If you want to wait until after this weekend, I am going to try the MGM 160 with my lehner and see how it works. So far the only thing I have tried that can go over 10mins without getting too hot in "race" conditions is the BK 201120 with a Lehner 1950\6. All the less expensive motors will overheat unless you are just bashing around. The MGM is a little cheaper than the BK so it might be a better way to go. If you plan on racing, I wouldn't go any less than these or you will just overheat.