I’ve been working on the airbox/ filter .
Airbox from Norvil - kind of on your own as to filter . Got a Fram number from NOC site but pretty much unavailable here in the USA and what costs $ 15 is + $30 or more shipping from across the pond . My buddy that owns a few NAPA stores found one of the right thickness ( width ? ) and of a diameter that was a little large .
The issue is the carb intake on the airbox does not reach the inside of the filter so I made a duct of sheet brass and cut the filter to butt into the duct. I laid out the pattern for the duct as one piece but the sheet brass wasn’t big enough so I had to make the end cap separate. For fear of the fasteners coming loose being ingested I used brass machine screws soldered to the duct and nuts on the outside which will be staked or peened also . Scotchbrite pads cut as gaskets .
I think I have got it arranged so the engine only ingests filtered air .
The volume of the filtered air looks to be close to the original D shape Vokes that NOrtOnelecr@ posted above.
[ATTACH=full]119064[/ATTACH]
[ATTACH=full]119065[/ATTACH]
[ATTACH=full]119066[/ATTACH]
[ATTACH=full]119067[/ATTACH]
[ATTACH=full]119068[/ATTACH]
Fingers crossed…
