Little velocity stacks. Not sure if I'm 100% satisfied with these. Might redesign and fab new ones.

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Joshua

Is that for this?

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Yeah....Im the one who destroyed this rare, vintage automobile.....

Uh, no. The pieces I made will go inside a plenum.

I found that auction though. Looks like it could work really well.

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Joshua

Is the piece in the middle the die for forming the stacks?

CJ

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Part of Tyrde-Browne Racing

what diameter are those? and what size press are u using?

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'99 T/A
plannin out a 64-66 turbo SL6 barracuda

Yes, the rusty chunk of 2.5" bar stock pictured is the die for forming the 1.75" OD 16 gauge tubing. I used a friend's 30 ton press and didn't have to work it too hard, but there is some pressure involved. I polished the radius on the die and applied a little grease to make things as easy as possible.

I might make another die and taper the entire length of the velocity stack as well as form a radiused entry on the end. I'm just not sure my friend's old chop saw will survive cutting another piece off the 2 1/2" solid bar.

I made my first tapered runner tube today, but had to get to work (swing shift) before taking any pictures. I also started roughing out the manifold flange. Right now it's just a big chunk of 1/2" plate with 6 round holes in it. Hole saws don't seem to like cutting through steel thicker than the teeth are tall. It was alternating between binding up and having so many chips under the teeth it wouldn't cut. I found that using a vacuum to clear the chips as I drilled/cut worked quite well.

More to come as things progress!

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Joshua

I'm eally glad you are working on this. That is pretty cool. I am eager to see the progress, final product, and results. Good luck.

Sam

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damn, ur building this thing thick huh? seems like 1/4in would work just fine.

keep us updated. im planning out a similar manifold i think, supraish

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'99 T/A
plannin out a 64-66 turbo SL6 barracuda

See the difference in the tubes? It's subtle, but it's there.

The plate is 1/2" as that's the thickness of the original manifold flanges. This is just the beginning of the intake flange. The ports will be rectangular and the flange will be cut and trimmed into six individual flanges like a stock manifold. There will be very little of this big @$$ plate left on the finished product.

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Joshua

I thought of something earlier. I'm not going to cut my my big plate into five individual plates after welding up the runners and plenum. I think I'll make a jig out of the plate to locate individual runner flanges. This way I won't have to start from square one if I decide to make another manifold. Doing so will make shaping the flanges easier since they will be much smaller and lighter. I just wish I had a vertical band saw. Actually, I wish I had a horizontal band saw too, but I really don't know where I'd put either.

I did get the other 5 runner tubes tapered, welded and smoothed. I even had visions in my head of polishing the tubing and having the finished product chromed, but I'll save the bling for another project. The Valiant is to be a clean, but bare bones performance car.

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Joshua

Keep feeding us your photos.

Sam

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Josh
Anything new on this manifold?
Thanks
Frank

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Scrapple: Because a mind is a terrible thing to waste.
73 Duster - Race Car
66 Dart Wagon - DD
178" FED
82 D150
All Slant powered

No updates, sorry. Too many other interests and projects. I'll come back to this one.

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Joshua

Hey, that sounds like me...............

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes