just curious?

[Shibby034]

why remove hicas??

[bignate]

its problematic, and gives the car an abnormal feel under cornering. Also removes a bunch of weight. You will be faster without it.

[Shibby034]

so that would be the reason why it feels kind of heavy through corners?
and also my steering wheel cocks to the right a bit when i am going into a corner with a fair bit of speed is that also a result of hicas?

[Skym]

Steering wheel feels heavy when turning around corners due to HICAS ECU is in Limp mode. There's a problem with HICAS ECU or sensors. HICAS light can mean fluid level is low in powersteering resouvoir in enginebay.

HICAS is there to counter the understeer (more rear wheel grip) that the stock suspension setup produces. High tech solution to a simple to fix problem. Can get around the understeer problem by increasing rear swaybar size after removing HICAS.

HICAS problems I've experienced -

Alot of play in HICAS rack arm on rack side (passenger side).
HICAS solenoid hoses leak in engine bay.
HICAS ECU can fail due to water entering breathing holes / have bad solders on circuit board (heavy steering).

Other problems -

Steering wheel sensor behind steering wheel can fail or cause problems with incorrect boss kit for aftermarket steering wheel

HICAS makes the rear step out (oversteer / more front wheel grip) at mid to high speeds on a racetrack. Without HICAS + adjusting for understeer, the rear doesn't step out as easily and can enter, exit corners quicker. I find without HICAS + adjusting for understeer, can turn tighter into corners without the rear stepping out. Gets around corners much quicker than with HICAS, where you have to slow down to make sure rear of car doesn't step out.

It's way safer to remove HICAS, as it's caused a few accidents with Skylines on motorways, etc, where it has unexpectedly moved when driving in a straight line. Or sometimes the play in rear HICAS rack can cause excessive bodyroll, tyre wear, etc (alignment settings for toe are out).

[love_boost]

i kinda removed mine unwillingly, but friends that did the hicas delete the car feels way better.

HICAS seems kinda unpredictable exspecially if you like going sideways, sometimes it works and sometimes it dosent.

[Shibby034]

well thats some exactly what i was trying to find out..thanks
and thats another thing i noticed is that it cuts in and out, so sometimes it works and sometimes it doesnt. so is that just a bad connection somewhere or are is it just that temermental?

[love_boost]

no, i think it works at a certian RPM vs wheelspeed vs steering position.

[Skym]

In catalogue, HICAS is supposed to work at mid to high speeds around corners and when changing lanes on motorway. I've felt it move at 40km/h-50km/h around a sweeping corner.

Another thing I noticed is the rear of car is more stable without HICAS on motorway, etc. Also rear grip levels increased.

[Shibby034]

ya it sounds like i would be alot better off without it, i also noticed that it moves around corners

[duck604]

hicas

Steering wheel feels heavy when turning around corners due to HICAS ECU is in Limp mode. There's a problem with HICAS ECU or sensors. HICAS light can mean fluid level is low in powersteering resouvoir in enginebay.

HICAS is there to counter the understeer (more rear wheel grip) that the stock suspension setup produces. High tech solution to a simple to fix problem. Can get around the understeer problem by increasing rear swaybar size after removing HICAS.

HICAS problems I've experienced -

Alot of play in HICAS rack arm on rack side (passenger side).
HICAS solenoid hoses leak in engine bay.
HICAS ECU can fail due to water entering breathing holes / have bad solders on circuit board (heavy steering).

Other problems -

Steering wheel sensor behind steering wheel can fail or cause problems with incorrect boss kit for aftermarket steering wheel

HICAS makes the rear step out (oversteer / more front wheel grip) at mid to high speeds on a racetrack. Without HICAS + adjusting for understeer, the rear doesn't step out as easily and can enter, exit corners quicker. I find without HICAS + adjusting for understeer, can turn tighter into corners without the rear stepping out. Gets around corners much quicker than with HICAS, where you have to slow down to make sure rear of car doesn't step out.

It's way safer to remove HICAS, as it's caused a few accidents with Skylines on motorways, etc, where it has unexpectedly moved when driving in a straight line. Or sometimes the play in rear HICAS rack can cause excessive bodyroll, tyre wear, etc (alignment settings for toe are out).

totally agree