Supermicro V8 Crossplane steam engine total displacement

My handmade brasssteel V-8 engine on an early run with compressed air. Bore is 9mm stroke is 10mm. Total displacement is . Cylinderbank-angle 90°. Crankshaft in crossplane design. Exept some crankshaft parts everything is handmade. The flywheel is just added to give it a smoother run at lower rev`s. Crank- and camshaft in ballbearings. Enjoy watching.