Please would someone tell me which nitro engine to use on my boat. I have a full working electric Kyosho Jetstream 800 that I want to convert to nitro. The standard model uses a .16 engine but I'd like to go a bit larger. I have a Ripmax and an Irvine catalogue for reference but there are quite a few engines to choose from. I would spend up to about £200 on the engine so I have a few choices. No gearbox, I'm planning a direct drive system. Any ideas?? I have also seen in the Irvine catalogue, an outboard/sterndrive unit for about £250, anyone used one? Any info would be great.