YS vs OS

Hallo!!
What shall i bye to my Raptor 90SE?
OS91 C-SPEC PS with Perry Pump or YS91ST??

Best regards
Janne

[vcampos]

Hi Janne,

What I’ve heard and seen is that the YS engine is an engine to highly consider.
The engine is easier to start than the O.S. Janne, I currently have an OS 91 and
to start it, let me tell you, I have to bring out my gas powered starter just to
get this thing going

Also, The YS runs as smooth as the OS 91 w/pump. In a few weeks I should
be getting a YS 91 and I can’t wait till I get my nitro smelly hands on it.

Well, good luck on whatever engine you decide to get.

See You At The Field,

Valentine

Hi Janne,

Both of these engines are pretty damn good, though they both have problems! The OS likes the Mid-Range, the YS prefers bottom and top end. From what I hear, the YS is much easier to start than the OS, and some beleive that the YS is 'overall' a smoother engine. Best bet is to see them both in action at a club, speak to the pilots and see how they feel. If it was me, I would buy the O.S.