You gotta use the down force characteristic of the car combined with smooth braking and decisive turning of the wheel. Keep your speed up in the corners. The fast you can be in the corner with a open wheeled car the more grip you can create with the down force. DO NOT max out your down force trying to accomplish this. You can brake earlier to allow the car to slow down smoothly and elegantly. On this car you should use left foot braking. You can even get the engine torqued up before you smoothly release the brake so the transition from brake to throttle is seamless. The Driving Force GT is an excellent wheel. The wheel does not make the driver better. It can make the task a little easier though. Make sure you are using manual transmission. Shifting points are very important as they will effect the attitude of the car under braking. You don't want to shift to fast or to slow and you DO NOT EVER want to force the shifting or rather be in a hurry to get it downshifted to the proper gear. If you feel as though you are forcing the car to do anything (shifting, cornering, braking, accelerating, whatever) you should try another approach or ask for specific advice from a more experienced driver. 1:13s are obtainable by just about anyone willing to learn. My last PB is a 1:14:06 i think w/FBM on BL1. My FBM skills have improved since then and I am sure a bit more time would result in low 1:13s. This was the first track I attempted in the FBM, but it was straight from my transition from XRG to FBM. A different method was involved between tin tops and open wheelers for me.
Lastly.... And this depends on how you operate as a person...but for me, if I am talking on ventrillo or thinking about something else I tend to zone out and become faster. The heat of the moment tends to heighten my abilitys for a short amount of time if the heat of the moment didn't just put me back in the pits. The longer I stay on the track with out restarting the faster I become. I sorta zone out and just drive. Thinking of other things most the way. If I focus too hard I become frustrated and normally become slower then normal. This is my ADHD at work. My brain has a problem working faster then the rest of me allows. Not that I have super brain powers or anything like that. Most of the time this renders me more toward the useless side of things. But, if i have another outlet (talking, tapping my foot to a rhythm, any thing that some find distracting). A way to get it out. The outlet stimulates the over active part of my brain causing the part of my brain that is driving the car to work in a closer to normal level and allows me better impulse control as well. It is like a drain plug for the extra stuff built up in your head. The extra stuff that isn't supposed to be there. If you need another example compare it to the fuel mixture in a real car that is too rich. Diverting the fuel in another direction allows more powerful, more efficient engine performance. Many of my my PB's have been set in practice mode under tire testing or 20+ lap races. Part of this is due to how I zone out after many laps and I am very easy on the car by nature and a bit by habit as well. Some people may have the exact opposite problem though. You really have to figure out which type of person you are. Driving is mostly mental is the point of my ramblings here. The way a person operates should be applied to their driving practices.
Jay