Driven primarily by tightening US emission standards, Porsche first used Bosch mechanical fuel injection to replace carburetors on the 1969 911 E and S.  From the early 1970's through the early 1990's, Bosch K Jetronic, or continuous injection system (CIS), was used on the 911 (1973 - 1983), 911 Turbo (1976 - 1992), 924 (1976 - 1982), 924 Turbo (1981 - 1982), and 928 (1978 - 1979).  Let's see what makes CIS tick.

For CVR driver's education, rollbars are required in cabiolets and Boxsters, and roll cages are required in all open cars and targa's/914's without roofs. Aside from a custom designed/welded rollbar or rollcage solution, there are several sources for rollbars which fit all of our Porsche models.

When it comes to brake bleeding, there are 4 ways to bleed your brakes. 

We'd like to look at general improvements you can make which will enhance your safety during drivers education events. Each month or so, we'll cover upgrades in the areas of brakes, suspension and tires, the interior, and the exterior. At some point,  discussion of safety upgrades bleeds over into a  performance upgrade discussion. Our goal is to stay on the safety side of that line.

When you first start drivers education, your stock brake pads are OK, however, you'll find shortly that combined street and drivers ed events leads to a significantly shortened pad life.

In previous Cross Thread articles, we've talked about brakes and upgrades you can make to enhance your braking capabilities at the track. These involve basics such as fresh, high temperature brake fluid and recently bled brakes, removing the front backing plates, piping air into the brake rotor, recent rubber or stainless mesh-covered brake hoses, and the choice of brake pads.  In this two part article, we'll cover why you might want to upgrade your brakes and discuss what's involved.