Altered Suspension Geometry Spring Rates
Thread Starter
Joined: Aug 2009
Posts: 402
Likes: 13
From: Evansville, IN
Car: 1984 Trans Am WS6
Engine: LG4
Transmission: T56
Axle/Gears: 3.23 LSD
Altered Suspension Geometry Spring Rates
Those who've lowered your panhard bar:
what spring rates and sway bars are you running?:
are you stock geometry in the front, or on extended ball joints or drop spindles?:
coilovers or stock style config?:
sbc/bbc/ls- iron or aluminum block/heads?:
auto trans or manual?:
autox/ hpde/ tt/ road race/ drift/ street, and experience, licensing or accolades?:
1050#/F now, trying to figure out a rough ballpark to start with for rears. I know 5:1 is typical for stock geometry, not sure where to begin with this. Thought this could be a useful thread for those wandering away from the general's roll center placement.
what spring rates and sway bars are you running?:
are you stock geometry in the front, or on extended ball joints or drop spindles?:
coilovers or stock style config?:
sbc/bbc/ls- iron or aluminum block/heads?:
auto trans or manual?:
autox/ hpde/ tt/ road race/ drift/ street, and experience, licensing or accolades?:
1050#/F now, trying to figure out a rough ballpark to start with for rears. I know 5:1 is typical for stock geometry, not sure where to begin with this. Thought this could be a useful thread for those wandering away from the general's roll center placement.
Joined: Aug 2006
Posts: 12,805
Likes: 107
From: Central NJ
Car: 86 Trans Am
Engine: 408 stroker sbc
Transmission: TKO600
Axle/Gears: Moser full floater m9, 3:70 trutrac
Re: Altered Suspension Geometry Spring Rates
I use 1050lb fronts with tall joints and a bit lowered. 250 rears with a dropped panhard. 36mm front bar, 19mm rear. Koni yellows
Joined: Sep 2010
Posts: 1,626
Likes: 46
From: Double Bratville
Car: '89 Formula
Engine: LS2
Transmission: 4L65E
Axle/Gears: MW 3.42 12 Bolt
Re: Altered Suspension Geometry Spring Rates
11" #900 Hyperco is #1 lighter than Eibach #850 9.5".
Joined: Apr 2017
Posts: 54
Likes: 5
From: USA
Car: 1988 IROCZ
Engine: ZZ4
Transmission: T-56
Axle/Gears: MOSER 9"
Re: Altered Suspension Geometry Spring Rates
Hey TEDS, With your weight-jacks, what did you use for isolators on the front?
Joined: Sep 2010
Posts: 1,626
Likes: 46
From: Double Bratville
Car: '89 Formula
Engine: LS2
Transmission: 4L65E
Axle/Gears: MW 3.42 12 Bolt
Re: Altered Suspension Geometry Spring Rates
It's just heater hose split open and zip tied as in the pic, a little grease added too. Works fine.
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