Suspension and Chassis Questions about your suspension? Need chassis advice?

What are the "ideal" alignment specs?

Thread Tools
 
Search this Thread
 
Old Jan 14, 2001 | 08:22 AM
  #1  
GMTech's Avatar
Thread Starter
Supreme Member
 
Joined: Jul 1999
Posts: 2,767
Likes: 2
From: Vereinigten Staaten
Car: Take
Engine: Your
Transmission: Pick
What are the "ideal" alignment specs?

I know what the "factory" specs are, but what are the "ideal" alignment specs? I would think that the Camber and Toe wouldn't change much since they are wear angles, but what about Caster. The factory calls for 4.8*, anybody running more, less?

------------------
If you live in Southeastern US, check us out!
South East Thirdgen


ASE Master Tech + L1
Savannah, GA

'87 Trans Am
S/D TPI retrofit including functional PassKey, 22# injectors,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
SSM SFC, KYB Shocks, Boxed LCAs, Wonder Bar,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
-->14.97 @ 94.9 MPH<--

'97 Bonneville SSE
Reply
Old Jan 14, 2001 | 08:33 AM
  #2  
ede's Avatar
ede
TGO Supporter
 
Joined: Aug 1999
Posts: 14,811
Likes: 1
From: Jackson County
i asked a week or so ago about specs for a drag car and never got a response, so i'll ask again here with you and maybe get something. car doesn't pull the front end if that matters.

------------------
ICON Motorsports
1st & 3rd
Reply
Old Jan 14, 2001 | 10:12 AM
  #3  
CamaroMike's Avatar
Senior Member
 
Joined: Nov 1999
Posts: 803
Likes: 0
From: Omaha, NE
My Camaro is running
Toe: 0,0 for straight line performance
Toe In is for high speed and Toe Out is for autocross (low speed). At high speed tires will tend to Toe Out so point the tires in (Toe In) and at low speed pointing the tires out will take slop out of the steering. Toe at 0,0 will provide a best of both worlds and help 1/4 mile performace.
Camber: -1,-1 if possible. Thats what I run with my J&M caster/camber plates. More negative Camber will cause excessive wear and reduce 1/4 mile performance. With stock upper mounts run as much equal negative camber as possible. It will usually be around -.25,-.25. Just keep them equal! Caster on my Camaro is at 6 degrees equal on either side for very high speed stability (140+) but it is an arm wrestler with my Z28 fast ratio box. On a stock upper mount I would run 5,5. Actually on your Camaro you could run 5,5.5 to fight road crown (tendancy to drift right because of road slope) but on a flat surface with big tires it might pull left. I would go 5,5 on your car.

So recap-
Toe: 0,0
Camber -.25,-.25 with stock upper mounts
Caster 5,5 with stock upper mounts
All numbers are LEFT,RIGHT and in degrees.

BTW GMTech, how come i'm not on your web page yet? You know, Southeast Thirdgen.org.



------------------
84 Camaro ZZ4 with HOT cam. 1.88 60' (12.98 @ 105MPH E.T.)
Other Mods: You name it and I have probably changed it.

2001 Dodge Ram Quad Cab 5.9L 4*2

ASE Certified Auto Tech
LIVE AND DIE BY THE ALMIGHTY BOWTIE!
Reply
Old Jan 14, 2001 | 10:12 AM
  #4  
GMTech's Avatar
Thread Starter
Supreme Member
 
Joined: Jul 1999
Posts: 2,767
Likes: 2
From: Vereinigten Staaten
Car: Take
Engine: Your
Transmission: Pick
The amount of caster isn't what makes it pull, its the Cross Caster. You should have at least .5* more caster on the right to prevent pull on passenger cars.

------------------
If you live in Southeastern US, check us out!
South East Thirdgen


ASE Master Tech + L1
Savannah, GA

'87 Trans Am
S/D TPI retrofit including functional PassKey, 22# injectors,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
SSM SFC, KYB Shocks, Boxed LCAs, Wonder Bar,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
-->14.97 @ 94.9 MPH<--

'97 Bonneville SSE
Reply
Old Jan 14, 2001 | 10:17 AM
  #5  
GMTech's Avatar
Thread Starter
Supreme Member
 
Joined: Jul 1999
Posts: 2,767
Likes: 2
From: Vereinigten Staaten
Car: Take
Engine: Your
Transmission: Pick
CamaroMike, its funny you mention that, because today is the scheduled update, and your info was added, so as soon as I upload it to the server via my FTP program, your there.

As for 5* caster, can you run that w/o camber/caster plates? because I did an aligmnet yesterday on an '85? camaro and the caster maxed out a 4*. I don't want to have to grind the slots out longer if I don't have to.

------------------
If you live in Southeastern US, check us out!
South East Thirdgen


ASE Master Tech + L1
Savannah, GA

'87 Trans Am
S/D TPI retrofit including functional PassKey, 22# injectors,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
SSM SFC, KYB Shocks, Boxed LCAs, Wonder Bar,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
-->14.97 @ 94.9 MPH<--

'97 Bonneville SSE
Reply
Old Jan 14, 2001 | 11:09 AM
  #6  
CamaroMike's Avatar
Senior Member
 
Joined: Nov 1999
Posts: 803
Likes: 0
From: Omaha, NE
Different year Camaro's have different allowances for caster and camber. An 85 Camaro Z28 will max out at 4 degrees positive caster and an 85 regular SC will max out at 3.5 degrees positive and an 85 Firebird will max out at 3 5/16" degrees positive. The 87 and newer cars will go to 5.5 degrees positive caster and the only cars that will go negative camber are the 89 and newer Camaro's. Now keep in mind that if you get aftermarket caster/camber plates then you can expand all your specs for each car about 3 degrees caster and 2 degrees camber either way. So older cars can run newer specs and newer cars can run psycho angles. I have a book that lists all alignment angles. It's called Camaro and Firebird Performance Handbook by Peter C. Sessler ISBN #0-87938-711-4. Get that book and look in the very back for alignment specs. Let me know what you think.

------------------
84 Camaro ZZ4 with HOT cam. 1.88 60' (12.98 @ 105MPH E.T.)
Other Mods: You name it and I have probably changed it.

2001 Dodge Ram Quad Cab 5.9L 4*2

ASE Certified Auto Tech
LIVE AND DIE BY THE ALMIGHTY BOWTIE!

[This message has been edited by CamaroMike (edited January 14, 2001).]
Reply
Old Jan 14, 2001 | 01:21 PM
  #7  
GMTech's Avatar
Thread Starter
Supreme Member
 
Joined: Jul 1999
Posts: 2,767
Likes: 2
From: Vereinigten Staaten
Car: Take
Engine: Your
Transmission: Pick
That explains it then. The subject is an 85 sport coupe and it has Jamex lowering springs, 16" IROC rims, Hotchkis SFC, trailing arms, 36mm sway bar, wonder bar, poly bushings everywhere, basicly, the best you can get on a F-bod suspension, well, we figured since we just about replicated a typical IROC suspension (with a few extra goodies) then we should set the alignment to IROC specs. When I first checked the alignment, the caster was 2* and I maxed both sides out at 4*.

Stock IROC setting is 4.8* on both sides. I want to set them to:
4.8 left and 5.3 right, so I guess I have some grinding to do. Thanks.

P.S. I uploaded all the info to the server, so you and about 20 other people have been added, thanks for registering, make sure you stop by the message board when you get a chance.

------------------
If you live in Southeastern US, check us out!
South East Thirdgen


ASE Master Tech + L1
Savannah, GA

'87 Trans Am
S/D TPI retrofit including functional PassKey, 22# injectors,
JET AFPR, Ported Plenum,
TB Coolant Bypass, Custom Cold Air,
SSM SFC, KYB Shocks, Boxed LCAs, Wonder Bar,
8mm Accel wires,
Flowmaster Exhaust,
16" GTA rims,
Corvette Servo,
-->14.97 @ 94.9 MPH<--

'97 Bonneville SSE
Reply
Old Jan 14, 2001 | 06:35 PM
  #8  
CamaroMike's Avatar
Senior Member
 
Joined: Nov 1999
Posts: 803
Likes: 0
From: Omaha, NE
No Prob!


------------------
84 Camaro ZZ4 with HOT cam. 1.88 60' (12.98 @ 105MPH E.T.)
Other Mods: You name it and I have probably changed it.

2001 Dodge Ram Quad Cab 5.9L 4*2

ASE Certified Auto Tech
LIVE AND DIE BY THE ALMIGHTY BOWTIE!
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
InfernalVortex
Electronics
10
Apr 20, 2021 11:31 AM
Ed1LE
Suspension and Chassis
8
Sep 30, 2018 09:14 AM
Cam-aro
Camaros Wanted
2
Nov 12, 2015 03:35 PM
gord327
Transmissions and Drivetrain
19
Oct 3, 2015 01:25 PM
meeklay812
Camaros for Sale
1
Oct 1, 2015 03:46 PM




All times are GMT -5. The time now is 05:33 PM.