[b]Tot:

Something like that will have an adverse effect on any air breathing engine.

Sounds like you want the Magnum engine with a Bru-Line fine mesh air filter. Tower Hobbies stocks the filter and the Magnum engines.

On the engine, Hobby People is the importer of Magnum, they jhave been known to put the XLS 46 on sale as low as $50 - now if you can wait for the next sale...

Bill.