Exhaust tone

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Exhaust tone

Postby Vertigo » Sun Aug 15, 2010 10:28 am

Sup guys.

What kind of tone can I expect from various exhaust systems? Im pretty clueless about this at the moment. I have a pretty stock AW11 - sounds good inside, but probably a bit tinny out.

So Id like some opinions, lets say the differences between various muffler/end-tip combinations on a 2 inch exhaust, and say the differences between various pipe sizes when using a single muffler/tip (for arguments sake, Ill let the first poster pick which).

Keen for thoughts!
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Postby Vertigo » Sun Aug 15, 2010 10:29 am

And while Im not really looking for maximum drone, feel free to compare those parts that produce it.
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Postby rx7guy » Sun Aug 15, 2010 7:34 pm

Keep the tip to the pipe size or maybe a tiny bit bigger to avoid drone
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Postby coupekiwi » Sun Aug 15, 2010 11:18 pm

I got a whole AW11 exhaust here that will bolt to your car. Has two cobies.

Sounds choice. Thinks it's got a 4" tip on it haha but I would cut that off if I were to use it again.

Can get some picture if you want.

Can deliver it in Auckland next week too if you're keen.

This is what it sounds like: - http://www.youtube.com/watch?v=GapneLMpQTc

Image


Make an offer.
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Postby Heylin » Mon Aug 16, 2010 1:54 pm

AdrenalineR mufflers from Hastings are great. Alot of that drone comes form frequencies in the exhaust sound waves not being muffled \ cancelled out inside the can.

Pretty hard to do with a straight though style, but these guys use a 3 layer baffle system (steel wool, glass, ceramic) inside compared to cheap mufflers that use plain old steel wool.

I run to of these in a V config on my 3SGTE MR2 and have nearly stock level DB rating with a deep sporty tone (no drone).

Bear in mind the exhaust blades in a turbo act a resonator so take some of the sound out, so may not be as good in an NA.

I paid $240 per muffler (custom sized to my spec), polished stainless, lifetime warrenty, free Tshirt and stickers. Awesome NZ made product.
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Postby nzae86 » Mon Aug 16, 2010 5:17 pm

Here's one from my 4age car with a short exhaust (about the same length as a MR2) and a single straight through muffler made by Dytech , 2 1/2 inch all in stainless. Ended up a bit loud so back to the drawing board .They are building me a offset in and out muffler at the moment, very helpful and good prices .

http://www.youtube.com/watch?v=RmPeCKTrjyY
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Postby AE92-5ONIC » Mon Aug 16, 2010 6:23 pm

nzae86 wrote:Here's one from my 4age car with a short exhaust (about the same length as a MR2) and a single straight through muffler made by Dytech , 2 1/2 inch all in stainless. Ended up a bit loud so back to the drawing board .They are building me a offset in and out muffler at the moment, very helpful and good prices .

http://www.youtube.com/watch?v=RmPeCKTrjyY


That sounds insane, but formula atlantic... 9-10k revs was it?
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Postby strx7 » Mon Aug 16, 2010 8:22 pm

from my experience with exhuasts, the length of pipe after the back muffler seems to have the biggest bearing on tone/resonance etc
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Postby QikStarlie » Mon Aug 16, 2010 8:25 pm

^ what he said. muffler then no pipe after it or big tip bunged on the end is hopeless
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