The 912 Registry (www.912registry.org) is a great source for information and cars for sale. Also check with the Porsche Club of America (www.pca.org). Your local Porsche mechanic would also be a good source for finding cars that have received the proper attention over the years.
Racing A 912Joe Vampola's red and white 1967 912 consistently out-duels the 911s and 356s at VARA vintage race events. He says the 912 enjoys a handling advantage over the shorter wheelbase 356, and its better-balanced rear weight bias lets him go flat out through sweepers where a 911 driver must tread carefully. He prefers a 912, because it is easy to drive at speed and great fun to throttle steer through the turns.
Vampola owns European Motorsports in Vista, Calif. (760/599-9307), a Porsche repair shop that specializes in setting cars up for all levels of racing. He advises that before investing in a high-strung 160-bhp, 7800-rpm redline 912 motor like his, the budding 912 racer should concentrate on dialing in the car's suspension and paring down its weight. A good street/track setup has 21mm torsion bars up front and 27mm bars in the rear (Joe's car uses 30mm). A heavy front anti-roll bar is also essential, at least 22mm thick (Joe goes with 25mm). No rear bar is needed, nor is a limited slip differential. Getting the car as low as possible is also key, which is why he prefers 14-in. wheels on his racer with 205/60 Hoosier race tires. The stock (non-vented) brakes work fine.