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What is my exhaust supposed to sound like?
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Jawon
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PostPosted: Fri Apr 25, 2014 1:37 pm    Post subject: What is my exhaust supposed to sound like? Reply with quote

I've been tweaking with the timing and carb adjustments and as I accelerate, the sound has ranged from relatively quiet to a "smooth guttural sound". I think I'm in the right range, especially since it sounded like a harley when I first got it. Maybe I'll post a video while taking a drive.

But can anyone tell me what it's supposed to sound like?

Somewhat related, would it be ok to slap on some rust converter and high-temp paint on the muffler, just to make it look presentable? Much thx!

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carl4x4
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PostPosted: Fri Apr 25, 2014 2:12 pm    Post subject: Reply with quote

I wouldn't bother doing the rust converter as it has a chemical reaction which will just get burnt off I suspect when it gets hot. I would give it a good wire brush before using some exhaust paint. But if the noise has changed a lot recently then the baffles inside of the boxes may well have broken up and started collapsing into the box restricting the air flow (this is common with catalytic converters for example). In which case it might not be worth painting them.
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sactojesse
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PostPosted: Fri Apr 25, 2014 2:36 pm    Post subject: Reply with quote

Glasspacks are on the loud side for aftermarket mufflers. You'll get a quieter, lower pitched, less annoying sound with dual quiet packs.
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Jawon
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PostPosted: Fri Apr 25, 2014 4:56 pm    Post subject: Reply with quote

It looks like I may have the EMPI Tuck-Away exhaust system. Hmm, so glasspack is on the loud side... makes me think mine is sounding right then.

I like their note about just cleaning and repainting with hi-temp paint. What you guys all said Smile

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http://www.empius.com/vwcatalog/2014/132.html
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iowegian
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PostPosted: Sat Apr 26, 2014 10:08 am    Post subject: Re: What is my exhaust supposed to sound like? Reply with quote

Jawon wrote:
I've been tweaking with the timing and carb adjustments and as I accelerate, the sound has ranged from relatively quiet to a "smooth guttural sound". I think I'm in the right range, especially since it sounded like a harley when I first got it. Maybe I'll post a video while taking a drive.

But can anyone tell me what it's supposed to sound like?

It might sound like "Brrmmm-Brrmmmm" or maybe "Bwap-Bwap" although I have heard some that sound more like "BurbelaBurbelaBurbelaBurbela".
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Jawon
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PostPosted: Sat Apr 26, 2014 2:33 pm    Post subject: Re: What is my exhaust supposed to sound like? Reply with quote

iowegian wrote:
It might sound like "Brrmmm-Brrmmmm" or maybe "Bwap-Bwap" although I have heard some that sound more like "BurbelaBurbelaBurbelaBurbela".


I will take that as good humored teasing Smile Maybe this will help, though engine noise seems to drown out the exhaust.

Anyway, does this sound about right? All valves adjusted to .006, 009 dizzy with 34-3 carb (with the rivet trick), timed at max advance, idling at 850. I believe an EMPI glasspack exhaust.


Link



Link

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iowegian
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PostPosted: Sat Apr 26, 2014 4:22 pm    Post subject: Reply with quote

Sounds good to me------although I might detect a bit of exhaust system leakage at idle. Maybe.
In any event it falls in the BurbelaBurbelaBurbelaBurbela catagory. And that is a good thing. Very Happy
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Jawon
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PostPosted: Sun Apr 27, 2014 12:38 am    Post subject: Reply with quote

Thx for that assessment. As I listen to it closer, it does indeed sound like "BurbelaBurbela"!

However, I should add it sounds much different in neutral vs driving on the road. As I rev while in neutral (like in these vids), it sounds pretty smooth, but when on the road there is a more noticeable "gurgling" (which video couldn't quite capture) and I'm gonna guess it's more about the acoustics in the cabin and not the exhaust itself, if that makes sense.

Anyway, unless there is additional wisdom, I'll move on to the next issue... it's helpful that at least I'm not getting "woh, get that checked out" responses.
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retrofive
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PostPosted: Sun Apr 27, 2014 3:52 pm    Post subject: Reply with quote

who needs them! LOL! (replacing some gaskets and other odd and ends tuning)


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iowegian
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PostPosted: Sun Apr 27, 2014 4:02 pm    Post subject: Reply with quote

retrofive wrote:
who needs them! LOL! (replacing some gaskets and other odd and ends tuning)


Link

Now that just sounds like a worn out John Deere "A":
aPockata-blop-aPockata-blop. Laughing
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retrofive
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PostPosted: Sun Apr 27, 2014 4:10 pm    Post subject: Reply with quote

iowegian wrote:
retrofive wrote:
who needs them! LOL! (replacing some gaskets and other odd and ends tuning)


Link

Now that just sounds like a worn out John Deere "A":
aPockata-blop-aPockata-blop. Laughing


rotfl Laughing


Link
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iowegian
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PostPosted: Sun Apr 27, 2014 4:32 pm    Post subject: Reply with quote

retrofive wrote:
iowegian wrote:
retrofive wrote:
who needs them! LOL! (replacing some gaskets and other odd and ends tuning)


Link

Now that just sounds like a worn out John Deere "A":
aPockata-blop-aPockata-blop. Laughing


rotfl Laughing


Link

Hey----in Ioway we know about these things. Wink
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