Quick AYC question

[Subaru ETA]

has anyone noticed that when there car is quite heavily loaded the ayc seems alot more sensitive?

coming back from the batch yeaterday with 4 people plus a boot full of stuff the ayc seemed to be flicking one bar quite abit. for example, going around a corner with 2 bars, straighten up and about 4 sec later 1 bar would come on.

dropped everyone off and with 2 of us in it it was fine

tyre pressures are all good, i put 35 psi in the rear to compensate the extra load i was carrying.

tyre pressures are all good, i put 35 psi in the rear to compensate for the load.

[d i c k i e s]

didnt really notice on my trip full of bags, bike etc up north and back. seemed alright, only see a bar light up when im throwing the car into the corner. but thats hardly every when the load is full.

[Ryan]

Hmm, I suspect that the greater the load, the greater the tendency the car has of yawing due to the added momentum. I don't know about in a straight line though, that seems odd.

[bradc]

I've found that when the car is loaded it tends to oversteer more, typically because the more load you put in, the more weight will be at the back.

[Subaru ETA]

yeah but due to my current demeerit point situaltion i wasnt pushiing it all that hard.

i remember i couple of weeks ago when i was parking at work where the driveway is on a slope it did the same thing at like 3km/h. i checked the tyre pressures then and it was all ok.

when im back at work on monday ill check there is no crap on the wheel speed sensors or anything

[miller]

The car does seem to handle a LOT different with loads in it. Feels so weird when you first set off. Never really noticed the AYC lighting up in straight line though.


Mike

[bradc]

I get the ayc lights coming up regularly at low speed in car parks and on funny angles and stuff. I think it is because the rear wheels barely touch the ground on some angles and the ayc kicks in because it doesn't understand what is going on.

[Subaru ETA]

yeah i was thinking about it being because its lowered and changing the geometry might cause this at low speed.

when its wet i can get it to light up 2 lights when nailing it it in a straight line :D

[HowieP]

My understanding of AYC bears out your findings as with more weight towards the back the front will lighten (as a proportion of the total). This causes a greater tendency to understeer so the AYC steps in and torques-up the outside rear wheel to counteract it.

I always have a laugh when people talk about how to quell understeer in their 4wd cars by lifting off, "I put my foot down" I tell them...

Howard