I doubt it. The Uproar 40 and Dazzler are 2 of the most popular kits (now ARF's) at our field and they fly well with all kinds of engines. The OS 46 and 40FX's as well as the ST 40 & 45's, OS46LA, Tower 40 and 46's plus some 60 and 70 size 4c. Not sure I know what a SC40 engine is but if its a ball bearing 40 size engine it will do great.