Velocity stacks

[ironman]

(01-27-2015, 09:14 AM)PixMan Wrote: Those appear to have been made via mandrel and die method. If the 6060 aluminum is T4 and dead soft, you could create dies and try your hand at spinning, though I'm rather ignorant about how you would hold onto the tubes. Perhaps make a plug for inside so you can put the tubes in some contour turned (harder) aluminum pie jaws?

Im getting a sample on thursday, so i'll have a closer look to it then.
Here are the specs on the tubes:
AIRCOM 6060, DIN AIMg5i 0,5, Werkstoff nr 3.3206, ASTM B 241  A96063 T5 , UNI 3569 - 9006/1