Liran,

The Thunder Tiger (Taiwan) are NOT the greatest engines on the block! I would say the Magnum XL (China) is a better made engine. You can get a traditionally RINGED GMS engine NIB .46 from Tower (China) for nothing and they SCREAM!! They are GREAT for the money! Also now that Great Planes bought the Super Tiger engine and moved the plant to China....you can buy a NIB RINGED .51 NIB for only $79.99 and they did away with the adjustable low end needle valve because people were messing with them and then would complain about the performance! This engine will take a 8 lb plane straight vertical untill you cant see her anymore!! I am partial to Webras (austria) and especially the older Italian Super Tiger G .60 ringed engines.......so many people CANT set the low end needle on the carb right, but you can do it in 4 minutes and they are BEARS! For a .46.......I would go with a Magnum XL, a dual bearing ABC engine that will tear up the OS FX all day long!! I do engines for a living and if you can get a "MAGNUM PRO" .46 then your REALLY rockin! this engine is not only a "split case" with a front and rear bearing....but it IS ringed! It has the "DYKES" ring on the top of the piston. As pressure is put at the center of the top of the piston....the "DYKES ring" (looks like a plate on the top of the piston, but IS a ring) expands to the sleeve and THAT my friend is a POWERHOUSE indeed! A DYKE'S type ring is a "L" shaped ring that fits at the very top edge of the piston. Many people can not even see it as there is no piston material above it. Dyke's rings do not feel like they are working (no compression) when the engine is turned over by hand. A dyke's type ring is pressure activated, (it is like a dyke) when pressure pushes against the inner side of the ring it is pushed out tightly to the cylinder wall. When it is running past the ports no pressure is pushing it so there is less friction. This is why dyke's rings produce more power than conventional type rings!!! Stay away from the Thunder Tiger is my advise to you! I wont call them JUNK.........but I will let you figure it out!!

The Slip!