Originally posted by n1technik
man... it's pain in the @ss to choose motor. anyone seen or running sirio legal motors?
still deciding between sirio and mr12
n1technik,
From my observation and experience.
When i had the stock MR-12 and a close friend of mine running stock Sirio (Punisher) on the same gear ratio, same 705 and same 30% nitro, the Sirio manage to catch up with me slowly on the back straight (and sometimes pass me
). Both engine perform equally good. The MR-12 is easy on the tuning while the Sirio somewhat OK on the tuning. The Sirio is fast on the top end.