For directions, it's pretty easy.
From Kingston, you head east on the 401. You take the 16 (north) which then convert to the 416. This will bring you into Ottawa. Once in Ottawa, you take the 17 west (or it might say the 417). About 5 miles from the intersection 416/17, you'll get off at March road (second intersection in Kanata). On this exit, turn rigth and continue driving on March road for about 5-6 minutes. You'll pass a Canadian Tire store and a Tim Horton's coffee shop (both are on the right) and about 2 blocks further you'll see the Alcatel Building (brown and black) (right side) and you'll turn right at this light and right again to head into the 2nd parking entrance.
If you plan to race, you must be there between 8:30 - 9am since they'll to inspect your car (for mods and safety) and classing.
The trip from Kingston will take about 2 hours. I might suggest you to come back to Ottawa with our group and find a nearby campground near Kanata (or Carleton Place).
Any questions, email me at firstname.lastname@example.org and we'll see you there in Kingston September 9th...