Manifold tube to turbo flange transition
#1
Manifold tube to turbo flange transition
I am wondering how everyone is getting a smooth transition from the exhaust runner to the rectangular flange. I am working on making a manifold and want a smooth a transition as I can get. My first thoughts are to get some DOM tubing and make a mandrel and press/hammer the tubing to shape? Anyone done this? Does someone already do this with relatively thick tube/pipe? I have seen the thin 16 gauge transitions but nothing with at least .100 in wall.
#7
Rotary Enthusiast
AHH YES, the art of metal working is coming back, who woudathougt, anywho 1st do the best you can on making the manifold ,vise it, heat it, hammer it, shape it, then smooth out the inside with carbide burrs as best you can , then send it out for EXTRUDE honing, finally have it CERAMIC coated inside and out, betcha nobody elses manifold will make anymore power than yours. Ron
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#8
The General RE
You've got it easy with .100 wall. I foolishly decided to use 2" schedule 40 304SS pipe (3/16" wall). A torch, a vise, a big hammer and an anvil eventually worked for me.
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