30-01-2019, 09:56 PM
(29-01-2019, 01:18 AM)jansens Wrote: I was going to weld mine mainly because I recently got a TIG and need and excuse to learn to use it! I have some 1 inch thin wall pipe, galvanised but I will strip that off before welding. For bending I was going to make some formers from hardwood to bend around. I might need to do the fill the pipes with sand trick but when making my body frame I was able to bend that tube fine with nothing but a hole in a block of wood and it worked ok.This was my first attempt... I bought a few lengths of 1 1/8 tube and an old plumbers pipe bender... It's a copy of the original Speedex one also pictured.
I was going to try the four straight pipes coming out then curving into a tapered collector. I know it's not the most efficient but its easier for me to try to make as a first go and it will suit the car and work with the body style I have. And I can make it all in one flat plane with simple bends rather than trying to work out some complicated 3D shape as a first attempt. I really just need something I can use when I first try to start the car.
What diameter should the outlet be? About 30mm?
This sort of thing (from this page https://www.speedwellengineering.com/news/page/2/):
Also I got an answer to my bolts question (thanks David). They are special bolts, will order those tonight.
Simon
Patience is definitely needed... But it is nice to get out in the garage and play. It's been so long since I made progress on the Silverstone I found myself pondering selling it.