OK, if you have seen my other post, I have a tt .25 that is dying a slow death....

some point I need to replace it with an upgrade motor.. currently it is in a TT Lazy P-51, but would like to use it in other planes too
maybe combat spad, etc. etc.


Suggestions on a good .25 (or similar....larger is OK) sized engine that doesn't break the bank

should I step up to the .35 class of engine? WEbra .32? etc. etc.