I realize this thread is probably dormant but as a former 60cc twin owner, I loved my engine and had it on a modified 1/3 spacewalker. It flew great and once I got the right glow plugs it cooked and never gave me a problem. ST did change the porting to fix the rear cylinder issue and this did fix the problem. I would jump at the chance to own another ST 60 twin. Wouldn't hesitate.
Also, I've run a quadra 50 on a Giant scale sweet n lo stik, but I would be hesitant to put all of that engine (ST twin 60) on one. An OS 35 powers a GSSNLS with power to spare. The ST twin 60 will bring Lots of additional weight and un-needed power. I've seen twins pop the engine mount firewall before so you might better be cautious with this idea. I'm all for over powering aircraft, but sometimes you can go a little too far!
Last edited by xkadet; 10-31-2014 at 08:05 AM.
Reason: additional comment