which engine is stronger, YS 91 or Saito 100
Which engine is the stronger engine?
YS
Which engine is stronger?
YS
Which is cheaper?
Saitos I guess don't really know
There is a good reason that the YS engines are expensive. The YS 91 has way more power than the 100. Look at the RPM numbers for a 14x8. I think the YS is around 10,000 and the Saito is around 9,300. The numbers probably would look better for a 13 inch prop because the YS engines like smaller props at higher RPMs I believe. Save a YS 91 for a 60 size plane where the weight isn't that big of an issue and you have more room for the fuel tank.