smurfkiller

i dont track my car but i do play on back country roads.

c6 z51, johnny oconnell sway bars (set to soft on rear) hyperco track springs , i dont know my corner weights or cross weights , alignment set to pfadt street specs

since i put on the hyperco springs (freebies) i have noticed understeer at low speeds havent pushed it hard at speed.
today on a curve i used to gingerly used take at 40 , today at 30 it was massive understeer almost went completely straight

i have the car lowered on lowering bolts to where it sits level

i would think i need to lower the front a lil to put more weight over the front tires, but im just guessing. do i need to put some preload in the front sway bars endlinks? or do i need to stiffen up the rear bar?

if i can get the car on some scales what kinda weight bias would be a good starting point


thanks for the help guys

mountainbiker2

Since you have Johnny O'Connell bars on, I would give Pfadt a call for all your questions. They have great customer service.

Steve A.

Short-Throw

What are the springs you put on rated at?

Does the car push equally as bad in both directions?

Did you adjust the height of the car differently when putting on these springs?

What is the measurement from both the front and rear jacking points to the ground?

AU N EGL

what are your alignment specs?

and age of tires? Not millage but age ?

Jason

Get it corner balanced and aligned. You have to find zero before you can start making adjustments. And test on a track, not a public road.

Scooter70

If your only changes were the springs and sway bars, you probably have too much front roll stiffness relative to the rear. What are the spring rates? Stiffen up the rear sway bar and see if that helps. Also, bring that car back up. If that's it in your avatar, it too low. It may look good but being slammed isn't helping your handling.

smurfkiller

having trouble finding the spring rates

they are hyperco # 12407hpt front / 12409hpt rear

after install the springs reset the alignment to pfadt street specs

i did notice this morn on a differnt turn it didnt push anywhere as bad maybe it is more the pavement on that road.

keep in mind this is my dd im not looking to track the car so i dont wanna change the ride height much. also not racing around on public roads just spirited driving

SSSUPRA

My guess, not enough rear roll stiffness and your dampers are probably bottoming out under cornering loads.

Bill Dearborn

If you are noticing the understeer with your spirited driving then increasing ride height may help as the car definitely looks too low. If it is too much for the track it is definitely too much for the street. Increasing rear roll resistance or decreasing front roll resistance will help but the ride height can make handling even more dicey on the street Vs a track where the pavement is less inconsistent.

Bill

smurfkiller

i will put the rear sway bar on the middle setting and see if that helps

if not then maybe ill raise it up a lil