Hummer H3 exhaust headers / manifold ( Part 1) Merge collector pipe 5 to 1 time lapse

Part 1. The consolidation of five exhaust headers into the one. DIY exhaust manifold. In this part, I'll show you how to make a connection of five equal-length Hummer H3 custom exhaust headers into the one. This is the first part of the series about the construction of the exhaust system for the Hummer H3. Hummer H3 with a 3.5L engine is a five-cylinder inline engine L52. My task is to make a reliable exhaust manifold with improved power characteristics. The factory pig iron exhaust manifold has severaldrawbacks and the biggest one is its fragility. The main load put on the short runner and due the temperature deformation, it cracks. In solidworks has designed the main elements of the exhaust manifold. The consolidation of five runners into the one is one of such unit. We want to make one outlet pipe for the favtory stock flange out of five pipes with given diameter at the certain distance. Or like in this case for the V-band with diameter 63 mm. In the future, the entire exhaust line and its elements will be made in this diameter. The length of the circle in the cross section of each runner is chosen based on the cross section of the oval exhaust ports of the cylinder head. The whole construction is made of pipes and bends 42.4 mm in diameter from stainless steel AISI 304. Wall thickness is 3mm (at the request of the customer). Usually, for a regular atmospheric exhaust manifold, the wall thickness is 2-3 mm. (Run from those people who make the exhaust manifold of 1.0 mm stainless steel) According to the drawing of the solidworks made patterns. This is the stencil of all slices. It’s applied to the pipe. Then, by my favorite tool (angle grinder), I cut out five identical elements of a future design. After processing by the "file" to the ideal fitting plane, all the pieces are assembled into the one. But these are two details in one. After welding, you can cut the core-the central part of the arch. It’s separately welded and become an internal part of the smooth arch of all runners into the one. The outer part as a single pipe is welded to the outside of the runners on the one side and to the flange on the other. In the next part, I’ll show the process which begin a construction of almost any manifolds. This is building of jig fixture , manifold jig. And also long and painful stage of creating of “equallengthing”. part2 link: https://youtu.be/VGiX4U52iDE My ►instagram: https://www.instagram.com/eclipse.razor/ https://www.instagram.com/sergbush/ ►FB: https://www.facebook.com/serg.bush.5 ►VK: https://vk.com/neomadc Liked the video? Click to subscribe, put like and do not forget about the bell! ►Subscribe here: https://www.youtube.com/user/neo20011?sub_confirmation=1 My work and editing of the video too, so if something is wrong then write what and why?))