How can I flair aluminum for veliciity stacks?

[Jon Cole]

I want to make some velocity stacks, and I need to know how to make the tops flair out just a bit. Can anyone help me on this? I don't have enough time to order some from the aftermarket.

Thanks.

Spyder

[Brendan]

Get a hammer and get a tapered nail punch. Put the aluminum tubing over the nail punch and lightly tap with the hammer and it will flare out the edge. Simple way to make velocity stacks. I just made an inlet restrictor for a Porsche I'm working on because I lost the pewter part. Hope this helps.

[old-hermit]

I use a pair of sharp needle nose pliers or hemostats. Stick them in the end and twist the tubing. It will create a small flair. Then sand with an emory board.

[Blue coyote]

You might also achieve decent results using a tube flaring tool, such as the cheap ones you can get for flaring brake lines. Only takes a few seconds, and easy to get it right once you get the first one to the shape you want...

Right tool for the right job and all

[Tommy Kortman]

Spyder,

I have used the ball end of a dry transfer burnishing tool. Through some trial & error, I got it to work pretty good. I would recomend heating the aluminum first. It will make the tube easier to form and less likely to split.

[Lownslow]

I want to make some velocity stacks, and I need to know how to make the tops flair out just a bit. Can anyone help me on this? I don't have enough time to order some from the aftermarket.

Thanks.

Spyder

some hardware stores sell flaring tools for cheap

[Jon Cole]

Thanks folks. I appreciate all the replies, and they were helpful.

I used a center punch tapped with a small hammer, after first using an X-Acto knife to shave out the inside lip of the aluminum tube. It worked perfectly.

Spyder