R/C Tech Forums - View Single Post - Sirio engines thread

01-19-2007 | 03:07 AM

#1790

dameetz

Tech Elite

Joined: Mar 2003

Posts: 2,575

From: The Sky

Any body here using the STI 5 port version? Hows the performance compare to the 3 ports? can I use 25% nitro on this engine ? coz my 3 ports Sti somehow perform best when I use 16% nitro.

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