In fact, this video was shot almost by accident, thanks to the "crunchy" bearings of the Saito FA 325 impeller, because while I was waiting for new, ordered bearings, the idea came to me to compare very similar in appearance, and very different in price engines, as OS FR5 300 and ASP FS400 AR.
Both engines are N.I.B., has never seen fuel and it was very curious to get them compared before comparison run.
Should say, that both engines shows very high quality of machined parts, and attention to each small detail.
Hoping, the weather in the next days will be good enough to give me an ability to continue the story of this beautiful engines on the bench to compare them head to head.
Thank you for watching CrazyEngines channel !
Have a nice day !