I'd stay away from Tower Hobbies engines. At best, they're a copy of the OS, like most off brands are. If your TT is a Pro series, it should run well and give gobs of power. Unless it's been crashed or run really lean for a while, I believe it's worth salvaging. Let a good engine man look at it for you. If you just really need to change engines, I will recommend the Super Tigre. They are VERY reliable and user-friendly. For a few more bucks, you can get a Webra Speed. Talk about power...

Dr.1

PS If you're really gonna trash the TT, send it to me, I'll pay postage.