I just had a wet track day, this was my second wet track day and this time I had some unusual handling going on, happened a bit last time but much more this time.

My setup is standard rims and suspension with whiteline bars back and rear with standard height also running 40% worn Advan Neovo's

I tried running the rear tyres at 28psi and front 30 psi cold. Hot they went up to 30psi rear and 32 psi front so I thought this would be ok in the wet.

I've also got maximum camber on the front, that is the bottom of the wheels stick out.

So I kept losing the rear end around sweepers. It felt funny when it let go, almost like slow motion as the rear started to come around, I caught it and flicked some counter lock on and kicked it back. The front seemed to be solid as but this rear sliding out at speed was a real worry.

So what about the ACD isnt that suppose to control all this? I was on tarmac then went on gravel setting in the next session but it didnt seem to make much difference.

Just for fun I pushed it past the point on one corner at the end of the last session and did a 360 spin, it seems that when it goes past a certain point it aint coming back and limited lock means you can't pull it around.

I don't really want to change the wheels and lower it etc, I like the stock look and feel

Anyone able to give me advice or is this all normal handling? .

 

What are the toe settings particularly at the back? Whiteline makes several rear sway bar sizes so what size and what setting on the bar? Never run the Neova's in the wet so not sure about how they handle in the wet....some of the summer performance tires don't do a good job in the wet so that may be part of it.

You have a non US IX so that should have SAYC. Assuming this is OEM spec that's the one that is more supposed to help in these situations than ACD but in either case neither can completely save you.

 

Most likely trail braking or getting on the "full" power too early. In the wet you need the rear sway on full soft usually to help with that too.

 

Down fall of having multi-link in the rear and McPherson in the front with high spring rates?

On dry, you have optimized camber for neutral balance. Drop grip to 0.8G and now you no longer have enough body roll to put the rear deeper into the camber curve. Now you have a ton of front camber and much less in the rear.

Reduce front camber or increase rear camber in the wet?

 

....

 

those tires are dedicated rain tires? if not that was your biggest mistake. if they were, then try to control the slide dont lift, rule number 1. its fun. )