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  #1 (permalink)  
Old 12-20-2006, 04:15 PM
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Default Have you seen this exhaust, what do you think?

I'm interested to hear any opinions.





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Last edited by DesmoWorks : 12-20-2006 at 04:25 PM.
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Old 12-20-2006, 06:33 PM
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cool but it would leave a hole under the tail on a street bike. for a custom
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Old 12-21-2006, 12:35 AM
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Fug ugly IMO.

Have to have enormously long primaries too. Plus the other pipe must wrap around the other side of the engine thus providing hot air to not help the poor suffering AIR cooled engine.

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Old 12-21-2006, 04:44 PM
Ed999 Ed999 is offline
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I like it. Functionally it may suck, but looks-wise, it works for me.

Be better if the seat and rear cowling were installed to give it a more finished appearance.
Of course, I like to swerve to the left when everyone else goes right..
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Old 01-02-2007, 03:42 AM
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I think it looks sexy, but hows the plumbing look on the left side of the bike?
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Old 01-02-2007, 04:12 AM
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Quote:
Originally Posted by mike996
I think it looks sexy, but hows the plumbing look on the left side of the bike?
Maybe that is why all of the downloadable images are of this side, lol. There is an image of the other side on the Zard site, but it is not very large.

Go to http://www.zardexhaust.it
select produzione
select specials
and it is the first image on the left.
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Old 01-05-2007, 06:53 PM
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Overall, I like the look of it. I hope the production version of the header is made from one or maybe a few pieces of mandrel-bent tubing and isn't made of 30+ welded sections of tube like shown in the picture. While it has a neat look to it, I'm betting they are hand-welded and not machine welded therefore, making it time consuming and expensive. Also given that it's welded, I'm curious to know if the tube ID has any drop thru or a large underbead in each weld region that would limit flow cross-sectional area suggesting a single piece or reduced number of pieces would be better for overall flow.
Regardless, still cool looking
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Old 01-08-2007, 11:10 PM
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Looks like an exceptional tig welding job. As the owner of a metal fabrication shop, this appears to be pre-cut sections that is hand-welded, as others have mentioned. The money saved in purchasing the shorty pre-cuts is more than used to weld this up. A cheap mandrel bender to be able to make this out of a single piece is $20-30k, and more than likely that will be a used price.

I like the shape/form of the exhaust. I don't like the exposure of all the welded pieces, no matter how nice the welds are.
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Old 01-09-2007, 12:35 AM
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I'm not sure why they chose to cut individual pieces and weld them together. They do have mandrel benders, that they didn't buy used None of their production systems are made this way so I'm not sure.

I love seeing all of the individual welds though, I would take this type of build any day.
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Old 01-09-2007, 01:38 AM
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They could have easily welded the individual pieces together to develop the prototype. Once the prototype is final, then the measurements/bends can be taken and fed to the program for the bender. Just a guess, as we do this also, for the 1st of anything that we build.

Last edited by jtbshaw : 01-10-2007 at 11:04 PM.
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Old 01-09-2007, 02:05 AM
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I see. I doubt if they'll ever produce this system, but I think it would be really cool. Although it would probably look better with the pipe coming out from under the seat since there would be a gap otherwise.
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Old 01-09-2007, 05:12 AM
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Quote:
Originally Posted by jtbshaw
They could have easily welded the individual pieces to gether to develop the prototype. Once the prototype is final, then the measurements/bends can be taken and fed to the program for the bender. Just a guess, as we do this also, for the 1st of anything that we build.
That's precisely what I was trying to get at though didn't say it that well. I do feel better reading your input though since I'm not much of a welding guy - I wasn't too far off the mark (In case it's not coming across, I'm trying so say thanks for offering your input, I'm not trying to sound like a condescending douche)
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Old 01-10-2007, 11:07 PM
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Quote:
Originally Posted by 46Fan
... I'm not trying to sound like a condescending douche)
that's cool, man.... I didn't take it that way.
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Old 01-15-2007, 03:02 AM
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Interesado.
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Old 01-17-2007, 04:07 AM
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my thoughts...

belt changes will be a pain in the ass...

gonna need a funnel for oil changes...

your right leg is gonna get cooked...

multi's look friggin awesome with the butt ugly fairing off...

but other than that, looks dang pretty cool
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Old 01-27-2007, 12:02 AM
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any 1 know who makes the rear sets that are on the bike in the pic ??
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Old 02-18-2007, 06:27 AM
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zard sent me some images so if anybody wants high res of any let me know. here is a small version of the other side!

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Old 02-24-2007, 01:15 AM
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For those who know welding, whats the inside of these welds look like?

I cant imagine it being too smooth, no? ........wouldnt that slow down exhaust flow thus hampering performance?

With that said, Ive always dreamt of building my own custom exhaust but would need to buy, then learn how to weld!

Which leads me to my final question, is one better off with a mig or tig welder?
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Old 02-24-2007, 01:18 AM
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Quote:
Originally Posted by XFBO
For those who know welding, whats the inside of these welds look like?

I cant imagine it being too smooth, no? ........wouldnt that slow down exhaust flow thus hampering performance?

With that said, Ive always dreamt of building my own custom exhaust but would need to buy, then learn how to weld!

Which leads me to my final question, is one better off with a mig or tig welder?
I don't know about this particular system, but all of the production systems Zard makes they grind down the welds on the inside so there is no obstruction of flow.

Mig is easier to learn quickly, but tig is a much nicer weld. Mig is also a lot cheaper.
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Old 02-24-2007, 01:22 AM
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From the pic above, it appears that the exhaust is TiG welded. Therefore, there won't be much residual left on the inside.

We use MiG welding with everything that we do. As for which is better, as long as you learn how to weld properly (as in not just "gluing" the metals together), then either works great. The key is to learn the proper settings for the material that you are welding. Too cold and you will just lay a bead out there...too hot and you burn through the metals....just right, the metals will merge together properly.
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