www.vinjefab.com looking for product testers for CUSTOM 3D PRINTED MANIFOLDS

Introducing my take on a 13b manifold, 3d printed out of 316L stainless steel. This is a high temp, corrosion resistant material. The runners are 0.108” and the flanges are ˝” thick.
These manifolds are better than the standard “cut and welded” manifold in multiple ways. 3D printed manifolds offer benefits over typical manifolds such as runners which are tapered from the engine exhaust port, all the way to the turbine housing. This increases exhaust pulse velocity and is only possible with 3D printing and casting, the latter can be expensive for one off projects. Theoretically, cut and welded manifolds actually slow down air velocity with wall friction, weld seams, and exhaust gas temps cooling.

Wastegate placement was a priority for the design, placed in the optimal location for flow. The mating surfaces of the flanges will be sanded flat and also designed to use the full surface area of the gasket. This minimizes chances of blowing out gaskets. 3D printed metals are usually denser than cast but less dense than billet.
3D printed manifolds have some cons. This can include surface finish, and cost. Current 3D printed technology leaves a slight rough surface finish. Although for an exhaust manifold this is negligible, and a small surface roughness will keep air from sticking to walls of manifold. Cost is heavily dependent on the material.

My manifolds offer the benefits of a cast manifold with the customizability of a welded manifold. Since these are 3d printed, you can custom order them to whatever you would like!
Options Include but are not limited to:
-EGT sensor bungs
-EMAP sensor port
-AFR sensor ports
-Any turbo flange (T4, T3, T6, divided/undivided)
-Wastegate type/brand (wastegate flange welded on)
-Wastegate quantity
-Wastegate location
-Wall thickness
-Flange thickness
-Equal/Unequal Runner length
-Material type (stainless($), titanium($$), inconel ($$$))
-Style (side mount/forward mount)
-Swap friendly!! (Best to send 3d scans of turbo placement and engine placement for optimal design)

I am looking for some people to test these, let me know if you would be interested. www.vinjefab.com








(CFD screenshots show the max flow of a 50mm turbosmart progate, and also the wastegate 100% closed. The inlet pressure is hard to make accurate since the engine makes pulses. I ran 3 different simulations that varied the inlet pressure and they all showed velocity increase with the wastegate closed.)

 

Would this be for 13B REW or 13B T ?

 

It can be for whatever you want! Currently I am designing one for a RX2 and a RHD FD. The one in the photos is for my personal FC!