RCfreak ive been to the RB site many times and i did search everywhere, but they dont provide any specs on there engines such as hp and prm. I looked at the forums also through just about every thread and still cant find anyone saying what the exact hp or rpm is on either of the RB engines.
BTW i do search a lot more than you think, its how i found this site and most of the sites having to do with rc. I have been to the end of the internet and back.