Just found this out but apparently there is a misprint in the YS SR91 manual on it's maximum RPM. The manual states 17000 RPM, this is incorrect and happened because they copied a manual from another engine and forgot to update this figure. The actual 'safe' RPM range for the YS SR91 is 15600-15800 RPM. Which translates to around 1900 RPM of headspeed on a T-Rex 700.
Just thought I'd let you guys know before you wreck your engines prematurely by running them too fast.
Just thought I'd let you guys know before you wreck your engines prematurely by running them too fast.

