RCU Forums - View Single Post - OS 91FSR
Thread: OS 91FSR
View Single Post
Old 04-18-2010, 12:11 AM
  #4  
proptop
My Feedback: (8)
 
proptop's Avatar
 
Join Date: Oct 2002
Location: Rome, NY
Posts: 7,036
Likes: 0
Received 2 Likes on 2 Posts
Default RE: OS 91FSR

13x8...14x6...14x7...15x6
The .91 FSR is a good, powerful engine...a bit heavy, but excellent quality. Don't lug it down too much...let 'er spin up some...prop it for around 11 to 12K.
It will turn a large prop, but mine seemed happier if I let it rev. I used 10% nitro and an O.S. #8 plug...14x6 prop.