Is there anyway i can make the rear stiffer, other then buying new rear springs? The spring rate on my Ksports are 4kg in the rear an thats wayy to soft. any suggestions?

 

sway bar

 

springs, thats the only way.

not for what he's talking about haha

 

aww shitty. who should i email?

 

ksport. I dunno if they offer replacements, but it wouldn't hurt to try.

 

4KG is about the rate stock for TC..a tad less actually.
They should be stiffer than your current fronts..which are?

4 (kg / mm) = 223.989658 pounds / in
5 (kg / mm) = 279.987073 pounds / in
6 (kg / mm) = 335.984488 pounds / in
7 (kg / mm) = 391.981902 pounds / in
8 (kg / mm) = 447.979317 pounds / in


EDITED:
Found the rates for your set up. Rears should be at least the same as fronts. I see a lot of people go with 6KG/6KG in other set ups here.

KSPORTS
Chevrolet Cobalt - 2005 - 2010 - CCV040-KP 1600 (F)7.5KG/420LB (R)4KG/224LB

 

Footballs

 

Get a sway bar! It'll be a huge change in the way the car handles (particilarly roll) without making the suspension so hard you can't stand it.

Scott

 

he probably needs it for stance reasons to make sure he doesnt rub and **** on bumps?

 

+1

 

Problem solved

 

you know stock spring rates??

 

Stock rates are 154 lbs (linear) front and 160-228lbs rear (Prog).

 

Thank you sir!

 

Eibachs are stiff as hell

 

Dom i got it. sell my your coilovers and buy my springs and struts

 

this dude DOES NOT need a rear sway bar...you wanna explain to me how the hell a sway bars going to help him stiffen strut and spring compression lol!!!!!!!!!!

dom your best bet is different spring rates, footballs(literally a football in the rear springs, or drag bags.

not really. probablly stiffer then those k sports though.

 

I love people who don't read threads. How is a sway bar supposed to make the rear stiffer in the same way a set of springs would? I agree with above, footballs would probably be a good cheap solution without buying a set of springs.

 

yea but footballs is also gonna raise the car up and he doesnt really want that lol

 

not neccisarily. drag bags would do that more because they usually repalce the entire spring. footballs you can pump air in and out just like a drag bag. personally dude you just need to pony up the cash and get springs because those 4k springs are bs.

 

haha he told me yest he talked to ksport and they can make them in whatever k he wants

 

nah i talked to Ksport i am getting my new springs before wekfest

 

ronn here is what I measured on my spring tester. TC front
comp.ht. rate in lbs
11 in 150
10 in 280
9 in 450
8 in 620
7 in 750


TC rear
11 100
10.5 in 150
10.0 in 180
9 330
8.00 in 460


Ya I got practically all springs measured....not gonna post tho'

 

haha and this is why we trust your opinion john!

 

always tease me with those Pedders rates! lol all good though, I understand. One day when I feel like tking them off and driving to Charlotte I'll measure them.