Re: Flaring tubing for turbo flange ID
 

Would you guys recommend me cutting into the face of the ubend to make some tabs that I can bend out and reweld together? I had someone recommend I do that but I'm not sure of how well it would work.

Re: Flaring tubing for turbo flange ID
 

do like beau suggested, and just use the round end of a ball peen hammer to flare it out a bit. shouldn't take too much effort.

Re: Flaring tubing for turbo flange ID
 

That flange was designed to be used with 2.5" OD tube (2-3/8" ID) w/ a .48 or .63 a/r. I'm not sure what size a/r your housing is, but I know depending upon the manufacturer the discharge holes can vary quite a bit w/ the different a/r's. I would suggest going bigger then smaller. For instance, with a certain production kit we manufacture, going to 3" downpipes using a 2.5" to 3" cone immediately after the discharge flange netted 38 horsepower at the same boost levels. Same downpipe geometry, even the same radius, just sized larger using a transition cone.

Re: Flaring tubing for turbo flange ID
 

get a 2.5" bend and weld it to that dp flange. the opening of the flange does not have to match the piping.

Re: Flaring tubing for turbo flange ID
 

It's a .48 turbine housing. I have a 2-3" cone I'll be using to transition almost immediately to 3" after the bend off the flange. It will be 3" after the downpipe the entire way.
I guess I'll try flaring the tubing some more with the ball peen and make something that works. If it doesn't work the way I want for a while then I'll make downpipe edition deaux and cut the 2.25" section off. Right now I just need something that will work and last a while so I'll throw it together and make it better the next time around, thanks guys.

Re: Flaring tubing for turbo flange ID
 

Just get a 3" bend, use a vise to square the tube a bit, and weld it directly to the flange. Unless you suck at welding, you can easily fit flared nuts around it. Otherwise just get a 2.5" bend and call it a day. The in-between fix would be using a 3" bend and half of that cone between the bend and the flange, so that you come off the flange with the ~2.75" OD spot on the cone. Installation is only a bitch once or twice, but the added power from 3" piping can be felt each time your turbo spools (earlier) and makes more power.

Re: Flaring tubing for turbo flange ID
 

I took a 5" piece of the 2.25" ubends leg to the local muffler place. Had them flare the tubing to fit inside the flange. Then I cut the flare down to like 1.25" long and used it as an adapter. Downpipe is pretty much done, I'll finish it up tomorrow and post pics.

Re: Flaring tubing for turbo flange ID
 

reamer or exhaust tube expander. both are pretty cheap. if your tube is too thin/cheap it will split tho

heh what i did once was take a tapered centering ring off a tire machine and hammered it into the exhaust tube, it worked great