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Ok so my best run with my meanmachine was 53mph on 30c 4s with cheap feiago motor. Now I have neu 1515 1y hydra ice 240amp m440 prop and want tooo run 2 5s in parallel so would 5s 30c 3850 be enough to power it or would 4400 45c or 3850 65c create more power & speed even though the r heavier lipos? All r thunder power choices