(11-10-2018, 10:47 AM)jansens Wrote: Even 1 inch pipe seems small. I need to make an exhaust for my special and asked at a local exhaust place what the smallest diameter pipe they could give me was. From memory it was 32mm and that was a special order! What do people use when making their own pipe these days?
Simon
I recently laid my hands on a 4-into-2-into-1 tubular exhaust manifold at Southern Sevens (David Wilkinson) - originally for a 7 but it wil go onto my Rosengart as it turned out it will fit - that has been fabricated from 26.9 millimeters / 1.25 inch steel tube. Mind you.. I did have to give it more than a once over with emery cloth and VHT paint but now it looks the part.
Such tubing appears. to be available from this company (presuming You're Dutch. like me) https://shop.kloeckner.nl/Naadloze-buize...gJNMfD_BwE
you could also try motorcycle-custom shops instead of automobile exhaust specialist as these nowadays only seem to think in 'bigger bore is better bore' terms.
Motorcycle customshops also seem to fabricate their share of bespoke exhaust systems