Making an expansion chamber

[EgliHonda]

Will try some offcuts this weekend to see how the welding looks. That'll determine how I proceed really. Have obtained copy of AG Bells info, great stuff in there - will see how the web design looks compared to some of his designs. Just have to arrange quality time in the shed now...

[koba]

Will try some offcuts this weekend to see how the welding looks.

If you have a MIG spend a bit of time setting it up on bits of scrap, if you weld the whole thing together in small tacks it takes ages but is a piece of piss to do with hardly and experience.

EDIT: Do a bit of reading on basic welding theory RE good penetration etc...