Does China GT follow SRO GT4 BoP or have their own BoP? The GT4 cars are "somewhat" different. Ie, the M4 has a true rear C/O. 718 Cayman CS have a Flat 6, whereas the roadgoing isn't even clear what Flat6 it's going to get. I like GT Racing, but it's not as rigidly homologated anymore. They control costs with pre-season testing (group of pro drivers test ALL cars) then apply BoP, then they keep adjusting BoP each weekend across all models regardless of how well the team is doing.
My guess is they have a minimum ride height to keep it "road relevant" and ensure floor aerodynamics do not have as much of an affect. I've noticed no complex rear diffusers or none at all on most GT4 cars.
I'm also considering a VBOX. I hate using phones/touchscreens esp with gloves. Syncing and the inability to multi-task on the those "dumb" devices is also inconvenient.
This also makes me somewhat question 1Ms/135 PPKv2 owners
removing the aux radiator and it being pretty well accepted to replace with 2 large oil coolers. I get it, keep oil low and water/coolant has an easier time. That's thermodynamics. However, I can't help to think reducing coolant cooling capacity vs increasing increasing oil cooling capacity has to have some trade-offs.
I'm in the same boat as
@berns , TQ 512 limit ruins my track days. Sometimes I barely get a clean lap in on a 30C day.
Edit: Anyway, I'm going to proceed with 2x 25 row setrabs with -10AN line and custom ducts.
Evo1 stepped intercooler and OEM main central radiator. Partially flushing coolant (it's probably 7 years old now) and concentrating more water, about 70/30. Rinse & repeat data, see how I go. Seems to work for ~6hr endurance cars here but once again their rules keep power low.