don-f
Well-known member
I just thought I would share. I was starting to build a header for my 70s GTC Civic being restored for vintage production racing.
I started printing pieces on a 3d printer to help mock up the thing. This helps a lot. I can tell you what doesn't work pretty easy now without wasting a lot of time cutting and welding. They are reusable if you are careful pulling them apart. The parts are modeled after the 3" radius bends I have.
I built a jig for cutting tubes for the collectors also
The collector jig gets things close, but each tube is slightly different so requires some hand fitting. Burns has nothing to worry about, but it will do. The materials for the plastic bits are cheap. About $30 total for what I have made with many mistakes and I broke a few. The parts take a long time to print but they run without being watched so its OK.
I started printing pieces on a 3d printer to help mock up the thing. This helps a lot. I can tell you what doesn't work pretty easy now without wasting a lot of time cutting and welding. They are reusable if you are careful pulling them apart. The parts are modeled after the 3" radius bends I have.
![51209687157_2ed18bd7a9.jpg](https://live.staticflickr.com/65535/51209687157_2ed18bd7a9.jpg)
![51209688547_5c135277a1.jpg](https://live.staticflickr.com/65535/51209688547_5c135277a1.jpg)
![51211162329_cb4535f5a9.jpg](https://live.staticflickr.com/65535/51211162329_cb4535f5a9.jpg)
I built a jig for cutting tubes for the collectors also
![51209688492_5341d38a6e.jpg](https://live.staticflickr.com/65535/51209688492_5341d38a6e.jpg)
![51211162309_08aec5904f.jpg](https://live.staticflickr.com/65535/51211162309_08aec5904f.jpg)
![51210604533_89f6e05e27.jpg](https://live.staticflickr.com/65535/51210604533_89f6e05e27.jpg)
The collector jig gets things close, but each tube is slightly different so requires some hand fitting. Burns has nothing to worry about, but it will do. The materials for the plastic bits are cheap. About $30 total for what I have made with many mistakes and I broke a few. The parts take a long time to print but they run without being watched so its OK.