Modifying a Late model converter type exhaust manifold

[Anlushac11]

In light of my recent budget cuts I am revisiting a old idea.

I want to take my old catalytic converter exhaust manifold and grind off the lip to form a flat flange surface so I can bolt on a plate which will have the T3turbo opening cut out and studs mounted in it.

I can find about 1/4in to 3/8" mild steel. Im thinking I need 1/2in thick. I want 1/2" thick to hold weight of turbo and to also allow me to radius the inside a bit to help improve flow.

I do think a older style manifold with the large opening and a J pipe would flow better but Im unemployed now and I have two of the converter style manifolds laying in garage.

Is it possible to stack two 1/4in plates for this purpose? pro's? Cons?

Any input appreciated.

Thanks,

Mark.

 

[rbohm]

In light of my recent budget cuts I am revisiting a old idea.

I want to take my old catalytic converter exhaust manifold and grind off the lip to form a flat flange surface so I can bolt on a plate which will have the T3turbo opening cut out and studs mounted in it.

8) sounds like a good use of that manifold.

I can find about 1/4in to 3/8" mild steel. Im thinking I need 1/2in thick. I want 1/2" thick to hold weight of turbo and to also allow me to radius the inside a bit to help improve flow.

I do think a older style manifold with the large opening and a J pipe would flow better but Im unemployed now and I have two of the converter style manifolds laying in garage.

Is it possible to stack two 1/4in plates for this purpose? pro's? Cons?

Any input appreciated.

Thanks,

Mark.

its possible to stack 1/4" plates, but remember that you will have more possibilities for leaks. perhaps a better idea would be to use the old catalytic converter housing by getting rid of the converter element, and then afixing the J pipe to that.