Hey OldMiniBikes, it’s been a while but I’m finally back and I finally got my Carter 2336ZX 2 seater back on the road with a fully built (my first personal build) Predator 212 and it has a 20 series torque converter on it. Laugh now it you know where I’m going with this. My engine is turning well over 6000 rpms as I have a Trail Tech Vapor (love it!!!) installed which is wrapped around my upgraded msd spark plug wire and boot connected to an upgraded coil. Well before I took this thing out for the first good romping I didn’t realize that this series torque converter was not built for this amount of rpms. I rode it for hours with different kids as my passengers and it rocked with no probs. Later that same day my buddy stops by and I let him take it out for a spin. He rode it for like 2 minutes and the dang thing cut off on him while he was trying to turn around and head back. He proceeds to hop off and try’s to pull the cord to restart it and he noticed that it tried to pull away from him when he pulled it. I run down there and notice that the torque converter is stuck in the engaged position hence why it was pulling away as he pulled the cord. We push it back to my garage and I take the torque converter driver apart and notice that the weights were in fact stuck in the engaged position and twisted slightly which is what was keeping it from retracting. I also noticed that one of the two garter springs was flattened in a couple of sections. It was after that when I started to research the issue that I encountered and discovered that the series 20 torque converters are only rated up to 3600 rpms which explains a lot. So, with that being said, my question is what are my options from this point? I’ve seen the upgraded aluminum weights and different colored garter springs (which seem to only increase or decrease the actual engagement rpm but I haven’t come across and data on what rpms each colored spring goes UP to) which I’m hoping will assist me in this situation as I can not afford a series 40 torque converter at the present time. I’ve seen a tiny bit of info out there that also speaks to some aluminum mod weights but I haven’t found anywhere to purchase them. So, do I have any hope in modifying my series 20 torque converter or is it a must to upgrade to a 40 series or even higher options then that? Thanks in advance for any and all advise/recommendations/comments/suggestions that you all may be able to offer me. Have a great day!!!