Road Racing / Autocross & Time Attack Road Racing / AUTOX, HPDE, Time Attack

Rear spring rate + sway bar size

Thread Tools
 
Search this Thread
 
Old Aug 23, 2004 | 12:35 AM
  #1  
deviant1's Avatar
Thread Starter
Member
 
Joined: Jan 2002
Posts: 1,266
Likes: 0
Default Rear spring rate + sway bar size

Ive heard running a stiffer spring in the rear of the car works better if you have a small rear sway bar. With a setup of 400 in the front and 500 in the rear, will that be a good match-up with a 22mm ITR rear bar and 26mm Si front bar?
Reply
Old Aug 23, 2004 | 12:53 AM
  #2  
slammed_93_hatch's Avatar
Honda-Tech Member
 
Joined: May 2002
Posts: 13,483
Likes: 0
From: cali
Default Re: Rear spring rate + sway bar size (deviant1)

there is no set rule when it comes to suspensions. in FF MOST people want a stiff rear and a softer front. some people get there there cars to be damn fast with a front biasis set-up, so its really how you drive.


with me i like the springs to do more work then the sway, i have a small 19mm rear sway, and no front sway running 380f-450 rear.


if i were you id ditch the front sway and put the rear on and see how you like it.

IMO the 26mm bar up front will need much high rates in the rear to counter act it.


again like i always say im not an expert these are just my opinion take them for what you will
Reply
Old Aug 23, 2004 | 09:58 PM
  #3  
deviant1's Avatar
Thread Starter
Member
 
Joined: Jan 2002
Posts: 1,266
Likes: 0
Default Re: Rear spring rate + sway bar size (slammed_93_hatch)

would a 26mm front bar, 22mm rear bar, 400 in the front and 500 in the rear spring rates give me understeer or oversteer or neutral?

or should i keep my front springs stiffer than the rear ones? I currently have the OTS ground control rates which are 330 in the front and 250 in the rear. I wanted to go stiffer in the rear to help reduce the chance of subframe tearout in the rear even tho i have the beaks kit.
Reply
Old Aug 23, 2004 | 09:59 PM
  #4  
TeamSlowdotOrg's Avatar
 
Joined: May 2002
Posts: 2,076
Likes: 0
From: Columbia, MO, USA
Default Re: Rear spring rate + sway bar size (deviant1)

Depends on a lot of things. I thought my car was pretty neutral that way.
Reply
Old Aug 23, 2004 | 10:27 PM
  #5  
slammed_93_hatch's Avatar
Honda-Tech Member
 
Joined: May 2002
Posts: 13,483
Likes: 0
From: cali
Default Re: Rear spring rate + sway bar size (TeamSlowdotOrg)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TeamSlowdotOrg &raquo;</TD></TR><TR><TD CLASS="quote">Depends on a lot of things. I thought my car was pretty neutral that way. </TD></TR></TABLE>

and see i would never think of putting afront bar on my car.

driver drive different simple as that
Reply
Old Aug 23, 2004 | 10:28 PM
  #6  
TeamSlowdotOrg's Avatar
 
Joined: May 2002
Posts: 2,076
Likes: 0
From: Columbia, MO, USA
Default Re: Rear spring rate + sway bar size (slammed_93_hatch)

I didn't put a front bar on, that's the stock bar.
Reply
Old Aug 23, 2004 | 10:33 PM
  #7  
slammed_93_hatch's Avatar
Honda-Tech Member
 
Joined: May 2002
Posts: 13,483
Likes: 0
From: cali
Default Re: Rear spring rate + sway bar size (TeamSlowdotOrg)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TeamSlowdotOrg &raquo;</TD></TR><TR><TD CLASS="quote">I didn't put a front bar on, that's the stock bar. </TD></TR></TABLE>

haha my bad will i wouldn't ever put a front bar on my 92 hatch
Reply
Old Aug 23, 2004 | 10:37 PM
  #8  
justBLZE's Avatar
Chopper 2 Hopper
20 Year Member
 
Joined: Oct 2002
Posts: 1,035
Likes: 0
From: Chicago, IL, USA
Default Re: Rear spring rate + sway bar size (TeamSlowdotOrg)

How come some of you run higher spring rate in the back?

Wouldn't that be perfect for drag racing, where the back wouldn't "squat" so much.

I think that road racing you want to take the corners with as little body roll as possible hence the front spring being stiffer, brand coilovers out there seem to have similar spring rate layout..

For sure I know I got lots to learn.
Reply
Old Aug 23, 2004 | 10:42 PM
  #9  
slammed_93_hatch's Avatar
Honda-Tech Member
 
Joined: May 2002
Posts: 13,483
Likes: 0
From: cali
Default Re: Rear spring rate + sway bar size (tommy69)

if you read my first post i kinda covered it butttt it has been coverd a million times in here as i learn when i came in here and asked a question very similair to yours.


first thing first when i say higher or softer, its all relative front to back.


now having a higher spring rate in front well usually give you understeer, understeer= slow racing.


having a higher srping rate in the rear will get you oversteer, oversteer equals fast driving.

now there are some people in here who race at the top of the game and get there car to oversteer with higher spring rates in the back.


now when i say oversteer is better i really should say that the car will oversteer and wont understeer, becuase you can fix oversteer buy you can't do **** for understeer.

and of course you don't want you *** flipin out at every corner since this is a RACE not drifting
Reply
Old Aug 24, 2004 | 02:51 AM
  #10  
deviant1's Avatar
Thread Starter
Member
 
Joined: Jan 2002
Posts: 1,266
Likes: 0
Default Re: Rear spring rate + sway bar size (slammed_93_hatch)

i found this in another thread:

ADJUSTMENT = TO INCREASE UNDERSTEER / TO INCREASE OVERSTEER
Front Tire Pressure = Lower / Higher
Rear Tire Pressure = Higher / Lower
Front Tire Section = Small / Larger
Rear Tire Section = Larger / Smaller
Front Wheel Camber= More Positive / More Negative
Rear Wheel Camber= More Negative / More Positive
Front Springs= Stiffer / Softer
Rear Springs= Softer / Stiffer
Front Anti-Roll Bar= Thicker (stiffer) / Thinner (weaker)
Rear Anti-Roll Bar= Thinner (weaker) / Thicker (stiffer)
Weight Distribution= More Forward / More Rearward

if your front and rear sway bars = understeer and your springs = oversteer, then is your car neutral? sorry for the noobness, just trying to learn more about this.

also, if i ran 400F and 500R with the 22mm in the rear and 26mm up front, the rear end becomes more stiff which would induce oversteer, but would the 26mm up front with the stiffer rates cancel out the stiffer rear? would it become more neutral with 450F and 500R with the the two bars? or would it take something a lot higher than 500 in the rear to overpower the 26mm front bar and get the car to oversteer like crazy?

Thanks for all the help slammed_93_hatch


Modified by deviant1 at 4:40 AM 8/24/2004
Reply
Old Aug 24, 2004 | 05:43 AM
  #11  
clemsonhatch's Avatar
Honda-Tech Member
 
Joined: Feb 2003
Posts: 972
Likes: 1
From: Upstate, SC
Default Re: Rear spring rate + sway bar size (deviant1)

We run GC 450f 550r Koni yellows

no front bar...took it off

ST rear on middle setting

car feels GREAT
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
VarTheVar
Road Racing / Autocross & Time Attack
35
Jun 23, 2018 05:23 PM
B18C5-EH2
Suspension & Brakes
1
Feb 5, 2018 01:38 PM
Motionek55
Suspension & Brakes
6
Sep 4, 2012 03:53 PM
VeilSide_Mas
Suspension & Brakes
3
Apr 24, 2007 12:13 PM
deviant1
Honda Civic / Del Sol (1992 - 2000)
8
Aug 25, 2004 07:23 PM




All times are GMT -8. The time now is 09:49 PM.