Join Date: Feb 2001
Location: Ft. Walton Beach, FL
An overfill is not a bad idea. In fact I overfilled my car by a quart on my last track outing. I hit 1.2 G's at peak and oil pressure was steady the whole time. It is not a guarantee that you won't experience a pressure drop especially as you start seeing higher lateral loads, but it is a sound preventative measure.
For some other cars, the owners manual specifically will recommend an overfill as well if the owner plans on tracking their car.
2012 Race Red GT
1998 Black GT (Open Track car) - TF 44cc Heads/Aviator SB, HP cams, BBK shorties, Delta Force tuning, MM Panhard LCA FCA Full subs CC plates coilovers, Koni Yellows, drop spindles, Brembo/Cobra brakes, 3.73 gears, truetrac diff
Track Videos - http://www.youtube.com/cxavier68