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Was your old long pipe Ultrathrust made for the G90 Tigre? I have one that is made for the Tigre G90 and was wondering how close the bolt pattern is between the SK90 and the G90. If you happen to know. TIA
Ed Cregger
Ed
I was just checking on this very thing today. I was wanting to try one of my SK 90 engines in my Great Planes Shoestring Racer, and was checking out various pitts mufflers that would work. Kangke, and ATS do sell a pitts exaust to fit this engine, but I was checking to see if there were any others that were compatible with this engine. I came up with after some checking that the SK engine exaust mounting holes are 52 or53mm from center to center, or 1.660 inches from center to center. I did not see any pitts exaust while browsing tower that falls within these numbers. Maybe there are some that would work by extending the mounting holes on the exaust, but I am not sure. So I am also curious as to what exaust pipes are compatible with the SK 90 engine, and are interachangable between what other manufacturer?