Enya engines are no different than any other brand of engines. Each and every one needs optimization (prop, glow plug & compression adjustment) for burning various amounts of nitromethane. Some engine manufacturers are still doing things the old fashioned way of providing the engine out of the box with the most compression. Enya used to do that and they still might. That is a service as long as they provide a cylinder head shim or two to lower the compression. Some folks cannot access low nitro fuel and being able to lower the compression is very important.


Ed Cregger