Sunday I had a chance to see this engine for the first time. From what I am told, the engine was just broken last week. It was pretty much tight form what I could see. My tc3 went down,(damn 1-way) but I was able to use his fw-05rr with a rody .15 in it. He used his g4 with the os.18 tz in it. Let me start by saying his rody was always real fast and he could never control it well. We ran on an 1/8 size track. We would punch at the same time, and WOW the OS did seem to have more topend and was at least as fast bottom to mid range. For under $200, I think I found an answer for the 1/8s that I love to play with. Hell, I know its not legal and oh I love my ps12, but when playing with the 1/8s, this could be the ticket. The only thing is, I am not sure on the gearing of the 2 cars, but I an sure he had them both beared up.