In one continuous session I drove as hard as I possibly could for one hour twenty minutes on track and used nearly half a gauge of 98 ron fuel. So say about 20- 23 litres. That lines up fairly closely with other track days too. Track is open for 4 hours. We spend a fair bit of that talking BS. and having cuppas etc. and I generally burn nearly a full gauge. Say about 45- 48 litres.
Gen3. 3sgte. 540 Injectors. Stock ECU. Track ready the car weighs 1150 kg.
Air/fuel at cruise reads 14.3 Wide open throttle down the straight in 4th it shows around the 10.2 - 10.8 area.
I've had a couple of blokes wanting to lean it out but I won't let em near it.
Highway cruising at the speed limit it will do about 580 kms for 52 litres so it ain't too rich in closed loop operation.
Your much more powerful engine is bound to need at least half as much again as mine. Maybe allow 40 - 45 litres per hour.