Originally Posted by
Garage19
Due to its material properties the mild steel flange is less prone to expansion and warping than the one constructed from mild steel.
I believe he is implying that he uses the correct grade filler wire to join 316 stainless to mild steel.
Yes i'm well aware of this, but the flange doesn't get as hot as the the pipes and the pipes expand also.
The only difference between the 2 is the flange will expand more because it is physically bigger, if this was seen as a problem in his manifold construction then simply adding slots between the cylinders would cure this.
Its an interesting method and i'd assume he'll be using something like a 309L rod to weld the 2 together. But i can't see an advantage other than cost.
Edit, manifold looks cool bolted to the engine with turbo
