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which is highest revving .61 nitro engine with Tuned pipe out there?

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which is highest revving .61 nitro engine with Tuned pipe out there?

Old 08-07-2013, 12:43 AM
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orthobird
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Default which is highest revving .61 nitro engine with Tuned pipe out there?

any one know what brand or combo engine + tuned pipe is available to get the most rpm

looking for .60 size engine to go on sundowner 50???

Jettfire 60?
Old 08-07-2013, 12:49 AM
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jamaicaman
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OPS 60 Super SPP VAE, but maybe the sundowner explodes with this engine
Old 08-07-2013, 02:44 PM
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Jett 56 with a Jett muffler. Proven combination that works well in that plane. Call Dub and tell him it is going in a Sundowner and he will send you the correct muffler adapter.
Old 08-07-2013, 03:34 PM
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speedracerntrixie
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Agreed, the Jett 56 and Sundowner has been done and sorted out. I think it maxed out at about 130 mph, not blazing fast but maybe just about as much as the Sundowner can handle. If I was going to put one together for speed I would equip with a YS 70 and make the wings non-removable. Gluing the wings onto the wing tube would make for a much stronger airframe. FYI, high RPM doesn't always mean more speed. I have a Rossi .45 powered pylon airplane that I can prop to make 18K rpm but it flys much faster when propped to run 16K rpm.
Old 08-08-2013, 11:31 AM
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The sundowner is a plane with a lot of drag. When you add weight you need a higher angle of attack to make it fly. A full sized 61 engine with full pipe, firewall, wing, and tail reinforcements will add 1.5-2 lbs more to this plane. you will be better of sticking a YS 70 FS in it and running high nitro

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