Alignment Specs
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Member
Joined: Sep 2005
Posts: 325
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From: Midwest
Car: 1991 Camaro RS
Engine: 383 LT1
Transmission: T56
Axle/Gears: 4.10
Alignment Specs
I know there are people that have spec sheets for alignment that produce better cornering than stock. Im hoping that somebody can help me out and provide me with some alignment specs. Im looking to carve corners as best as I can with what I have. Ill list my suspension mods below.
Tubular LCA's
Boxed Front A-arms
Boxed Torque Arm
Tubular adjustable panhard
LCA relocation brackets
Wonderbar and Subframe connectors
Full poly bushings
Eibach Pro-kit
Shocks/struts custom valved for Pro-Kit
Spohn Swaybars
Strut Tower Brace
Thanks in advance for any helpful input.
Tubular LCA's
Boxed Front A-arms
Boxed Torque Arm
Tubular adjustable panhard
LCA relocation brackets
Wonderbar and Subframe connectors
Full poly bushings
Eibach Pro-kit
Shocks/struts custom valved for Pro-Kit
Spohn Swaybars
Strut Tower Brace
Thanks in advance for any helpful input.
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Joined: Mar 2001
Posts: 6,577
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From: Portland, OR www.cascadecrew.org
Car: 1990 Camaro RS
Engine: Juiced 5.0 TBI - 300rwhp
Transmission: T5
Axle/Gears: 3.42 Eaton Posi, 10 Bolt
Originally Posted by blyth18md
Camber:
Max out
Caster:
-0.75
Toe:
total = 3/32
Max out
Caster:
-0.75
Toe:
total = 3/32
A good starting point, is usualy in the -1* to -1.5* camber (maybe more, this depends on how much front end roll you have), give the car a lot of caster (go for 5*-6*).
Now the front toe, can do some diffrent things, for a street car, with some spirited weekend driving, go for 1/32" - 1/16" toe in. If you plan to auto-x it (and don't do much normal driving) then a touch of toe-out, will help with initial turn in. Zeroing the toe can work well also, but it can also get a bit twitchy as speed increases.
Alignments take some playing around, and testing to really get right. And a lot of it depends on the roll charactor of the car, and driver prefrence.
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Joined: Sep 2003
Posts: 1,408
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From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
EDIT....NOW I SEE WHAT I DID IT. Couldnt have just put it politely dewey? :-P
I wouldnt go as far as calling it garbage...
Maybe i should have elaborated on the caster continuing on an saying 5-6 degrees. But on my car it hit max at only 3.5*, next time I tear into the front suspension I'll study the strut towers and see how much material I have to grind out.
Perhaps the early cars didnt have provisions for as much caster as the later ones.
I'll agree with you some-what on camber as well though It truly depends on how street driven he intends to keep the car. I personally dont like to go over -.75 on camber for tire wear purposes. Yes If the car never saw the street or was a weekend only car Id consider going up to about -2*
I wouldnt go as far as calling it garbage...
Maybe i should have elaborated on the caster continuing on an saying 5-6 degrees. But on my car it hit max at only 3.5*, next time I tear into the front suspension I'll study the strut towers and see how much material I have to grind out.
Perhaps the early cars didnt have provisions for as much caster as the later ones.
I'll agree with you some-what on camber as well though It truly depends on how street driven he intends to keep the car. I personally dont like to go over -.75 on camber for tire wear purposes. Yes If the car never saw the street or was a weekend only car Id consider going up to about -2*
Supreme Member

Joined: Sep 2003
Posts: 1,408
Likes: 2
From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
.................Caster...............Camber..................Toe .Total
..................(deg)................(deg)......................(in)
...................L....R................L....R.......................
Street .........+4...+4.5........ -.5...-.5..................... 3/32
Hard Street...+5...+5.5........-1.....-1 ..................... 3/32
Drag Racing...+4...+4 ...........0......0...................... 1/32
Road racing...+6...+6.........-1.75...-1.75................
ShortCourse......................................................1/8out
Long Course......................................................1/16in
A table in the Camaro & Firebird Perforamnce Handbook for 3rd Generation cars lists the following recommendations. The figures are credited to Global West Suspension Components and are taken with driver weight included.
..................(deg)................(deg)......................(in)
...................L....R................L....R.......................
Street .........+4...+4.5........ -.5...-.5..................... 3/32
Hard Street...+5...+5.5........-1.....-1 ..................... 3/32
Drag Racing...+4...+4 ...........0......0...................... 1/32
Road racing...+6...+6.........-1.75...-1.75................
ShortCourse......................................................1/8out
Long Course......................................................1/16in
A table in the Camaro & Firebird Perforamnce Handbook for 3rd Generation cars lists the following recommendations. The figures are credited to Global West Suspension Components and are taken with driver weight included.
Thread Starter
Member
Joined: Sep 2005
Posts: 325
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From: Midwest
Car: 1991 Camaro RS
Engine: 383 LT1
Transmission: T56
Axle/Gears: 4.10
Thanks for the help so far. I see that my adjustability is going to be limited with stock camber plates. Who makes adjustable ones? In the mean time do I just adjust it as close to the specs you guys are giving me as possible with the stock plates?
Member
Joined: Jan 2004
Posts: 348
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From: Buffalo, NY
Car: 89 WS6
Engine: 305 TPI
Transmission: T5
Axle/Gears: 10 bolt T2R w/ 3:23
I have Ground Control caster/camber plates and I can get a bunch of extra adjustment with them. stock height I had -2.5 camber and 6 cster. Lowered I have like -3.5 camber need to get rid of some of that.
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Member
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From: Buffalo, NY
Car: 89 WS6
Engine: 305 TPI
Transmission: T5
Axle/Gears: 10 bolt T2R w/ 3:23
weight jackers and springs were ~450.00 and the caster camber plates are 229.00. Delivery tends to take forever with them so keep that in mind. I am talking 10-12 weeks.
Member
Joined: Jan 2004
Posts: 348
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From: Buffalo, NY
Car: 89 WS6
Engine: 305 TPI
Transmission: T5
Axle/Gears: 10 bolt T2R w/ 3:23
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From: IA
Car: 1988 Camaro
Engine: 305ci TBI
Transmission: 700R4
Originally Posted by blyth18md
Maybe i should have elaborated on the caster continuing on an saying 5-6 degrees. But on my car it hit max at only 3.5*
If anyone is curious about the factory alignment specs:
Caster:....4.8* +/- .5*
Camber:...0.3* +/- .5*
Toe:........0.0* +/- .2*
..............0.0" +/- 3/32"
Supreme Member

Joined: Sep 2003
Posts: 1,408
Likes: 2
From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
If that's all the caster you could get then something is wrong with your car. The factory spec for caster is 4.8* +/- .5*.
If anyone is curious about the factory alignment specs:
Caster:....4.8* +/- .5*
Camber:...0.3* +/- .5*
Toe:........0.0* +/- .2*
..............0.0" +/- 3/32"
If anyone is curious about the factory alignment specs:
Caster:....4.8* +/- .5*
Camber:...0.3* +/- .5*
Toe:........0.0* +/- .2*
..............0.0" +/- 3/32"
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Joined: Mar 2006
Posts: 500
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From: Surrey, BC
Car: 1991 Z28
Engine: 305 TPI
Transmission: WC T5
Axle/Gears: 3.73 Posi
Haynes Manual says
1986 and earlier
Caster:....3.0
Camber:...1.00
Toe:........3/64
1987 to 1990
Caster:....4.7
Camber:...0.30
Toe:........0 inch
1991 to 1992
Caster:....4.8
Camber:...0.30
Toe:........0 inch
Caster:....3.0
Camber:...1.00
Toe:........3/64
1987 to 1990
Caster:....4.7
Camber:...0.30
Toe:........0 inch
1991 to 1992
Caster:....4.8
Camber:...0.30
Toe:........0 inch
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From: IA
Car: 1988 Camaro
Engine: 305ci TBI
Transmission: 700R4
I stand corrected. My Hunter specs book only goes back to '87. I just assumed the earlier cars were the same.
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