Go to
http://www.cessnasupport.com for a trial download on all the different models. I think it lasts 15 days.Looks like you have to be able to log in to get that info now. If you use ARINC for flight planning they also have alternate departure routes for airports that have SIDs that require a high climb gradient. I know we can get out of KEGE several thousand pounds heavier using CPCalc and the ARINC alternate departure route. (only to be used in event of engine failure)
Dave