Recently I was at Texas Motor Speedway participating in a D.E.. At 125mph I experienced a brief (less than 1 sec) loss of power. I wasn't sure what to make of it so I kept going. Then I noticed I was down to 3 bars on my fuel gauge. I didn't think that was the cause: as I came around the front stretch of the oval with my foot to the floor it happened again and then my low fuel light popped on so I finished the run a little early. Assuming the cause to be low on gas.The next day the same thing happened with 4 bars showing. I went and added more gas to 3/4 full and it ran fine . Has anyone else had this happen? I am guessing at hi speed and alot g's on a big oval this is a logical explanation. Gerry

 

That seems like a likely explanation.

 

I'm a computer engineer not an auto mechanic, but when fuel is low in a car it usually loses power.

the gas guage can be deceptive at the track. Anywhere between 0-4 bars really means 0 in my experience and time to pull off and refuel.

 

Many folks have noted fuel-related power loss in specific turns. I've had it a few times, myself. The cure can be anything from driving smoother (less sloshing of the fuel) to adding significantly more fuel. Autocrossing may be "easier" in this regard since you're typically not in long turns while on a track you get settled into the groove.

I think most folks run full tanks at tracks so they simply don't run out of gas during the day. You might want to do that unless you're hell-bent for lowest times...

 

Depends on the track, but any track with a long left hand turn will cause fuel starvation in an S2K. Turn 2 at Laguna Seca is a good example. If I have anything less than half a tank i'll get fuel starvation by the exit of the turn.

 

could your motor blow if your going all-out through a turn at high revs and the car doesnt receive fuel?

 

Losing fuel won't blow the engine. Running it lean due to lack of fuel for an extended period of time (more than one corner *could* cause problems but you'd have to be lean all the way around the track for multiple laps.