stickmantijuana

iTrader: (1)

I have schedule 40 manifold which I remade with 316. I have a quick question. How do I make a smooth transition from the 3 joined pipes into a round pipe? The shapes are little different. Schedule 40 is too thick to hammer form into any shape... or is it? I could grind out the inner diameter but before I do that I wanted to ask for what people usually do in this situation... I don't want to get a new collector because I don't want to remake the primary runners.

any suggestion is much appreciated. Thanks!

lastphaseofthis

iTrader: (8)

i put sch 10 in a vice and make it more oval to match half a t4 divided flange. i think 10 is thicker?

stickmantijuana

iTrader: (1)

nah schedule 40 is much thicker. almost 1/4" in thickness.

lastphaseofthis

iTrader: (8)

i think you have 10. if its 1/4 inch.. this aint pvc

hsmidy

Heat it prior to forming, you'll find it much easier.
Just re shape the end of the new piece you are adding on.

WANKfactor

iTrader: (1)

Heat it up locally as hot as possible and smack it with a bfh and a cold chisel.

Or use a reducer cone, fill and grind.

stickmantijuana

iTrader: (1)

lol tried chisel with 4lb hammer but it almost broke my hand instead. Tried to press it with harbor freight press on lead shot but it kept on slipping...

sooo, I used my tig welder to fill and smooth the inner contour of the collector through the wastegate hole. worked out pretty well actually.