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Technical Any one making velocity stacks?

Discussion in 'The Hokey Ass Message Board' started by wraymen, Mar 18, 2021.

  1. I found a few old posts on here about guys making stacks both on a lathe and cast. I tried getting in touch with no luck. Thought I’d ask before buying off the net. Thanks
    Need three for Rochester 2G small base.
    2 5/8” I believe.
     
    Last edited: Mar 18, 2021
  2. guthriesmith
    Joined: Aug 17, 2006
    Posts: 5,661

    guthriesmith
    ALLIANCE MEMBER
    1. H.A.M.B. Chapel

    How many you need? I have one that is like new I don’t need... I didn’t make it, but it came with a truck I bought.
     
    lothiandon1940 and wraymen like this.
  3. chevy57dude
    Joined: Dec 10, 2007
    Posts: 6,563

    chevy57dude
    Member

    Wray, I have a couple, too. Tall chrome ones that would take a filter if needed.
     
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  4. guthriesmith
    Joined: Aug 17, 2006
    Posts: 5,661

    guthriesmith
    ALLIANCE MEMBER
    1. H.A.M.B. Chapel

    Here is the one I have that would also take a filter. If you only need one and could use it, it’s yours. If you need two, sounds like @chevy57dude may have you covered.

    C4CB8AFE-F5AB-483B-AC57-71D7EBECC895.jpeg
     

  5. Thanks guys. I edited my post to show exactly what I’m looking for. Should of done that in the first place.
     
  6. I was hoping someone might still be making some from cast or on a lathe. I found a few on the net but thought I’d try here first. Thanks again.
     
  7. chevy57dude
    Joined: Dec 10, 2007
    Posts: 6,563

    chevy57dude
    Member

    But I have a pair of the ones Guthrie showed. You'll just have to run triple 4 barrels!;)
     
  8. guthriesmith
    Joined: Aug 17, 2006
    Posts: 5,661

    guthriesmith
    ALLIANCE MEMBER
    1. H.A.M.B. Chapel

    Lol...Seems we are too fast on the draw offering what you aren’t looking for. :p
     
  9. You guys are fine, I’m a little slow.
    Cheers
     
  10. lippy
    Joined: Sep 27, 2006
    Posts: 5,665

    lippy
    Member
    from Ks

    Wal-mart. Lippy
     
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  11. Hnstray
    Joined: Aug 23, 2009
    Posts: 12,168

    Hnstray
    ALLIANCE MEMBER
    from Quincy, IL

    Yep....or similar. Restaurant/ Bar supply outlets.....stainless or aluminum cocktail shaker...??

    In the late ‘60s I used one of those flexible plastic tapered drinking glasses with the bottom cut off......only on Sunday at the drag strip.....low budget, low power, OT car.... :oops:

    Ray
     
  12. bill gruendeman
    Joined: Jun 18, 2019
    Posts: 573

    bill gruendeman
    Member

    I think metal spinning is the ticket (old school metal forming used a lot on low production parts). Someone with a lathe could make a wooden buck.
     
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  13. finn
    Joined: Jan 25, 2006
    Posts: 871

    finn
    Member

    I stumbled on something on YouTube about someone spinning velocity stacks on a HF or Woodward Fab bead roller (I think... I was a little out of it while recovering from my second Covid shot).

    Could have been Lazze, but I am not sure. A search should find it. I do remember that he was just screwing around to se if it could be done.... and it could.

    Of course, someone with his skills could probably make a velocity stack with a rat tail file, an aluminum pie tin and a stump.

    He did make it look easy, as he always does.
     
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  14. Ericnova72
    Joined: May 1, 2007
    Posts: 474

    Ericnova72
    Member

    The Shift Wizard and wraymen like this.
  15. I’m going to give it a try. He made a really nice bell on the end. My friend has access to a lathe, I’ve got to get busy.
     
    Last edited: Mar 20, 2021
    lothiandon1940 likes this.
  16. That's a good example. Note the width of the half-round lip. That's a critical detail that smooths the air entering the cone. A sharper edge without the radiused lip causes the air to tumble and restrict instead of a smooth and linear boundary layer that holds close to the inner surface of the cone.
     
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  17. Ziggster
    Joined: Aug 27, 2018
    Posts: 919

    Ziggster
    Member

    Probably not what you’re looking for, but I got mine from Speedway. They also have them in copper.

    766C41B1-990B-4730-9EE7-F6DE84007A6C.jpeg
     
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  18. jnaki
    Joined: Jan 1, 2015
    Posts: 6,222

    jnaki









    Hello,

    You mention a lathe. In our college days, we made spun discs and bowls with lids on a lathe. We used wooden shaped molds to spin the aluminum around the wood. The finishing was done on the table by hand, but the shape was done completely on the lathe. I tried making a full size disc, but the wooden mold shape was not shaped correctly.

    So I cut the product down to make a smaller coffee table dish/plate. It was not hard at all, but the spinning disc on the lathe did have some scary moments during the smoothing process with the “smoothed out” metal shaping spoon. Be prepared for a couple of mistakes and ripped aluminum as the spinning is mesmerizing. Use small amounts of pressure and no big movements on the spinning metal.

    If you have a lathe, it is not hard to make a wooden mold to your exact specs and spin a couple for your application. The flat aluminum spinning plate gets smoothed over the wooden shape and one could make a lot of different items, such as velocity stacks.


    Jnaki

    If I had a lathe at my house, I would have been making plenty of items for cars or home. Or if a friend has a lathe, you can do the work yourself. But, these days, if a product is able to be purchased online and it fits, go for it. it is as “easy as pie.” Some of the HAMB members’s garages look like our old high school metal shop/auto shop work spaces. So, if you have one of those… at least try it. YRMV

    Those You Tube versions are the modern way to shape the aluminum part. If you can do that, great, but the old way was to shape the metal like Moon Equipment used to do for the big wheel discs.

     
    wraymen likes this.
  19. Joe H
    Joined: Feb 10, 2008
    Posts: 1,096

    Joe H
    Member

    wraymen likes this.

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