Originally posted by racerchan
I am starting to build up some disrespect for these sirio engines. . need some pychological help
I saw a couple run at our Jurong Track and they seem not as quick as claimed . . again . . . 1.8hp . . . .
Ummm, have one 'ROAR Legal' and is pretty fast. 1,8Hp is BS. Maybe 1,35Hp is more real number.
Compared to my JP 12, my Sirio is 0.02 sec slower on my track, maybe it not have those wicked sound at high rpms, but things go pretty fast. Well, my NTC3 with the JP sounds better, but is quite expensive to run on practice and local races, better I stick with the Sirio, JP is reserved for serious races where HP is needed.
I've disasembled it and for not being a 'ported engine' is pretty fast, for sure that some porting helps a lot, but for their price is very, very good.