I even have one of the .58 NIB. If you got one to run they were great but the castings were very poor and they tended to break at the exhaust port. The carbs are crap and when Horizon was the distributor they would send you the new improved crap carb upon request.
Then one day that light bulb over my head went on, in Russia and Europe in general Nitro is a high dollar product and no one uses it very much. I ran one of my .68s with 5% nitro and it ran a bunch better then with the 15%. Then it hit me, these are high compression engines and don't like nitro. I could have used some shims and lowered the compression but by then I was tired of fooling around with them so I have a few under the bench. My .68s ran pretty well most the time even with the 15% fuel and I have never had the case break on one, only the .58s!
I will not bring out more then one blend of fuel so if I own it then it's going to run on 15% or nothing.
MDS, Many Dead Sticks!!
Anyone want to buy some MDS engines cheap?? I think I have three or four of them?