This has happened a couple of times to me - there is a slightly graded ramp that I take home sometimes which I can take pretty fast if no cars are around me - If my gas is down to about less than 4-5 leds then when i gun it out of the apex as I start climbing uphill the car gets some fuel starvation. Now - the first time i didnt know what was going on so i turned the car off - and that was stupid. The next time I just came to a stop in neutral and waited a while for the car to get leveled - put it in gear and it was ok all the way to the gas station.
Due to this - after every track session I gas up to a full tank
TravisJB has def dealt w/ this issue - and i believe has a fix for it