Lycoming Nomenclature

Does anyone know where I can go to find out what all the prefixes and suffixes in the Lycoming engine identifiers mean? I think I've figured out T means turbo, and I must be injected, right?

Serious newbie here.

Thanks,

Carey Bowman
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http://www.lycoming.textron.com/main.jsp?bodyPage=/productSales/engineSpecifications/index.html
On the bottom of the first page.
Good Luck,
Mahlon
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Thank you!

I must have spent two hours snooping around the Lycoming website and never found that thing. It's highly appreciated.

Regards,
Carey Bowman