Im after information on Maxpower RC engines.

A search for websites comes up with a laptop website.

The Maxpower RC facebook page doesn't hold much detailed information, it's more of an advertising platform.

Are they OEM manufacturers, or do they use OS based or Nova based engines and modify, then rebrand?

After a manual for an engine, and a detailed parts list, and part number for the conrod. Also just more details on who manufactures the engines (rather than who modify).
Will it use the OS conrod,?

Engine is Maxpower 21 GT RX (MF)(MJ).

Where can I find support, Parts lists and Manuals for these engines. Nothing useful coming up on my searches.

Any links appreciated.