Great test and super data Bowtie! 👍1.09 Physics/Camber Test
Using the tune posted above, I decided to test camber after 1.09 update. I ran 5 laps at Silverstone GP first to get familiar with the car and then to Silverstone International for the test. Tune was build originally months ago and not the same since the update although I have not driven in a month atleast.
Original tune as posted above - 5 laps - 1:06.439
Original tune with suspension only defaulted - 5 laps - 1:06.747 (did run a red lap at 1:06.436)
Toe changed to 0.00 / 0.04 - 5 laps - 1:06.238 (still default suspension camber 0.5 / 1.5)
Camber 0.0 / 0.0 - 5 laps - 1:06.331 - noticed slow corner exit looser, understeer since default change
Camber 0.0 / 0.5 - 5 laps - 1:06.710 - not sure what happened, driver error?
Camber 0.5 / 0.5 - 5 laps - 1:06.305 - understeer and slow exit improved
Camber 0.5 / 1.0 - 5 laps - 1:06.254 - slow exit even better
Camber 1.0 / 0.5 - 5 laps - 1.06.259 - Felt even better
Camber 1.0 / 1.0 - 3 laps - 1:06.011 - slight oversteer on slow corner exit returned?
Back to original tune........red lapped 2 more, got distracted
Camber 0.5 / 1.5 - 5 laps - 1:06.083 (Push on high speed turns, needs front toe!)
Camber 0.5 / 1.0 - 5 laps - 1:05.846 (closer to previous average and feel pre 1.09)
Camber 1.0 / 0.5 - 5 laps - 1:05.764 (Best feel, most consistent all around through the test)
Camber 1.0 / 1.0 - 5 laps - 1:06.128 (understeer mid-corner, loose off. DID NOT like the feel of these
Camber 1.5 / 1.0 - 5 laps - 1:05.822 (Better turn in- had to change braking points. Better mid cornersettings. Had to really work to keep up with ghost from 1.0 / 0.5)
Camber 1.0 / 1.5 - 5 laps - 1:05.890 (most laps were 1:06.400 or worse, rear had more grip but addedspeed allowed a little high speed exit looseness.
Camber 2.0 / 1.5 - 5 laps - 1:06.131 (Seems to have gone too far with front camber, rear good grip.more understeer(?). Again, hard to keep up with ghost)
Camber 0.0 / 0.0 - 7 laps - 1:05.710 (decided to finish where I started. Fastest lap time. Faster thanTOO tight in mid-high speed corners. Brakes much worse, earlier reguired.
What I have noticed so far: brakes decline with front camberghost for first half of the lap, then behind consistently. Better final section made it faster. Was set on lap 6, lap 7 was 1:06.690 caused by rear loose on exit.)
front camber helps grip mid-high speed corners but slower in slow corners
Rear camber helps exit on slow corners, might aide in mid-high speed corners.
Obviously, 0.60 rear toe helps stability and corner exit but hurts rotation overall.
Rear toe at 0.04 helps rotation but needs help to control slow corner exit.
The car feels better and more consistent with front camber higher than rear.
Ride Height - 110 / 110
Springs - 7.12 / 7.98
Comp - 3 / 3
Ext - 3 / 3
ARB - 3 / 3
Camber - 0.5 / 1.5
Toe - 0.00 / 0.60
Does camber make you faster, that is the question? The answer is NO and Yes. By itself no, however you can feel gains with it as well as loses. Mid-corner grip goes up with front camber, exit grip with rear. Braking suffers if you go too high with the front. Lap times are not the best way to judge, feel is. This test allowed me to feel each change and I had to adjust to each. The tune did not like the rear higher than the front or equal to it. It always felt better with the front higher than the rear. I suspect this would be the opposite with a MR car. I also suspect (and will have to test) that harder tires, i.e.; comfort soft/sport hard would like less camber and softer tires, RH-RS would like more. Braking becomes a big issue and with tires having less grip to begin with, you would really need to brake earlier and lap times would suffer. Tires with more grip would handle more before noticing(just a theory right now).Conclusion
The use of camber as an aide for certain handling issues will make a tune faster in parts of the track and slower in others. A 0.0 camber tune may still be faster for a given lap!!! but over a span of laps, I believe the consistency with would win out. Camber can definitely now be used to improve a tune whereas in 1.08, it would hinder.
For me, somewhere around 1.0/0.5 is the sweet spot and I would build from there with this car. Building a tune from scratch and using camber would be more beneficial than just adding camber. This car was tuned for 0.0/0.0, with camber it may need a few tweaks to make the car better. I would suggest trying this tune at 0.0 and than with 1.0/0.5 for yourself and see if you feel the difference. As for me, I will be using camber going forward until I hear results from @Motor City Hami with his testing. Better more clear tester than myself, very thorough as we all know and trust.
I've not had a lot of time to test properly due to other commitments, but what I have done so far pretty much goes along with your findings. I run more MR cars and you're right on the money, just about every one I've tried is better with higher rear camber.