Originally Posted by
1QwkSport2.5r
I love the tech notes for that CVRX .18 engine - fuel required for vehicles with 5-30% nitromethane and no less than 18% oil content. LoL.
I would buy a Dynamite .19T over the OS. It's cheaper too. The fit and finish may not be the same, but they run and run. If you wear it out, a piston and liner will cost you $50 instead of $82 for the OS.
http://www.rcplanet.com/Dynamite_Mac...FQaOaQodRu8C8A
OS have always been like that with fuel recommendations (dunno but maybe because of plane background)....never had a .18CVRX but do know that they are widely used in vehicles using side exhaust engines.
The engine you linked is a rear exhaust?....A really good rear exhaust engine is the OS .18 TZ...
...but besides all that I am not even sure the OP needs a new engine yet....once we see broken bits then we can think about what will be appropriate....remove backplate on original engine and have a look Krokodyl.