I only have 2000 miles on my car, so I don't have much experience with how the car handles. I have noticed that when I push the car hard through a corner I find the car first understeers and then abruptly transitions to oversteer. After looking at the suspension I imagine this is because of the progressive nature rear springs and the abrupt transition is cause by transition between the soft and hard parts of the springs. What you do you think? Does this seem like a reasonable analysis and would a swap to linear springs change this behaviour?

 

Assuming the car is stock, it could be you. Entry push with snap oversteer is frequently too much entry speed->results in overloaded front tires ->driver increases steering input as car starts to slow slightly-> front wheels grab and now there is oversteer.

Can also happen if you go to power too hard then lift when it starts to push.

Might not be your problem but seen it enough it is one of my first thoughts when I hear it.

 

It is a good analysis, however, not accurate for my driving style. First off I do all my braking before intial turn in and the transition from understeer to oversteer occurs happens well after the apex. I am all ready transitioning back into the throttle and the weight is shifting from the front to the rear wheels. It definetely isn't TTO (trailing throttle oversteer).

 

The SAYC is a little abnormal in operation and you have to hold the throttle. When I first got the car, if you lift off even a little when the yaw control is doing it's thing, it'll snap oversteer more like a RWD car than any other AWD car I've driven. Spooky.

 

Edit: Replied before I saw your reply as I hadn't refreshed the webpage. Sorry!

 

Are you stock? Does the push start as soon as you go to throttle?

 

Yes the car is 100% stock and yes the push does start as soon as I go to neutral throttle or and positive throttle. The car turns in amazingly, just doesn't seem to have any mid corner grip and then has snap oversteer on exit. I just figured I was driving the car wrong or the stock suspension has some weird characteristics. This is the first car I have ever had with progressive springs in it.

 

Snap oversteer only happens when you lift. Don't lift. In fact, once you have the nose in, get back on the gas harder than in any car you've ever driven before. My guess is that you aren't (yet) trusting how incredible the drivetrain in this car is.

I had many years of experience driving Ferguson AWDs (2G DSMs) and it still took a long time to get used to the Evo because it can do things that I was convinced are physically impossible.