Page 1 of 2 12 LastLast
Results 1 to 20 of 21

Thread: Roll centre correction

  1. #1
    Guest ps13ben's Avatar
    Join Date
    Dec 2017
    Location
    Kent
    Posts
    194
    Rides
    0

    Roll centre correction

    Im looking for a solution for roll centre correction on my PS but without going down the road of all of this super duper lock kit drift boi stuff, its for more of a track/ street sense now I have lowered it.
    is there anything out there to correct this,
    I know the US has a good few solutions but do we? all I have found is driftworks knuckle replacements which increase the camber by quite bit I'm told and my top mounts will only do so much.

  2. #2
    Guest
    Join Date
    Mar 2011
    Location
    Longfield, Kent
    Posts
    1,419
    Rides
    0
    Hatdrace roll centre correction ball joints and track rod ends

    Sent from my SM-G973F using Tapatalk

  3. #3
    Now with 400bhp....
    Join Date
    Aug 2007
    Location
    South west
    Posts
    36,381
    Rides
    1
    Do gktech not offer a solution? I’m running the hard race balljoints and trackrod ends on my s14 and they have helped.
    1998 Nissan 200sx s14a , 2000 std 5 speed with nismo supercoppermix clutch bn6 Sapphire Blue

  4. #4
    Guest ps13ben's Avatar
    Join Date
    Dec 2017
    Location
    Kent
    Posts
    194
    Rides
    0
    Just looking at the hard race ball joints which seem good but a geeky as it sounds, do you have any idea how much roll centre they correct?
    ill have a look at the GKtech kit now

  5. #5
    I <3 BBS LM Actual_Ben_Taylor's Avatar
    Join Date
    May 2001
    Location
    South East
    Posts
    23,662
    Rides
    0
    The balljoints do about 10mm

  6. #6
    Guest
    Join Date
    Aug 2013
    Location
    Oxfordshire
    Posts
    2,251
    Rides
    0
    I’ve got brand new hardrace rear ball joints, 180sx arms and new poly bushes if you wanted to refresh the rear in one go ��.

  7. #7
    Guest ps13ben's Avatar
    Join Date
    Dec 2017
    Location
    Kent
    Posts
    194
    Rides
    0
    I don't think 10mm will be enough of a correction, I take it the ball joint option wouldn't be able to correct huge amounts.
    maybe looking into the knuckle option would be what I need because you can correct unto 45mm roll centre with those. just don't like the large amounts of camber associated with them

    as for the rear though Adam ill have a measure this weekend and see if around 10mm will help me out, could you PM me a price pretty please

  8. #8
    Guest
    Join Date
    Aug 2013
    Location
    Oxfordshire
    Posts
    2,251
    Rides
    0
    Quote Originally Posted by ps13ben View Post
    I don't think 10mm will be enough of a correction, I take it the ball joint option wouldn't be able to correct huge amounts.
    maybe looking into the knuckle option would be what I need because you can correct unto 45mm roll centre with those. just don't like the large amounts of camber associated with them

    as for the rear though Adam ill have a measure this weekend and see if around 10mm will help me out, could you PM me a price pretty please
    When I bought mine I’m sure I read they corrected 20mm. I know the track rod ends do 20mm.

  9. #9
    Guest BLAKTOOTH's Avatar
    Join Date
    Jul 2007
    Location
    Benfleet, Essex
    Posts
    4,783
    Rides
    0
    Big fan of the Hardrace RC BJ’s. My car’s fairly low and used to bump steer all over the shop. It now doesn't. Massively overlooked yet essential upgrade imo.
    Last edited by BLAKTOOTH; 07-09-2019 at 15:32.

  10. #10
    Guest ps13ben's Avatar
    Join Date
    Dec 2017
    Location
    Kent
    Posts
    194
    Rides
    0
    Yeah I completely agree being an overlooked upgrade for sure,
    its not as stable as id hoped so just tracking down the issues to bring it back up to what it should be. bloody interesting to say the least

  11. #11
    Guest
    Join Date
    Jul 2011
    Location
    wirral
    Posts
    695
    Rides
    0
    Definitely recommend the forged anti Bumpsteer track rod ends and taller ball joints from hardrace. Also
    Got fully adjustable bushed arms back n front and comfy coilovers car feels great :-)

  12. #12
    Guest ps13ben's Avatar
    Join Date
    Dec 2017
    Location
    Kent
    Posts
    194
    Rides
    0
    Well in the end I went for a new set of front knuckles and rack offset bushes which correct not only bump steer but roll centre too and hardrace rear roll centre correction ball joints (thank you Adam).
    Out of all my years of lowering my cars for some reason I just haven't stopped and thought about how much it messes with the geometry of the car........ must be me getting older and wiser

  13. #13
    Member
    Join Date
    Sep 2005
    Location
    Northamptonshire
    Posts
    21,395
    Rides
    0
    Don’t Geomaster 3’s do all this without needing any special rods or joints?

  14. #14
    Guest BLAKTOOTH's Avatar
    Join Date
    Jul 2007
    Location
    Benfleet, Essex
    Posts
    4,783
    Rides
    0
    Quote Originally Posted by piman2k View Post
    Don’t Geomaster 3’s do all this without needing any special rods or joints?
    The ideal solution but monies.

  15. #15
    Member
    Join Date
    Sep 2005
    Location
    Northamptonshire
    Posts
    21,395
    Rides
    0
    True. They're not cheap, but they look to save so much work. I am going to give them a run on mine.

  16. #16
    Guest BLAKTOOTH's Avatar
    Join Date
    Jul 2007
    Location
    Benfleet, Essex
    Posts
    4,783
    Rides
    0
    Quote Originally Posted by piman2k View Post
    True. They're not cheap, but they look to save so much work. I am going to give them a run on mine.
    #moneybags
    #thoughtyour14wasntgoingtobeserious
    #nobodylikesashowoff

  17. #17
    Member
    Join Date
    Sep 2005
    Location
    Northamptonshire
    Posts
    21,395
    Rides
    0
    Behave. I won't be spending lots of money on it, but I always suffered tramlining and bumpsteer on the road in the White one.

  18. #18
    I <3 BBS LM Actual_Ben_Taylor's Avatar
    Join Date
    May 2001
    Location
    South East
    Posts
    23,662
    Rides
    0
    Ok, so what's the difference between the GK Tech grip knuckles and the Geomaster 3? Apart from £150

  19. #19
    Guest immy21's Avatar
    Join Date
    Mar 2009
    Location
    Edinburgh
    Posts
    7,176
    Rides
    0
    Quote Originally Posted by piman2k View Post
    Don’t Geomaster 3’s do all this without needing any special rods or joints?
    Just longer Tie rods or rod spacers.
    Your ABS sensor will be stuck in the old knuckle, so a pair of Pug ABS sensors too (cheap)

    Quote Originally Posted by Actual_Ben_Taylor View Post
    Ok, so what's the difference between the GK Tech grip knuckles and the Geomaster 3? Apart from £150
    Geomasters 3 have faster steering due to reduced Ackerman, can accept ABS sensors
    GKTech grip knuckle have stock steering speed/Ackerman, can accept ABS sensors
    GKTech grip/drift hybrid knuckle, faster steering, can not accept ABS sensors (equivalent to Geomaster 3 setup as settings 1)
    GKTech Drift knuckle... (equivalent to Geomaster 3 setup as settings 2)

    I have Geo 3's fronts on my 'fast road' S15. Personally I really like the faster steering as it's not over done, Modern car quickness with a hydraulic rack.

  20. #20
    Guest ps13ben's Avatar
    Join Date
    Dec 2017
    Location
    Kent
    Posts
    194
    Rides
    0
    I must admit i went for a set of front Geomaster 3 knuckles in the end as it seemed like a good all round solution with the added bonus of quicker steering, only problem is i brought them second hand off a gent on the mighty ebay which im still waiting for them to arrive
    i hope i wont get done over, really looking forward to trying them out. the PS13 has some chassis geometry gremlins after lowering which i hope to get sorted.

    dare i say it but for fast road/ track what alignment figures are you guys running?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •