[Relentless]

R360 only 248lbs, 208hp @2750 (222hp @3050)
R409 only 280lbs, 230hp @2750
R540 only 360lbs, 300+hp TBD

 

[Sig600]

That 540 would make for a great RV-10 motor

 

[majuro15]

Very excited about the 540! Cool to see some new engineering to the dependable platform!