and annoying, in my opinion of course.

[xjohnx]

Originally Posted by mike2100

Have you heard the Nameless setup with their equal length header? Seems to me that eliminating the alternating nature of exhaust pulses of a UEL header would also eliminate some low frequency sound.
Thinking more about it, intuitively it seems the Nameless exhaust would be the highest pitch and less resonating design we've seen so far.

You could always just drive the Z car

the stock header is equal length.

[mike2100]

Originally Posted by xjohnx

the stock header is equal length.

There is a ~30% difference in length. I remember Jason@Nameless stating so in one of his threads and Tainen repeating it. I mentioned that that fact should be added to a FAQ.

[xjohnx]

Originally Posted by mike2100

There is a ~30% difference in length. I remember Jason@Nameless stating so in one of his threads and Tainen repeating it. I mentioned that that fact should be added to a FAQ.

Ah, thanks.

[jm1681]

Originally Posted by sportsguy83

See here:

http://www.ft86club.com/forums/showp...3&postcount=95

Thanks

Originally Posted by mike2100

Have you heard the Nameless setup with their equal length header?

I have not, but I will find it presently

Originally Posted by mike2100

You could always just drive the Z car

That's a BIG negative on that one XD

[xjohnx]

Originally Posted by jm1681

Personally though, I've never really liked the wall-of-bass kind of tone. I always preferred a shallow howl to a deep roar (Think original 350Z).

The R32 sounded great from the factory too.

[jm1681]

Originally Posted by xjohnx

The R32 sounded great from the factory too.

Great example Especially with the valve thingy disconnected

On a semi-related note, I don't know if I was hallucinating, but did I see something in an exhaust post here about a lot of flow being trapped in the mid-pipe?

Maybe keep the stock muffler, and just switch to a higher-flowing mid-pipe?