cast vs ramhorn manifold - sound ?

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Old Dec 22, 2011 | 08:18 AM
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Default cast vs ramhorn manifold - sound ?

I have a ramhorn manifold.
I have never used a cast manifold.

Does the sound of the car change according to the manifold being cast or steel tubular in terms of noise level ?
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Old Dec 22, 2011 | 08:24 AM
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Default Re: cast vs ramhorn manifold - sound ?

Not really.
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Old Dec 22, 2011 | 10:03 AM
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Default Re: cast vs ramhorn manifold - sound ?

Unless you drastically change exhaust runner lengths, the exhaust tone isnt going to change. This can be seen on Subarus...stock manifolds are unequal and give the distinct sound, but if you change them to EQ manifolds, the uneven 'subaru' sound goes away
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Old Dec 22, 2011 | 06:55 PM
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Default Re: cast vs ramhorn manifold - sound ?

I had a ebay cast iron manifold and switching from that to Go-Autoworks Ramhorn, car def sounds alot stronger when it opens up in vtec. A cast manifold made my exhaust sound deeper. With the Ramhorn the pitch of my exhaust did change, a bit more high pitched once it goes into vtec, sounds good though. This video is a good comparison, the EG has a cast manifold from what I was told and the DA has a Ramhorn manifold, you can hear the obvious difference in sound.

http://www.youtube.com/watch?v=kvnYUeR6hQA
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Old Dec 22, 2011 | 08:09 PM
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Default Re: cast vs ramhorn manifold - sound ?

Originally Posted by GEN2 LS
I had a ebay cast iron manifold and switching from that to Go-Autoworks Ramhorn, car def sounds alot stronger when it opens up in vtec. A cast manifold made my exhaust sound deeper. With the Ramhorn the pitch of my exhaust did change, a bit more high pitched once it goes into vtec, sounds good though. This video is a good comparison, the EG has a cast manifold from what I was told and the DA has a Ramhorn manifold, you can hear the obvious difference in sound.

http://www.youtube.com/watch?v=kvnYUeR6hQA
Perhaps I missed the point, but are you referring to the exhaust sound/pitch? Because that distinctive lovely sound is the inducer bleed groove of the turbocharger in its compressor housing making that little noise.
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Old Dec 23, 2011 | 08:06 AM
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Default Re: cast vs ramhorn manifold - sound ?

I love the spool...it reminds me of my S256. Is that a 30R?

As for the exhaust tone, i couldnt tell a difference. If you could put two identical cars next to one another and change out the manifolds, then maybe you would notice a difference. Otherwise, its pretty much all the same.
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Old Dec 23, 2011 | 08:25 AM
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Default Re: cast vs ramhorn manifold - sound ?

How could you not hear the difference? The EG sounds "dirty" and almost not like a honda.
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Old Dec 23, 2011 | 08:27 AM
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Default Re: cast vs ramhorn manifold - sound ?

I was listening to the spool and my computer speakers suck...i'll have to give it another shot when i'm not on my laptop
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Old Dec 23, 2011 | 09:19 AM
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Default Re: cast vs ramhorn manifold - sound ?

i could care less about exhaust note....what i care about is my turbo spooling is louder than the exhaust....gotta love anti surge housings sounds like a f-in jet plabne
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Old Dec 23, 2011 | 10:51 AM
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Default Re: cast vs ramhorn manifold - sound ?

In your specific case, you probably won't notice a huge difference in sound if the only thing you change is the manifold. If you went to a long-runner manifold, possibly.

As for the video you posted.First off, the two engines have different displacements. 1.8L vs 2.0L will always sound different. Second, if they have different exhaust diameters, lengths, OR mufflers, they will sound different. Turbine housing size, cylinder pairing, and exhaust runner length will all play a part in how a motor sounds. This is just on the exhaust side. The intake side has an equal number of variables to change how the car sounds as well.
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Old Dec 23, 2011 | 11:13 AM
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Default Re: cast vs ramhorn manifold - sound ?

Originally Posted by TheShodan
Perhaps I missed the point, but are you referring to the exhaust sound/pitch? Because that distinctive lovely sound is the inducer bleed groove of the turbocharger in its compressor housing making that little noise.
yeah I wasn't referring to the DA's 3076r anti-surge housing sound, that's a distinctive sound everyone knows lol. you can hear the difference in the exhaust notes when they do the fly bys under the bridge.
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