C5 Wheel alignment/ balance figures?

[vette78]

Excessive shake through the steering wheel at approx 80 makes me think that perhaps my front wheels are unbalanced and potentially misaligned. I naively popped into the local Kwik Fit to get them checked but they of course have no information for a Corvette and sent me packing.

I therefore plan to get them checked at another garage, but as i'm sure they won't know the figures I'm hoping someone on here does!

I think I need to know things like toe-in settings etc before they can set it all up for me. Much appreciated.

Chris

[Corsette]

Try this. Sorry about the format. There are four options for each alignment (by year) corresponding to the driving method. Should be on this site somewhere: www.vbandp.com/default.aspx

Recommended Alignment Specs.
These may be Different from factory Specs.
Front 63 - 82 Corvette
Daily Driver
Advanced Street
Autocross Baseline
Track Baseline

Toe
1/32" in
0"
3/16 out
0-1/16 out

Camber
0° neg
.25° neg
1.5-2° neg
1-2° neg

Caster
2.75° pos
2.75° pos
2.75° pos
2.75° pos

Caster
(w offset a-arms)
4.75° pos
4.75° pos
4-4.75° pos
4-4.75° pos

Rear 63 - 82 Corvette
Daily Driver
Advanced Street
Autocross Baseline
Track Baseline

Toe
1/8" in
1/8" in
1/8"-1/4" in
1/8"-1/4" in

Camber
0° neg
.50° neg
.75-1.5° neg
.75-1.5° neg

Front 84 - 96 Corvette
Daily Driver
Advanced Street
Autocross Baseline
Track Baseline

Toe
1/32" in
0"
3/16" out
0-1/16" out

Camber
0° neg
.25° neg
1.5-3° neg
1-3° neg

Caster
5-7° pos
5-7° pos
4-5° pos
4-7° pos

Rear 84 - 96 Corvette
Daily Driver
Advanced Street
Autocross Baseline
Track Baseline

Toe
1/8" in
1/8" in
1/16" in
1/8" in

Camber
0°
.50° neg
.75-2.5° neg
.75-2.5° neg

Front 97-02 C-5 Corvette Daily Driver Advanced Street Autocross Baseline Track Baseline
Toe
1/32" in 0" to 1/32" in 1/16" in 1/8"out-1/32" in
Camber
0° 1/4° neg 1/2° neg 1/2° neg
Caster
6-7° pos 6-7° pos 4-6° pos 4-6° pos
Rear 97-02 C-5 Corvette Daily Driver Advanced Street Autocross Baseline Track Baseline
Toe
1/16" in 1/16" in 1/16"-1/4" in 1/8"- 1/4"in
Camber
0° 1/2° neg 1/4 - 2° neg 3/4 - 2° neg
These wheel alignments are not factory standards. These are derived from tests, professional drivers and chassis engineers.
You should always consider driver, fuel and cargo weights when your Corvette is aligned. Please note that these specs are symmetrical. For example, when we recommend 1/8" toe in, that indicates 1/16" on each front wheel for a total of 1/8" total toe in.
Daily Driver - These specs are designed to minimize tire wear and dynamic forces on front end parts. Driver effort is minimum, the car will steer very "light" and may wander or be "darty" on road with wear ruts. If you are uncomfortable with this feeling, toe the car in up to a maximum of 1/8" total toe in.

Advanced Street - These specs are designed to give an even quicker steering response with minimum tire wear. If the car is "darty", toe the car in. By toeing in, you may loose some turn-in qualities gained by the initial specs.

Autocross - These specs are a good baseline to start from. The driver must take into consideration that size, compound and condition of the tires. The chassis is affected by the valve package in the shocks, spring rates and sway bars. The Autocross course design and the condition of the surface will also have a bearing. These specs do not work and are not recommended for street use because of adverse tire wear. The car will act "nervous" when ever changing street surface.

Track - These specs are by far just a baseline. Those of you who race know alignment specs will change based upon weather, track and unique setup. These specs can also change on each corner of the car and driver to driver.

[ZR1cliff]

Thanks for that corsette i need to readjust my suspension.

[vette78]

Many thanks Corsette - i'll take those along to the alignment people on Friday and sort it out. Think i'll go for fast road use as I'm heading to the Goodwood FOS this weekend!