Was about to comment on this. As soon as I go over 100x timewarp, things start blowing up. I've tested this on a clean install with only Heat Control and Near Future Electrical (and HyperEdit, for testing purposes, but I doubt that's it), and it still happens. It's really easy to reproduce as well. Take a probe core, an MX-2 reactor and two XR-4500 radiators, put them in space, extend the radiators, start the reactor and increase warp to above 100x. The MX-2 overheats and explodes. EDIT: And you already commented on that. Is it possible to detect time warp? Maybe add a workaround that sets heat output to zero when using 100x+ time acceleration or something similar? I realize that would be more of an Near Future Electrical Issue, but still.