What have you done today with your Austin Seven

[jansens]

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. 

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