Originally posted by Corse-R
Never tried to compare side to side. Next weekend I have a club race with 1/8 cars, so I'll try to compare them if you're interested.
Yeah, I am interested, please let me know how
I've had the .21 Sirio for a while now and cant
seem to see the difference in power especially on
the top end considering it is rated higher than
the other traditional motors. But it is a pretty good
motor, no mistake about that..
I ran into leaking problems with the carb even when
I was just breaking it in. When the motor really wouldn't
run because no fuel was being funelled into it, I
tried to use one of my RB carbs and it was a perfect fit.
It ran the motor pretty decent too. I just wonder if the
motor is holding back some power that it can give out
since the RB Carb has a smaller air inlet diameter than
the Sirio's. Another guy is running the same Sirio .21 &
his car seemed stronger (both top and bottom).