Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Go Back   Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum > General > Tech Talk

Tech Talk Technical Discussion About The Nissan 240SX and Nissan Z Cars


Reply
 
Thread Tools Display Modes
Old 05-26-2020, 10:14 AM   #7771
Bleakley
Zilvia Addict
 
Join Date: Apr 2011
Location: Near Pittsburgh, PA
Posts: 627
Trader Rating: (1)
Bleakley is an unknown quantity at this point
Feedback Score: 1 reviews
Searched a little. Bad information everywhere.
Do J30 rear sway bars bolt up to S13 subframe?

Doing some mods to my my car. One of which is using GKTech’s weld-in LCA Mount so it’s the same as if running an S14 subframe.
My car came factory HICAS, I’ve already swapped in a non-HICAS S13 subframe and retained the 21mm rear sway bar. I think it’s going to be too thick, but didn’t want the 15mm bar either. Was hoping the 19mm j30 nar would be the answer? And hollow to boot!

Coming here for your guys’ thoughts.
Bleakley is offline   Reply With Quote
Sponsored Links
Old 05-30-2020, 09:40 AM   #7772
PoorMans180SX
Zilvia.net Advertiser
 
PoorMans180SX's Avatar
 
Join Date: Nov 2005
Location: Michigan
Age: 32
Posts: 5,093
Trader Rating: (16)
PoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfection
Feedback Score: 16 reviews
Send a message via AIM to PoorMans180SX
Quote:
Originally Posted by TheRealSy90 View Post
I have problem overcentering.

Rack mounts were moved forward on the subframe, along with rack-forward bushings. Toe was ran around 1/8" out to 1/16" out.

The FLCA I have are the S13 +39>+74mm version set to full-short length.
Knuckles are the newest "Pro Drift" knuckle with caster trail and adjustable ackerman, washers set to less-ackerman.

Top hats are the newest "V3 Premium" with separate caster and camber adjustment. I initially had them set to least camber/least caster (forward and outboard effectively), at one point I moved the top hats caster adjustment toward the firewall about 50%, and this seemed to help the overcentering a little bit but was still doing it randomly.


A little off topic but with the GkTech outer tie rods and drop knuckles on a 17x9 wheel, I ended up having to cut a lot out of the tie rod shank and use 0 bump-steer spacers so that the tie rod wouldn't hit the wheel. At this point the outer tie rods are the same height as oem would be and can't really drop them any lower.
Sorry I meant to reply to this but it's detailed and I've been stacked. What is your actual caster set at? You need to run low caster with those knuckles, like 4* or less to get them to function right. Often times you still need to adjust the lower arm for caster despite the top hats being in the forward position. Also the low ackerman setting might not be the best if you want good feel.

Yes, because the knuckles are for drift only, the bumpsteer adjustment is optimized for low caster, big angle setups. You can just run an OEM style outer with those knucks.

So basically either limit your lock with lock stops if you want to run a very self-steering setup or dial out the caster.
__________________
Build: http://zilvia.net/f/showthread.php?t=643065

Friends don't let friends buy knock-offs.

Last edited by PoorMans180SX; 06-02-2020 at 11:54 AM..
PoorMans180SX is offline   Reply With Quote
Old 07-05-2020, 02:51 AM   #7773
Marphie21
 
Join Date: May 2012
Location: Philippines
Posts: 25
Trader Rating: (0)
Marphie21 is an unknown quantity at this point
Feedback Score: 0 reviews
Has anyone tried out the new GKTECH SUBFRAME ANTI-SQUAT REDUCTION WELD IN KIT for the S13 generation subframes?

Any reviews about the actual handling changes? Any problems after welding them on?

Last edited by Marphie21; 07-05-2020 at 09:33 AM..
Marphie21 is offline   Reply With Quote
Old 07-05-2020, 08:50 AM   #7774
S14rebuild
Zilvia FREAK!
 
Join Date: May 2019
Location: Florida-FAIL
Posts: 1,388
Trader Rating: (5)
S14rebuild is a jewel in the roughS14rebuild is a jewel in the roughS14rebuild is a jewel in the roughS14rebuild is a jewel in the roughS14rebuild is a jewel in the roughS14rebuild is a jewel in the roughS14rebuild is a jewel in the rough
Feedback Score: 5 reviews
The guy literly 2 post above yours just said he installed them.....
S14rebuild is offline   Reply With Quote
Old 07-05-2020, 01:42 PM   #7775
PoorMans180SX
Zilvia.net Advertiser
 
PoorMans180SX's Avatar
 
Join Date: Nov 2005
Location: Michigan
Age: 32
Posts: 5,093
Trader Rating: (16)
PoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfection
Feedback Score: 16 reviews
Send a message via AIM to PoorMans180SX
Quote:
Originally Posted by Bleakley View Post
Searched a little. Bad information everywhere.
Do J30 rear sway bars bolt up to S13 subframe?
Yes they do. Seems to work well for most people..

Geomaster 3's up front. At some point I'll level the car and level the camera so you can get an accurate picture, this is rough for now. Car is going lower.





All the clearance with GKtech stuff (my sway bar arms might be upside down). The trailing wheel actually hits the bottom edge of the lower control arm. Now I know why all the aftermarket arms are thinner. Not sure if I want to fuck with it or just build the lock stops so it doesn't happen.

__________________
Build: http://zilvia.net/f/showthread.php?t=643065

Friends don't let friends buy knock-offs.
PoorMans180SX is offline   Reply With Quote
Old 07-05-2020, 07:07 PM   #7776
S14rebuild
Zilvia FREAK!
 
Join Date: May 2019
Location: Florida-FAIL
Posts: 1,388
Trader Rating: (5)
S14rebuild is a jewel in the roughS14rebuild is a jewel in the roughS14rebuild is a jewel in the roughS14rebuild is a jewel in the roughS14rebuild is a jewel in the roughS14rebuild is a jewel in the roughS14rebuild is a jewel in the rough
Feedback Score: 5 reviews
Quote:
Originally Posted by Marphie21 View Post
Has anyone tried out the new GKTECH SUBFRAME ANTI-SQUAT REDUCTION WELD IN KIT for the S13 generation subframes?

Any reviews about the actual handling changes? Any problems after welding them on?
Nice edit.......
S14rebuild is offline   Reply With Quote
Old 07-05-2020, 07:37 PM   #7777
mr.nismo.
Nissanaholic!
 
mr.nismo.'s Avatar
 
Join Date: Feb 2012
Location: Oxnard, CA
Age: 26
Posts: 1,728
Trader Rating: (30)
mr.nismo. is a jewel in the roughmr.nismo. is a jewel in the roughmr.nismo. is a jewel in the roughmr.nismo. is a jewel in the roughmr.nismo. is a jewel in the roughmr.nismo. is a jewel in the roughmr.nismo. is a jewel in the rough
Feedback Score: 30 reviews
Quote:
Originally Posted by S14rebuild View Post
The guy literly 2 post above yours just said he installed them.....
There's also the part that in that post about actually driving with the modification, not just install..

Sent from my Galaxy Note 10+ using Tapatalk
mr.nismo. is offline   Reply With Quote
Old 07-05-2020, 07:38 PM   #7778
mr.nismo.
Nissanaholic!
 
mr.nismo.'s Avatar
 
Join Date: Feb 2012
Location: Oxnard, CA
Age: 26
Posts: 1,728
Trader Rating: (30)
mr.nismo. is a jewel in the roughmr.nismo. is a jewel in the roughmr.nismo. is a jewel in the roughmr.nismo. is a jewel in the roughmr.nismo. is a jewel in the roughmr.nismo. is a jewel in the roughmr.nismo. is a jewel in the rough
Feedback Score: 30 reviews
Quote:
Originally Posted by PoorMans180SX View Post
Yes they do. Seems to work well for most people..

Geomaster 3's up front. At some point I'll level the car and level the camera so you can get an accurate picture, this is rough for now. Car is going lower.





All the clearance with GKtech stuff (my sway bar arms might be upside down). The trailing wheel actually hits the bottom edge of the lower control arm. Now I know why all the aftermarket arms are thinner. Not sure if I want to fuck with it or just build the lock stops so it doesn't happen.

You know you'll end up fucking with it either way. Might as well just do it lol

Sent from my Galaxy Note 10+ using Tapatalk
mr.nismo. is offline   Reply With Quote
Old 07-05-2020, 10:48 PM   #7779
PoorMans180SX
Zilvia.net Advertiser
 
PoorMans180SX's Avatar
 
Join Date: Nov 2005
Location: Michigan
Age: 32
Posts: 5,093
Trader Rating: (16)
PoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfectionPoorMans180SX is close to perfection
Feedback Score: 16 reviews
Send a message via AIM to PoorMans180SX
Normally yes, but I’m trying to keep this car somewhat simple and don’t really need every degree of angle. That’s what my other chassis is for. The lca extension is way too long, I think I’m just going to use the Nakamura method and put some stock S14 arms on and use spacers if I need them.
__________________
Build: http://zilvia.net/f/showthread.php?t=643065

Friends don't let friends buy knock-offs.
PoorMans180SX is offline   Reply With Quote
Old 07-09-2020, 05:32 PM   #7780
dbeiler
Premium Member
 
dbeiler's Avatar
 
Join Date: Jun 2012
Location: Lancaster county, PA
Age: 29
Posts: 566
Trader Rating: (4)
dbeiler will become famous soon enoughdbeiler will become famous soon enoughdbeiler will become famous soon enoughdbeiler will become famous soon enough
Feedback Score: 4 reviews
Quote:
Originally Posted by PoorMans180SX View Post
All the clearance with GKtech stuff (my sway bar arms might be upside down). The trailing wheel actually hits the bottom edge of the lower control arm. Now I know why all the aftermarket arms are thinner. Not sure if I want to fuck with it or just build the lock stops so it doesn't happen.
You're talking about the inside of the trailing wheel hitting the LCA close to the balljoint? That clearance issue never even crossed my mind when I was thinking about extending my stock LCAs. Good to know. You could always just switch to a bigger wheel size for more room.

I'm using the GKtech LCA extended about 30mm. 18" wheels. Only thing limiting my angle is the back/inside part of the leading wheel is about to hit the brake line bracket. Already has plenty of angle. Haven't measured it yet.

Your caster arms have weight reduction cuts while my arms are solid metal. Wonder what prompted that change? Manufacture cost savings?

__________________
My premium member RB25 S14 build threadhttp://zilvia.net/f/showthread.php?t=542685

My premium member LS1 S13 build threadhttps://zilvia.net/f/showthread.php?t=656994
dbeiler is offline   Reply With Quote
Old 07-10-2020, 08:28 AM   #7781
Marphie21
 
Join Date: May 2012
Location: Philippines
Posts: 25
Trader Rating: (0)
Marphie21 is an unknown quantity at this point
Feedback Score: 0 reviews
Quote:
Originally Posted by S14rebuild View Post
Nice edit.......
Marphie21 is offline   Reply With Quote
Old 07-10-2020, 12:45 PM   #7782
TheRealSy90
Premium Member
 
TheRealSy90's Avatar
 
Join Date: Mar 2009
Location: Maricopa, AZ
Age: 29
Posts: 7,472
Trader Rating: (10)
TheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant futureTheRealSy90 has a brilliant future
Feedback Score: 10 reviews
Quote:
Originally Posted by dbeiler View Post
Your caster arms have weight reduction cuts while my arms are solid metal. Wonder what prompted that change? Manufacture cost savings?
Actually your solid version is the current version. I bent a couple of the cutout versions and they finally just made it solid. Probably a slight production cost benefit also.

As far as the brake line brackets I have always moved the bracket forward one hole and just use the one bolt to hold it, usually is enough room at that point.
__________________
Quote:
Originally Posted by crimsonrockett View Post
Such a good signature.
TheRealSy90 is offline   Reply With Quote
Reply

Bookmarks

Tags
anti-squat, best thread ever, kpi, roll center, steering angle, suspension


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 12:47 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
vB.Sponsors
Copyright © 1998 - 2019, Zilvia.net™