Engine question...
 

This has probably been asked and answered, but I was wondering if someone can give me a comparison between the OS 1.08 FSR and the OS .91 FX. My next plane will be one for this size of engine but in looking at the specs., I don't see a big difference between the two. What are the advantages and disadvantages between them.

The plane I am looking at is one of the Edge or 300 variety, (not sure which model or brand yet), in the .60 to .90 range.

Would appreciate any help....

Thanks,

T.