Jump to content
SAU Community

Help needed

Mr.R33

By Mr.R33,
in Queensland

 Share

Recommended Posts

Mr.R33 Enthusiast

Mr.R33

Posted
Posted

This is going to sound like a really strange question.... but

I have just recently had new tyres fitted to the back of my R33 gtst ( 265x35x18)

and for some reason the steering is now reacting really badly. I was maybe even thinking that when the tyre place changed the tyres they might have jacked it up using the HICAS steering rack instead of the Diff.

So what I need to know is with the HICAS can you actually see it moving when you turn the wheels when stationary or very slow? ( like I know you can on Hondas with 4 wheels steer)

or does it move so slightly that you can't see it?

I can't see mine moving so if they are meant to then I have found my problem.

If someone could help me by looking at their line I would really appreciate it.

Thanks

Link to comment
https://www.sau.com.au/forums/topic/58808-help-needed/
Share on other sites
Mr.R33 Enthusiast

Mr.R33

Posted
  • Author
Posted
And...  FYI...  He, is a she...  :P

Who is a She?

Any way Thanks for the help fellas,

So Hicas is set up for high speed cornering?

I thought it was like the Honda 4 wheel steering and was set up to only work for low speed cornering, moving only a couple of degrees?

Does anyone know how to run a diagnostics on the Hicas, cause I have no way of knowing if anything is damaged.

I took the car back yesterday and they put the car on the hoist, you could quite clearly see where the jack had hit the hicas module.

they said it was only a minor mark and they reduced the tyre pressures down to 30 psi to solve the problem ( my opinion that only masked it)

Not sure what I do from here now..... Guess I take it back down to Gavin at Autotech and see if he can find anything wrong!

Thank again for the help

Link to comment
https://www.sau.com.au/forums/topic/58808-help-needed/#findComment-1126451
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Duncan
      R32 Gtst - Track Car

      By Duncan · Posted

      Hope you aren't too sore after that one, might take a day or 2 to notice yet and I guess it is a loooooong drive home. On the bright side, tube frame front end is a thing at superlap, right?
    • Dose Pipe Sutututu
      R32 Gtst - Track Car

      By Dose Pipe Sutututu · Posted

      https://www.facebook.com/share/p/18rmVb1SKB/ 
    • GTSBoy
      Leak from Tokico BM50 Brake Master Cylinder

      By GTSBoy · Posted

      The chart of front pressure to rear pressure (with one being on the x axis and the other being on the y axis) is not a straight line on a typical proportioning valve. At lower pressures there is a straight line with one slope, and at higher pressures that changes to a lower slope. That creates a bend in the line at that pressure, called the knee point. If you do not change the proportionng as the pressure gets higher, you will suffer excessive pressure (at one end of the car or the other, depending on which way you look at the proportioning action) and then get lockups at that end. The HFM BM57, from my memory of previous discussions, is based on the BM57 from a different car (to a Skyline), with a different requirement for the location of the knee point and the distribution of pressure front to rear, and so is not a good choice for an upgrade on a Skyline. Here's a couple of links to some old posts, one from here, one from elsewhere. A lot of it pertains to adjustable prop valves, but the idea is the same. There are plenty of discussions on here about this issue from al the many years of people wanting a cheap/accessible option. https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/ https://grassrootsmotorsports.com/forum/grm/learn-me-brake-proportioning-valves/236880/page1/  
    • No Crust Racing
      R32 Gtst - Track Car

      By No Crust Racing · Posted

      Yeah dunno why johhny posted that here with no context, just post on FB/insta bro where he put it up?  Laine had an off at T4 during Thurs prac, he's ok, car is less than perfect, they are done for the weekend, he can fill in the rest. Bando also binned it like 100m up the road.   
    • MBS206
      R32 Gtst - Track Car

      By MBS206 · Posted

      I feel there must have been a FB/insta post and the weekend did not start well at all I hope everyone is all okay
×
×
  • Create New...