Standard setup tyre pressures are too high for the new tyres, setting them down will improve car handling sensibly.
Speaking of tyre pressures, they seem to be pretty low for bias ply tyres. Are you sure the values are in the right ballpark?
I get a gMotor 2 error when trying to load this vehicle. That is, I select the vehicle and then hit "Race" and the loading starts, then stops and then the error: "Error getting stats for texture WAVEMASK_FK.DDS Error loading texture WAVEMASK_FX for material ALPHA_OVERLAY" This is for v.24, Build 1008, Windows 10 Any ideas? I downloaded twice to check that.
The 917K used 21 psi (cold) front and 23 psi (cold) rear at Spa in 71 and 22 psi (cold) front and 26 psi (cold) rear at Le Mans in 71.
A little status update. This week I had no time to keep working on physics, but I received interesting pictures from yoss. Rear rim Front rim General view
Check this http://www.stanceworks.com/2015/06/aesthetics-the-porsche-917k-004017-a-featherweight-beauty/ I think its worth it.
Lovely pics, the gearnob is from balsa wood to keep weight down as possible (though McQueen's at Le Mans film wasnt like that, was thin and long-sounds horny I know ).