Name this welding style

B

Bandit

Forum Member
The one where you cut tubing into a lot of short pie shapes to go around a corner while maintaining diameter for example. I'd read recently where one welding forum poster called it 'armadillo' style. But a Yahoo search didn't produce anymore references to armadillo style.

Thanks
 
some people used to do it back in the day when mandrel bends werent so easy to get...i seen a exhaust along time ago that was like this, it was 5in exhaust and it would have a bunch of pie shaped/angled cuts to make the bend...
 
johnquick302 said:
some people used to do it back in the day when mandrel bends werent so easy to get...i seen a exhaust along time ago that was like this, it was 5in exhaust and it would have a bunch of pie shaped/angled cuts to make the bend...
Click to expand...


ahhhh i got it now...

JACKO
 
I guess pie slices is the best description. Some 2 stroke pipe makers are using them in the head pipe.

A few years ago I made one just like the one in Rodrigues' pic, just for fun after cutting up some 2.5" on a chop saw.
 
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Generally its looked upon as a last resort. It looks bad cosmetically, takes too much time to make and I'm guessing doesn't flow that great.


Bandit said:
I guess pie slices is the best description. Some 2 stroke pipe makers are using them in the head pipe.

A few years ago I made one just like the one in Rodrigues' pic, just for fun after cutting up some 2.5" on a chop saw.
Click to expand...
 
I've seen this used on the Brad Brand inlet pipes for f-body Vortech superchargers. In an f-body the turn out of the blower inlet is so tight that I believe this is pretty much mandatory in order to have a non-collapsable 4" inlet pipe.
 
Vortech or Procharger LT1 F-body both pretty much require something like this to get max flow.

FWIW, I'd call it more of a fabrication style than a welding style.

Birdie2000 said:
I've seen this used on the Brad Brand inlet pipes for f-body Vortech superchargers. In an f-body the turn out of the blower inlet is so tight that I believe this is pretty much mandatory in order to have a non-collapsable 4" inlet pipe.
Click to expand...
 
Rodrigues said:
Generally its looked upon as a last resort. It looks bad cosmetically, takes too much time to make and I'm guessing doesn't flow that great.
Click to expand...


Mandrel bends are usually preferred. I've read that when using the pie slice the area of the pipe is maintained through the curve. Better than cutting a wedge out of a pipe you want to flow, or angle cutting the ends.

Flow doesn't like sudden change in direction
 
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