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Just thought i would grumble though this question on my mind. I love the idea of hicas, but only when it works.

My hicas light comes on after traveling a long distance 150km, i don't know why(don't really care because i only do that once in a blue moon). BUT

When i sway the car (left right etc) the whole rear end seams to go limp like the bushes have droped out. If i straighten out for a bit, it corrects itself.

So my questions for those of you who got though the boring part.

#1 Firstly is limp end normal hicas traveling highway speeds or is it a sympton of the light. (havn't tested it before the light comes on). I ask this because i want to get it on the track.

#2 When working is hicas suitable for circut (speeds able highway etc).

As i said before i love the idea of hicas but maybe it's only ment for -100 speeds. Scares the shit out of me, especially when it sways at high speed while and the arse of the car is crabbing behind me then i hit the breaks because i think the wheels have fallen off and crabbing is accentuated so i feel like my arse is traveling faster than my front lol lol

PS not as bad as it sounds but when the car is pushed into swaying seams to be a computer error where it counteracts drivers steering with hicas.

:D

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Do you mean when ur going ~100km/h and sway left to right or right to left 'quickly' the ass feels like its all loose?

I had this problem in my old 33 and bout 3 days later the dif blew...

Was fine after i got a new diff

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#1 Firstly is limp end normal hicas traveling highway speeds or is it a sympton of the light. (havn't tested it before the light comes on). I ask this because i want to get it on the track.

#2 When working is hicas suitable for circut (speeds able highway etc).

1. Hicas can act unpredictably even when everything is working fine! so if you have a light coming on, then one of the sensors or something isn't working (or low powersteering fluid), which could make things worse

2. Never

Buy a lock bar if you intend to take your car on the track.

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Usually sway both ways a few times then the hicas kicks in and my arse goes limp. Have a feeling that i'm just going to have to rip it out, should save a few kg's, also don't have to fix that light. Anybody know a good DIY forum to start getting it out, also good lock bars????

thanks for your help guys. :)

Do you mean when ur going ~100km/h and sway left to right or right to left 'quickly' the ass feels like its all loose?

I had this problem in my old 33 and bout 3 days later the dif blew...

Was fine after i got a new diff

Edited by Savman
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HICAS on the track is shit, it makes the back of the car wave round braking from high speed amoungst other things.

bah - I can't say I've had that problem on my R32 GTR brking from about 220-230kph in the kink on Conrod with the semi slicks, or from about 210kph for the Karousell at Lakeside on Federal road tyres... there is a bit of trail-braking there if you provoke it, but that is a useful thing...

but if I was having problems with the HICAS system, I wouldn't bother trying to fix it. Just get the lock bar and remove the HICAS if its causing problems.

Edited by hrd-hr30
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