Originally posted by afm
Current Sirio engines are:
3 ports Slide carb SG crank:
S12 WCR World Cup Replica
S12 TRP E EFRA specs
S12 TRP I IFMAR-ROAR specs
S12 TSP Econo Model
3 ports rotary carb SG crank:
S12 TRR E EFRA specs
S12 TRR I IFMAR specs
5 ports Slide carb SG crank:
S12 TUP 5 ports
Don't know of any factory modified Sirio 5 ports, maybe it's modified by somebody else. BEWARE.
The only Sirio based engines that I now as factory modified are the Lamberto Collari engines, modified by his father Mauro Collari.
that are sold by www.werksracing.com and as i speak they only had the regular Collaris 3 and 5 port, but were going to import the Mauro Collari modidfied versions.
AFM
hi afm, i bought the 5 ports two days ago and it was confirmed by the shop owner that this is the 5 port factory modified.. he even showed me the piston of the other 5 port.. i've attached some pics of it.. thanks!