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 12-28-2014, 10:05 PM   #1
JDMBart
Banned from the Marketplace
 
Join Date: Aug 2013
Location: Chicago
Posts: 340
Trader Rating: (-1)
JDMBart is an unknown quantity at this point
Feedback Score: -1 reviews
SAI way off... Alignment question

Alright so I have a s13 240sx and my SAI and included angle is way off. I'm not exactly sure what I should look into to fix this or if it is even worth my time to fix. Here are my specs. I know my car was in a small collision previously but it was only the radiator support being a little bent on the left side so I do not think it affects this. Any input would be great.

Front Left
Camber -3.1 (spec is 0- 1.5)
Caster 6.9 (Spec is 6.0-7.5)
Toe 0.10 (Spec is .02-.11)
SAI 16.6(Spec is 12.5- 14.0)
Included Angle 13.6 (spec is 11.0 to 14.0)

Front Right
Camber -3.1 (spec is 0- 1.5)
Caster 7.1 (Spec is 6.0-7.5)
Toe 0.10 (Spec is .02-.11)
SAI 22.1 (Spec is 12.5 - 14.0)
Included Angle 19.0 (spec is 11-14.0)
JDMBart is offline   Reply With Quote
Sponsored Links
Old 12-28-2014, 11:56 PM   #2
ixfxi
Post Whore!
 
ixfxi's Avatar
 
Join Date: Apr 2006
Location: bangin on my chest Account: BANNED #fucksupreme
Age: 78
Posts: 5,890
Trader Rating: (3)
ixfxi is close to perfectionixfxi is close to perfectionixfxi is close to perfectionixfxi is close to perfectionixfxi is close to perfectionixfxi is close to perfectionixfxi is close to perfectionixfxi is close to perfectionixfxi is close to perfectionixfxi is close to perfectionixfxi is close to perfection
Feedback Score: 3 reviews
google is your friend, bud
http://www.aligncraft.com/terms/term...%20Inclination
ixfxi is offline   Reply With Quote
Old 12-29-2014, 09:07 AM   #3
JDMBart
Banned from the Marketplace
 
Join Date: Aug 2013
Location: Chicago
Posts: 340
Trader Rating: (-1)
JDMBart is an unknown quantity at this point
Feedback Score: -1 reviews
Quote:
Originally Posted by ixfxi View Post
Thanks, tomorrow I'm going to verify straightness of the subframe, contol arm, spindle.
JDMBart is offline   Reply With Quote
Old 12-29-2014, 11:53 AM   #4
Def
Post Whore!
 
Join Date: Apr 2004
Location: Houston, TX
Posts: 2,699
Trader Rating: (16)
Def is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfection
Feedback Score: 16 reviews
If you have slotted coilover brackets, make sure they're pulled to the same location (I shim mine so I pull out as hard as I can so I get a consistent attachment there). This could be why yours is off.

I'd also zero out that toe. Over 3 deg camber plus that much toe is going to chew through your tires in no time.
__________________
S13 Hatch - Goes around tracks quickly
DEFSPORT
Def is offline   Reply With Quote
Old 01-03-2015, 12:32 AM   #5
!Zar!
Post Whore!
 
!Zar!'s Avatar
 
Join Date: Nov 2004
Location: Canada
Posts: 14,560
Trader Rating: (27)
!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection
Feedback Score: 27 reviews
What size and offset are your wheels? That has an effect on your SAI.
__________________
!Zar! is offline   Reply With Quote
Old 01-03-2015, 12:41 AM   #6
JDMBart
Banned from the Marketplace
 
Join Date: Aug 2013
Location: Chicago
Posts: 340
Trader Rating: (-1)
JDMBart is an unknown quantity at this point
Feedback Score: -1 reviews
Quote:
Originally Posted by !Zar! View Post
What size and offset are your wheels? That has an effect on your SAI.
at the time i got this alignment i had mb battles that were 17x9.5 +15

now I have wheels that are 18x10.5 and 18x11 +10.

Not sure how that will change things
JDMBart is offline   Reply With Quote
Old 01-03-2015, 12:48 AM   #7
!Zar!
Post Whore!
 
!Zar!'s Avatar
 
Join Date: Nov 2004
Location: Canada
Posts: 14,560
Trader Rating: (27)
!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection!Zar! is close to perfection
Feedback Score: 27 reviews
Changing your wheels offsets and widths has an effect on your scrub radius and SAI.

You're moving the steering centerline around.

Though I might be confusing the two.
__________________
!Zar! is offline   Reply With Quote
Old 01-03-2015, 09:19 AM   #8
JDMBart
Banned from the Marketplace
 
Join Date: Aug 2013
Location: Chicago
Posts: 340
Trader Rating: (-1)
JDMBart is an unknown quantity at this point
Feedback Score: -1 reviews
Quote:
Originally Posted by !Zar! View Post
Changing your wheels offsets and widths has an effect on your scrub radius and SAI.

You're moving the steering centerline around.

Though I might be confusing the two.
Well the thing is the offset of the wheels is the same on both sides, but the sai has over a 8 degree difference
JDMBart is offline   Reply With Quote
Old 01-03-2015, 06:54 PM   #9
Def
Post Whore!
 
Join Date: Apr 2004
Location: Houston, TX
Posts: 2,699
Trader Rating: (16)
Def is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfectionDef is close to perfection
Feedback Score: 16 reviews
Quote:
Originally Posted by JDMBart View Post
Well the thing is the offset of the wheels is the same on both sides, but the sai has over a 8 degree difference
Upper strut bolt... read my earlier post.
__________________
S13 Hatch - Goes around tracks quickly
DEFSPORT
Def is offline   Reply With Quote
Old 01-03-2015, 06:59 PM   #10
JDMBart
Banned from the Marketplace
 
Join Date: Aug 2013
Location: Chicago
Posts: 340
Trader Rating: (-1)
JDMBart is an unknown quantity at this point
Feedback Score: -1 reviews
Quote:
Originally Posted by Def View Post
Upper strut bolt... read my earlier post.
Are you talking about the bolts at the top of the strut tower that connect the coil to the strut tower?
JDMBart is offline   Reply With Quote
Old 01-05-2015, 05:10 AM   #11
Croustibat
Nissanaholic!
 
Join Date: Aug 2011
Location: France - Toulouse
Age: 39
Posts: 1,850
Trader Rating: (0)
Croustibat is an unknown quantity at this point
Feedback Score: 0 reviews
These would not affect SAI...

def is talking about the knuckle to coilover bolts.
Croustibat is offline   Reply With Quote
Old 01-05-2015, 12:08 PM   #12
JDMBart
Banned from the Marketplace
 
Join Date: Aug 2013
Location: Chicago
Posts: 340
Trader Rating: (-1)
JDMBart is an unknown quantity at this point
Feedback Score: -1 reviews
Quote:
Originally Posted by Croustibat View Post
These would not affect SAI...

def is talking about the knuckle to coilover bolts.
Thought so, I checked them the hole isn't slotted and they are in the same spot
JDMBart is offline   Reply With Quote
Old 01-06-2015, 07:04 AM   #13
Croustibat
Nissanaholic!
 
Join Date: Aug 2011
Location: France - Toulouse
Age: 39
Posts: 1,850
Trader Rating: (0)
Croustibat is an unknown quantity at this point
Feedback Score: 0 reviews
meaning the car is seriously bent (SAI is around 15° ). It can be from a bent knuckle, upper chassis mount, or really crappy coilovers with poorly slotted mounts. My money would be on the knuckle though.
Croustibat is offline   Reply With Quote
Old 01-06-2015, 09:15 AM   #14
JDMBart
Banned from the Marketplace
 
Join Date: Aug 2013
Location: Chicago
Posts: 340
Trader Rating: (-1)
JDMBart is an unknown quantity at this point
Feedback Score: -1 reviews
Quote:
Originally Posted by Croustibat View Post
meaning the car is seriously bent (SAI is around 15° ). It can be from a bent knuckle, upper chassis mount, or really crappy coilovers with poorly slotted mounts. My money would be on the knuckle though.
Good input I'm going to be changing the spindle on that side along with both of the lower control arms. Doubt the stance coils are causing anything. Do you think I will be able to see a bend on the spindle?
JDMBart is offline   Reply With Quote
Old 01-06-2015, 09:38 AM   #15
Croustibat
Nissanaholic!
 
Join Date: Aug 2011
Location: France - Toulouse
Age: 39
Posts: 1,850
Trader Rating: (0)
Croustibat is an unknown quantity at this point
Feedback Score: 0 reviews
Your best bet is to measure from hole to hole on a known good knucke, then check yours. i don't think you can see that by eye unless you have already seen that kind of damage, it could be just a millimeter here and there.
Croustibat is offline   Reply With Quote
Reply

Bookmarks

Tags
alignment, sai


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 10:51 PM.


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