From another post of mine:

The traditional Mopar Chassis book isn't a bad starting point to get in to some of the specifics of mopar suspension theory. It isn't the greatest, but it will cover a lot of info that guys on here speculate about.

The Oval Track Modifications book also has several chapters on suspension, shocks, tires, as well as aero, engines, and some neat historical reference tables, like specs on a 1.45 torsion bar and 250# rear springs. Like the Chassis book, the info is old, but it is a good reference point.

Another good book for a starting point, if you cna find it, is Mike Martin's Mopar Suspension book. This is an old SA Designs title that also has a lot of good baseline info and provides a good intro to dynamic calulations. Like the two above, it is somewhat dated and many of the manufacturers listed in it no longer exist. If you can score one at a swap meet for a few bucks, they are defintly worth it. Forget finding one on Amazon. Last time I saw them on there, they were listing for $100.

Digging deeper into dynamics, I've found a number of titles at Steve Smith Autosports publishing to be good. These books are heavily GM and oval track focused, but understanding the dynamics and tuning are the same even if the methods vary slightly between makes. Building the Pro Stock Late Model and Advanced Race Car Dynamics and its related work book are two good starting points. http://ssapubl.com

When you're ready to start getting deep in the meat of thing, the Carroll Smith "To Win" series will take you there. Design To Win, Engineer to Win, Tune to Win, Drive To Win, there is a whole series out there.

Dave Morgan's Doorslammers book has good info about dynamics, weigh transfer, and such. While it is drag race specific, it is still a good read to help understand how a similar set up can be slightly changed for varying applications.

Speedway Engineering site has some very good sway bar tables as well as a lot of cool parts. http://www.1speedway.com/

Speedway Motors
yes they are different than Speedway Engineering. Lots of low cost parts, some technical information, heavy oval track focus. http://www.speedwaymotors.com/

Afco Racing
Purveyors of high end shocks, springs and a number of other oval track parts. Catalog is full of good tech info as well as parts. Same stuff can be found on their website, but it is much easier to leaf through a book. http://www.afcoracing.com/

Grassroots Motorsports Magazine
The down and dirty side of SCCA and NASA racing is whats happening in here. They call it the hardcore sports car magazine, but its more than that. Web site has forums, classifieds, articles and vendors links. http://grassrootsmotorsports.com/