people that sell adaptor kits sell and adaptor flywheel in the kit. It has the VW ring gear and clutch but the other engines crank pattern.
This is what I did to my flywheel
http://www.offroadvw.net/bajawes/V6_baja/Cad/flywheel_instruct.pdf
Basically I got a VW ring gear machined off (one of the one piece flywheel ring-gear combos), I then got that pressed and welded onto the mazda flywheel.
Wes -
www.offroadvw.net - 200HP Quad Cam V6 in a VW Baja - with climate control...
🙂
www.taylorcycles.com.au - My DH MTB racing brothers shop.