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Eldo replacement muffler recommendations

J

Jackl

Just got it firing!
Joined
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My Eldo project is nearing completion, but the mufflers are really ugly. Head pipes are as new.
Can anyone recommend replacement mufflers? I'd like quiet ones and do not want a crossover. MAC? Others?
 
You've had a look at the usual suspects like MG-Cycle and Harpers? If yes, and you don't see anything, I can build you almost anything. Write me direct email; Todd at GuzziTech.com
 
GT-Rx® said:
You've had a look at the usual suspects like MG-Cycle and Harpers? If yes, and you don't see anything, I can build you almost anything. Write me direct email; Todd at GuzziTech.com
Click to expand...

Thanks Todd. I'm trying to keep this a low budget project. Do you know anything about Epco mufflers?
 
Why don't you want a crossover? It'll run better with one. The reproduction large outlet "cigar" mufflers are around $450 plus another $30 for the crossover.


MAC mufflers in "Slashback" or "Whispertone" are available for around $275.

Cheaper than that and you're into universal fitment mufflers such as the Emgo 27 1/2" reverse megaphone mufflers which work fairly well, but have a harsh tone. Usually about $130 a pair.
 
Amboman said:
Why don't you want a crossover? It'll run better with one. The reproduction large outlet "cigar" mufflers are around $450 plus another $30 for the crossover.


MAC mufflers in "Slashback" or "Whispertone" are available for around $275.

Cheaper than that and you're into universal fitment mufflers such as the Emgo 27 1/2" reverse megaphone mufflers which work fairly well, but have a harsh tone. Usually about $130 a pair.
Click to expand...
Charlie,

Re crossover pipes: I have run non-crossover mufflers on my daily rider Eldo for 20+ years. My reason for considering non-crossover mufflers on the latest Eldo project is for ease of assembly. Seems the crossover is strictly to reduce back pressure, which is more important at high RPM. Is there a difference in back pressure between "whispertone" (torpedo) and slash cut MAC mufflers? If so, I would assume the slash cut to be less restrictive, but louder - right?

With or without crossover? Which muffler? Is the potential performance difference small stuff for normal riding? I want a relatively quiet, good looking bike with reasonable performance. Your opinion?

My apology for taking too much of your time.:)
 
In my experience, a crossover in the system gives more mid-range power and better running overall. As I understand it, the crossover isn't to reduce back pressure - it's for better scavenging and so that both mufflers "share" volume to a certain extent.

There will be very little difference in "backpressure" with either MAC muffler since both are a straight-through core design. Neither is quiet in my opinion, the "Whispertone" is only slightly less loud. The "Slashback" has a removable baffle, the "Whispertone" has a fixed baffle.

If you want quiet, then might think about the European "cigar" mufflers with small outlet. However, they are quite restrictive and "strangle" engine performance. Second one down here:
http://www.motostoricheitaliane.com/EN/guzzi-1.html

The "large hole" version of the same muffler breathes much more freely and isn't all that much louder. I'll be buying those for all three of my Ambassadors.
Guzzi--03--V7-America.JPG
 
Nice looking mufflers.
Chrome plated steel or SS?
Is there a US importer, or must they be ordered from Italy?
 
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