Suspension Tech: Swaybar's affect on weight trasfer... - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

*weirdstyles.net* · 01-26-2005, 10:46 PM

I've been reading a "High Performance Suspension Book" to get the basics and more covered on suspension tech, but something is confusing me....

This home-boy is saying if you tighten a sway bar on one end, more weight will be transfered to that end. I suppose he means, example: front, during braking. I figured sway bars wouldn't have an affect on weight transfer except on inside-to-outside transfer during cornering...

Help a confused brutha out....

Disclaimer: Note, I am not a brutha, except to John and Maryann. In those cases the above post is 100% correct. To all others, the post is only 97.6% true.

Var · 01-26-2005, 11:08 PM

As an example, i was having really hard pull to the right every time i got on the gas. The right rear of my sway bar had major preload on it. Everytime i got on the gas and the weight transfered to the rear and it squatted, my car would almost leave my lane and hit someone. The problem went away when i fixed it. If you understand how sway bars work it makes enough sense.

The tighter one end is, the faster it reacts because it is already lifting up the other side of the car. When that end(front or rear) of the car is loaded by braking or accelerating, the suspension compresses and makes the sway bars load up. The tighter end tries to lift up the loose end and the car will travel in the direction of the tighter end. When they are evenly loaded, then the force will cancel out

i think i've got it right. just wait for one of the guru's to correct me

s13irdie2 · 01-26-2005, 11:37 PM

so howd you know how much to tighten on each end? trial and error to see which one feels the best?

Var · 01-26-2005, 11:40 PM

i measured from the bottom of the endlink to the inside lip of the wheel with a micrometer and i made it even on both sides

blu808 · 01-27-2005, 12:45 AM

good call Var =-)

ss045 · 01-27-2005, 10:22 AM

Quote:

Originally Posted by westboroughpimp

i measured from the bottom of the endlink to the inside lip of the wheel with a micrometer and i made it even on both sides

an inside or outside mike? j/k

Var · 01-27-2005, 10:26 AM

i'd be amused if i knew wtf the joke was

thx247 · 01-27-2005, 09:00 PM

I'm off to class so heres a link

http://www.whiteline.com.au/default....aqswaybars.htm

The sway bar is not really lifting the car so much as moving load from one wheel to the other. As one side of the bar compresses, the other side of the bar compresses the opposite spring. How resistant the bar is to twisting, the length of the bar and diameter of the bar dictate how much force the bar transfers between the springs. godammit...gtg...

jmauld · 01-28-2005, 07:29 AM

Quote:

Originally Posted by westboroughpimp

i measured from the bottom of the endlink to the inside lip of the wheel with a micrometer and i made it even on both sides

This reads like you just located the sway bar in the bushings so that it is centered from side to side. Or are saying that you adjusted the endlinks to be equal length?

*sykikchimp* · 01-28-2005, 07:45 AM

Quote:

Originally Posted by jmauld

This reads like you just located the sway bar in the bushings so that it is centered from side to side. Or are saying that you adjusted the endlinks to be equal length?

that's exactly what he's saying.

...this is why adjustable endlinks are so important when you corner weight your car.

jmauld · 01-28-2005, 11:14 AM

I don't think you want to use the swaybar to adjust corner weights, unless you're doing circle tracks.

In fact, when you corner weight your car, you should disconnect the swaybar completely to keep it from monkeying with the weights. Then set it back after you have completed, with no preload.

01-26-2005, 10:46 PM	#1
weirdstyles.net This guy... Join Date: Feb 2003 Location: South Jersey Age: 41 Posts: 889 Trader Rating: (0) Rides Gallery: weirdstyles.net Feedback Score: 0 reviews	Suspension Tech: Swaybar's affect on weight trasfer... I've been reading a "High Performance Suspension Book" to get the basics and more covered on suspension tech, but something is confusing me.... This home-boy is saying if you tighten a sway bar on one end, more weight will be transfered to that end. I suppose he means, example: front, during braking. I figured sway bars wouldn't have an affect on weight transfer except on inside-to-outside transfer during cornering... Help a confused brutha out.... Disclaimer: Note, I am not a brutha, except to John and Maryann. In those cases the above post is 100% correct. To all others, the post is only 97.6% true. __________________ My project car... From dust you were born, And to the ashes you return ~ Kill Switch Engage Family Guy Quagmire: Hey, how old are you sweet thang? Connie: 16. Quagmire: 18? Alllll-right! Connie: Mommmm! Quagmire: I like where this is going, Giggidy giggidy gig-gi-dy!

01-26-2005, 11:08 PM	#2
Var Post Whore! Join Date: Sep 2003 Location: Norcal Age: 43 Posts: 5,032 Trader Rating: (0) Rides Gallery: Var Feedback Score: 0 reviews	As an example, i was having really hard pull to the right every time i got on the gas. The right rear of my sway bar had major preload on it. Everytime i got on the gas and the weight transfered to the rear and it squatted, my car would almost leave my lane and hit someone. The problem went away when i fixed it. If you understand how sway bars work it makes enough sense. The tighter one end is, the faster it reacts because it is already lifting up the other side of the car. When that end(front or rear) of the car is loaded by braking or accelerating, the suspension compresses and makes the sway bars load up. The tighter end tries to lift up the loose end and the car will travel in the direction of the tighter end. When they are evenly loaded, then the force will cancel out i think i've got it right. just wait for one of the guru's to correct me __________________ Hi

01-26-2005, 11:37 PM	#3
s13irdie2 Zilvia Junkie Join Date: Jan 2003 Location: southern cali Age: 38 Posts: 508 Trader Rating: (0) Feedback Score: 0 reviews	so howd you know how much to tighten on each end? trial and error to see which one feels the best? __________________ 1990 s13 IslandMotorsports, Inc.

01-26-2005, 11:40 PM	#4
Var Post Whore! Join Date: Sep 2003 Location: Norcal Age: 43 Posts: 5,032 Trader Rating: (0) Rides Gallery: Var Feedback Score: 0 reviews	i measured from the bottom of the endlink to the inside lip of the wheel with a micrometer and i made it even on both sides __________________ Hi

01-27-2005, 12:45 AM	#5
blu808 Post Whore! Join Date: Dec 2002 Location: Campbell, Ca Age: 42 Posts: 5,010 Trader Rating: (3) Feedback Score: 3 reviews	good call Var =-) __________________

01-27-2005, 10:26 AM	#7
Var Post Whore! Join Date: Sep 2003 Location: Norcal Age: 43 Posts: 5,032 Trader Rating: (0) Rides Gallery: Var Feedback Score: 0 reviews	i'd be amused if i knew wtf the joke was __________________ Hi

01-27-2005, 09:00 PM	#8
thx247 Zilvia FREAK! Join Date: Jan 2003 Location: bay area Posts: 1,455 Trader Rating: (0) Feedback Score: 0 reviews	I'm off to class so heres a link http://www.whiteline.com.au/default....aqswaybars.htm The sway bar is not really lifting the car so much as moving load from one wheel to the other. As one side of the bar compresses, the other side of the bar compresses the opposite spring. How resistant the bar is to twisting, the length of the bar and diameter of the bar dictate how much force the bar transfers between the springs. godammit...gtg...

01-28-2005, 11:14 AM	#11
jmauld Zilvia Junkie Join Date: Apr 2003 Location: Cary, NC Age: 49 Posts: 362 Trader Rating: (0) Feedback Score: 0 reviews	I don't think you want to use the swaybar to adjust corner weights, unless you're doing circle tracks. In fact, when you corner weight your car, you should disconnect the swaybar completely to keep it from monkeying with the weights. Then set it back after you have completed, with no preload. __________________ Jason '95 240sx SE Last edited by jmauld; 01-28-2005 at 11:42 AM..