I tried countless different setups with my F1 GT for R800 by adjusting ARBs, ride height, stiffness and so on but it always lifts up the inner front wheel while under steering and acceleration. None of my other R800 Elite Homologation cars does that while they are at a comparable weight and weight distribution.
I have managed to sort this “lifting up” out of all my SUVs but with the F1 GT I just don’t understand what’s the problem. Has anyone a solution? It’s extremely apparent on the Nordschleife on which I test most of my higher class cars.
Can you post your build and current tune? Then for sure you can get some help.
868kg, 42% front
Tire Presse: 2.1
Camber: - 2.5 - 1.6
Toe: 0.0° - 0.1°
Caster: 6.0°
ARBs: 26.74 19.39
Springs: 76.9kg 96.6kg
Ride height: 8.5cm 4.4cm
Dampers: 6.1 8.4
4.1 5.6 bump
Downforce: 70kg 128kg
Brakes: 50% 150% braking force
Diff: stock
First digit is always front.
Three things I’m noticing from your settings:
You run very stiff ARBs, could be a reason for lifting front wheels. I would suggest cut them half at least or even more. Also try reversing the ratio, i.e. make the front ARB softer than the rear.
Also you could try raising rise height to around 8.9:/4.8, helps stabilizing the car.
Third one is your front rebound seems too low, Try raising it too in conjunction with lowering ARBs. Should help stabilizing the car during cornering and when accelerating out of corners
I think this car is glitched. Just did some laps with it on catalunya full and seems when exiting a corner and on the power the whole front tries to lift off the ground making the front end bounce and lose traction.
I’ve found no amount of tuning solves this, might be worth posting in the tech support section of the forum.
Seems glitched. I tried minimum caster, no front bar, dramatically stiffer rear springs, max rake to front, max rake to rear… even the less extreme tricks I use to get the Porsches under control don’t seem to do anything.
Thanks for the tips here and per private mail but unfortunately all your suggestions didn’t help to solve it. I could minimize the problem though. So thanks for that. 
try max rear ride height and max rear spring stiffness and oppsite for front.
I did notice that the springs and really really (too) soft and the ride right is really really (too) low.
So his is the first place I came for advice on this same topic and had done a lil tuning of my own. Here’s what I found…(bare with me as I use imperial units)
Tires: 16.0/28.0 PSI
Camber: -1.8,-1.8
Toe: 0.0,-0.1
Caster: 6.5
ARB: 40.0,34.0
Springs: 250.1/500.0 LB/IN
Ride ht: 3.2/2.4 IN
Rebound: 3.2,6.0
Bump: 2.0,4.8
Aero: 155,225 LBS
Brakes: 49%,77%
Diff: 60%,5%
I was trying it on Monza Full Alt on the first corner. I hope this helps and let me know if you find anything better!
I finally was able to grab the car myself and gave it short spin on Yas North and had no such issues.
Tune is shared if anyone wants to try it out.
I suspect the issue is stemming from the ride height. My tune uses 3.5/1.8.
Tires: any
Camber: -1.5,-1.0
Toe: 0.0,-0.1
Caster: 5.0
ARB: 12.2,8.0
Springs: .122.2/186.3 mm
Ride ht: 8.6/6.2cm
Rebound: 11.9,8.1
Bump: 6.0,5.9
Aero: 46,75 kgs
Brakes: any
Diff: 70%,53%
Some of the newer Porsches do it as well if pushed hard enough exiting corners.
I noticed something a couple of days ago… mine stopped lifting the front wheels when I reduced the horsepower to make it division legal. In telemetry it looks like it still comes up, but there’s no loss of steering.