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Old 06-07-2012, 08:14 PM   #1
TornadoSS
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Drives: 2011 1SS/RS IOM LS3
Join Date: May 2010
Location: Wichita, Kansas
Posts: 1,111
SS gets squirelly under WOT

Since the rear has been apart several times recently for the 9 inch conversion with an S trac posi (mechanical) I am trying to get my alignment dialed in again, Hopefully some of the alignment gurus can help me out here.

The SS has Spohn trailing arms and toe rods and BMR bushings on the spindle side of the trailing arm. Hotchkis chassis max brace on subframe and Hotchkis 1" lowering springs.

The car is wiggling (not violently) very tightly back and forth side to side under hard acceleration (WOT all gears), most notably at the strip, but does this on the street too. It only became apparent after the 9 inch conversion and the much faster/aggressive acceleration now.

The old numbers were

Front Left Right
Camber -.8 -1.0
Caster 5.9 5.8
Toe in .09 .11
Total Toe .20 Steer ahead -.01
Rear
Camber -.3 -.4
Toe in .10 .09
Total Toe .18 Thrust angle 0.01
NEW current Numbers -

Front Left Right
Camber -.8 -1.1
Caster 5.8 5.9
Toe In .05 .05
Total Toe .10 Steer ahead 0.00
Rear
Camber -.8 -.8
Toe In .07 .07
Total toe .14 Thrust angle 0.00

Can someone give me some advice for which direction I should go with the numbers? Since the new alignment the car did get better with less wiggling but it still has some movement. I am guessing it wants the rear toe and camber closer to 0? It did pretty well with the rear camber near -.3 or -.4 on the stock diff. I have checked all the subframe bolts and hotchkis attaching points.
I am shooting for a happy medium between aggressive street and drag settings on street tires (Invos), I run the car on the drag strip several times a month but mostly street driving. Sorry for the long winded post. Thanks!


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2011 IOM SS/RS, M6. Look up our all generation Camaro club website at Heartland Camaros
Gforce Engineering Drivetrain, ECS 1500 Supercharger, TSP Cam, Alky Controls Meth single nozzle. 91 octane, 698 RWHP 625 rwtq. 4200#+, Tuned by Justin "Justune" Kalwei
11.57 @ 126.8 mph with a crappy 1.80 60'.....still learning to drive....M&H DR's and skinnies on 17" Welds.
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