IRS initial set up , check for me.

[Bill Elliott]

So as stated in my build thread I am missing the adjustment links for the toe adjustment arms, I figured I could put everything in except those.
Is this a good initial adjustment for the upper control arm?

188053

Also would you say that I can also install the shocks and still not interfere with the installment of the toe adjustment arm last? I also am not torquing anything until all parts are on.

P.S. I am enjoying every minute of this build even with all the set backs or delays, there's always something to do if I am waiting on a part or something. Also all new parts is really nice, no rust, black grease .......

[scrubs]

Keel trucking, I inho. Eventually, a pro alignment will sort things out.

[Jim S]

Bill,

With the Mustang IRS, camber and toe become "interlinked". You can't adjust one without affecting the other. Without your toe arms, how you have the upper arms adjusted doesn't much matter. What you have in the picture is fine for a starting point. If it is way off, the first time you set the car on the ground you will be able to tell if the camber or toe is way off. You may even be able to tell the camber is off when you go to bolt on your wheels and tires the first time. If you are running something like a 17 inch, 315 tire, too much negative camber will cause the tire sidewall to hit the coil over shock.

That said, a picture won't allow anyone to help you out. Camber is meant to be in the -0.5 degree area. One turn of the upper control arm changes camber by 0.9 degrees. That is such a small amount I don't think anyone will be able to tell by looking at the picture.

PM me if you would like me to get you a picture of how I have mine. While not professionally aligned, I used an angle finder to measure camber and the "parallel string" method to set the toe. I have the body on so my pictures won't be as clear as yours but I should be able to get you something you can use for comparison.

Here are the instructions from the manual that explains how much 1 turn affects camber and toe and also demonstrates the interlinked camber / toe aspect I spoke about above:

Alignment specs:
- Camber: -0.5° to -0.75°
- Total Toe: 1/8” Toe in or 0.28° in

- For every full clockwise (screwed in) of the Toe Link, Camber increases by 0.7° (gains positive Camber) and Toe goes in by 0.156”.
- For every full clockwise (screwed in) of the Upper Control Arm, Camber decreases by 0.9° (gains negative camber) and Toe goes in by 0.14”.
- In order to increase negative Camber while maintaining Toe, for every 1 clockwise turn of the upper control arm, the Toe link should be turned counterclockwise 1 full turn. Each full turn of the upper control arm equals -1.6°.
- In order to change Toe while maintaining Camber, for every 1 full turn of the Toe Link, the Upper control arm should be turned in the same direction ¾ turn. Clockwise will Toe in and counterclockwise will Toe out.

[Bill Elliott]

Bill,

With the Mustang IRS, camber and toe become "interlinked". You can't adjust one without affecting the other. Without your toe arms, how you have the upper arms adjusted doesn't much matter. What you have in the picture is fine for a starting point. If it is way off, the first time you set the car on the ground you will be able to tell if the camber or toe is way off. You may even be able to tell the camber is off when you go to bolt on your wheels and tires the first time. If you are running something like a 17 inch, 315 tire, too much negative camber will cause the tire sidewall to hit the coil over shock.

That said, a picture won't allow anyone to help you out. Camber is meant to be in the -0.5 degree area. One turn of the upper control arm changes camber by 0.9 degrees. That is such a small amount I don't think anyone will be able to tell by looking at the picture.

PM me if you would like me to get you a picture of how I have mine. While not professionally aligned, I used an angle finder to measure camber and the "parallel string" method to set the toe. I have the body on so my pictures won't be as clear as yours but I should be able to get you something you can use for comparison.

Here are the instructions from the manual that explains how much 1 turn affects camber and toe and also demonstrates the interlinked camber / toe aspect I spoke about above:

Alignment specs:
- Camber: -0.5° to -0.75°
- Total Toe: 1/8” Toe in or 0.28° in

- For every full clockwise (screwed in) of the Toe Link, Camber increases by 0.7° (gains positive Camber) and Toe goes in by 0.156”.
- For every full clockwise (screwed in) of the Upper Control Arm, Camber decreases by 0.9° (gains negative camber) and Toe goes in by 0.14”.
- In order to increase negative Camber while maintaining Toe, for every 1 clockwise turn of the upper control arm, the Toe link should be turned counterclockwise 1 full turn. Each full turn of the upper control arm equals -1.6°.
- In order to change Toe while maintaining Camber, for every 1 full turn of the Toe Link, the Upper control arm should be turned in the same direction ¾ turn. Clockwise will Toe in and counterclockwise will Toe out.

Thanks for all the details there. Just wanted to make sure that was good enough until I get this on the ground and start playing with the alignment.

[F500guy]

There was a recommended initial setting in the manual, at the picture that shows the assembled control arms that has a length.

[Bill Elliott]

There was a recommended initial setting in the manual, at the picture that shows the assembled control arms that has a length.

oops, forgot that.

[CraigS]

Not knowing where I would end up w/ alignment I assembled mine to give me max adjustment range. I ran the adjuster all the way into the control arm. Then I ran the rod end all the way into the adjuster. Then I put the bolt through the rod end into the spindle. Then I backed the adjuster out until it looked about like yours.