I finally have adjustable arms... Now what? - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Sleepy_Steve · 10-30-2016, 07:41 PM

So I have adjustable arms on my car now because NASA-TT4 seems like it will have a more open rule-set than NASA-TTD/C, and it seems like a good power to weight class for my S14 with stock SR.

The front tension rods seem pretty basic, I left those as close as I could to the factory arm lengths. In road racing with a manual rack, is there any reason to deviate from that?

Rear camber and toe arms are pretty straight forward. The rear traction arm length I know very little about. - I understand that the factory S14 rear geometry will gain both negative camber, and toe-in under compression. So now for the main two questions I have:

What effect does lengthening the rear traction arm have on camber gain / loss. Same for toe-in/out?
What effect does shortening the rear traction arm have on camber gain / loss. Same for toe-in/out?

Thanks guys!

KAT-PWR · 10-30-2016, 08:12 PM

Read books

rawgarage · 10-30-2016, 10:07 PM

Theres a suspension thread in here... OGs dripping sauce over the years

jedi03 · 10-31-2016, 07:53 AM

yup I suggest a book on suspension geometry as well...

tuzzio · 10-31-2016, 08:02 AM

Find racecar shop
get racecar alignment
race car

STR8 H8N · 10-31-2016, 08:04 AM

ZenkiKid · 10-31-2016, 10:31 AM

Quote:

Originally Posted by Sleepy_Steve

So I have adjustable arms on my car now because NASA-TT4 seems like it will have a more open rule-set than NASA-TTD/C, and it seems like a good power to weight class for my S14 with stock SR.

The front tension rods seem pretty basic, I left those as close as I could to the factory arm lengths. In road racing with a manual rack, is there any reason to deviate from that?

Rear camber and toe arms are pretty straight forward. The rear traction arm length I know very little about. - I understand that the factory S14 rear geometry will gain both negative camber, and toe-in under compression. So now for the main two questions I have:

What effect does lengthening the rear traction arm have on camber gain / loss. Same for toe-in/out?
What effect does shortening the rear traction arm have on camber gain / loss. Same for toe-in/out?

Thanks guys!

http://nissanroadracing.com/

10-30-2016, 07:41 PM	#1
Sleepy_Steve Zilvia Member Join Date: Feb 2010 Location: Maryland Posts: 277 Trader Rating: (9) Feedback Score: 9 reviews	I finally have adjustable arms... Now what? So I have adjustable arms on my car now because NASA-TT4 seems like it will have a more open rule-set than NASA-TTD/C, and it seems like a good power to weight class for my S14 with stock SR. The front tension rods seem pretty basic, I left those as close as I could to the factory arm lengths. In road racing with a manual rack, is there any reason to deviate from that? Rear camber and toe arms are pretty straight forward. The rear traction arm length I know very little about. - I understand that the factory S14 rear geometry will gain both negative camber, and toe-in under compression. So now for the main two questions I have: What effect does lengthening the rear traction arm have on camber gain / loss. Same for toe-in/out? What effect does shortening the rear traction arm have on camber gain / loss. Same for toe-in/out? Thanks guys! __________________ '95 240 \| @SleepySteve72

10-30-2016, 08:12 PM	#2
KAT-PWR Nissanaholic! Join Date: Dec 2011 Location: US Posts: 2,040 Trader Rating: (11) Rides Gallery: KAT-PWR Feedback Score: 11 reviews	Read books __________________ MRP Manufacturing

10-30-2016, 10:07 PM	#3
rawgarage Banned from the Marketplace Join Date: Oct 2007 Location: h o u s t o n Age: 36 Posts: 5,986 Trader Rating: (75) Feedback Score: 75 reviews	Theres a suspension thread in here... OGs dripping sauce over the years

10-31-2016, 07:53 AM	#4
jedi03 Nissanaholic! Join Date: Jul 2008 Location: albuquerque Posts: 1,842 Trader Rating: (8) Feedback Score: 8 reviews	yup I suggest a book on suspension geometry as well...

10-31-2016, 08:02 AM	#5
tuzzio Post Whore! Join Date: Oct 2013 Location: Western Mass. Posts: 2,649 Trader Rating: (3) Feedback Score: 3 reviews	Find racecar shop get racecar alignment race car

10-31-2016, 08:04 AM	#6
STR8 H8N BANNED Join Date: Jan 2011 Location: PISTOLVANIA Age: 40 Posts: 2,495 Trader Rating: (0) Feedback Score: 0 reviews