Removing under steer UPDATE 12/12/25

[FASTFATBOY]

Originally Posted by fz4k98

This spring i installed adjustable coilovers in front and did a track day. I could adjust the coilovers to increase corner speed but the understeer would be the same, just at higher speed.

The understeer on my car was the same on original shocks as the coilovers, just different corner speed.

Same thing I experienced on the ZL1 after adding the 35mm rear bar and-1.75 camber.

Entry speed went up some, but once you crossed that threshold it was doing the exact same thing just at a higher entry speed.

[CamaroCracka]

Originally Posted by KillboyPowerhead

Not sure if the 1LE and/or ZL1 bars are hollow or solid; believe SS is solid?

The 1LE, ZL1 and Z28 bars are all supposed to be solid. I have seen many people say the SS bars are solid, but I cut apart a front and rear bar from my vert and they were both hollow.

[KillboyPowerhead]

Originally Posted by CamaroCracka

The 1LE, ZL1 and Z28 bars are all supposed to be solid. I have seen many people say the SS bars are solid, but I cut apart a front and rear bar from my vert and they were both hollow.

Thought I read that they started off hollow but changed to solid at some year, but this was awhile ago and don't really remember anymore.

[CamaroCracka]

Originally Posted by KillboyPowerhead

Thought I read that they started off hollow but changed to solid at some year, but this was awhile ago and don't really remember anymore.

Perhaps, the vert is a 2011 and the turbo car is a 2010.

[FASTFATBOY]

The BMR 1 inch 220/460 springs are installed, VERY noticeable difference in the under steer dept.

Will get it aligned and see what happens.

[FASTFATBOY]

Originally Posted by CamaroCracka

The 1LE, ZL1 and Z28 bars are all supposed to be solid. I have seen many people say the SS bars are solid, but I cut apart a front and rear bar from my vert and they were both hollow.

Something people don't take into account on these cars is the swaybar bushings are bonded to the bar itself so a 28mm stock bar may act like a 30 mm aftermarket bar.

The DSE 35mm rear bar I have pivots in the bushings like all bars used to and aftermarket bars still do.

[morepowerjoe]

Originally Posted by FASTFATBOY

The BMR 1 inch 220/460 springs are installed, VERY noticeable difference in the under steer dept.

Will get it aligned and see what happens.

Thanks for letting us know. I'm considering getting a rear sway bar at first. I have bilstein b6 shocks and struts with zl1 drop springs from eibach. It's pretty stiff and rides really rough on the street with a ton of understeer.

[FASTFATBOY]

Originally Posted by morepowerjoe

Thanks for letting us know. I'm considering getting a rear sway bar at first. I have bilstein b6 shocks and struts with zl1 drop springs from eibach. It's pretty stiff and rides really rough on the street with a ton of understeer.

Mine is just a tad rougher than it was from GM, the 1LE rides much rougher than the wifes 2010 SS, hell hers rides like a damn Camry.

The Eibach kit is for SS and ZL1.

[FASTFATBOY]

UPDATED