My friend just started a wiki for cars, to help share information easier. Everyone is welcome to contribute, and even make pages about their builds if they'd like. We already got nice things such as a whole database of wheel weights to help chose rims. And we're almost done adding all the vehicle boltpattern sizes. There's plenty of things to come like lots of technical info on suspension design and engine oil, etc.
Check it out and let me know what you think. If you would like to request any articles to be put on there that is fine too. Just edit the "articles to add" list linked from the front page. Check it out and let us know what you think. Give us some suggestions and feedback.
www.mechdb.com