I set up my four wheel align ment for next week. I had a quea

[scottj]

Corner weight changes don't affect alignment. Alignment changes can affect corner weights. I do the alignment first.

[patrickt]

Originally Posted by scottj

Corner weight changes don't affect alignment. Alignment changes can affect corner weights. I do the alignment first.

I disagree. Corner weighting changes your ride heights at each corner of the vehicle, which will change your camber and toe. You should set your corner weights first. Now there's bound to be a technical article on the hot rodding sites that specifically address this question.

[scottj]

"Technical article on the Hot Rodding sites" That's where you would look for tech advise?

If you're changing ride heights when adjusting corner weights then you're doing it wrong. Ride height is set 1st, then alignment, then scaling. Ride height is maintained through out and doesn't change when scaling.

I would suggest Longacre or Intercomp for tech advise on the correct procedure.

Here: Under "Tech Articles" from Longacre's site- Scaling made simple
http://www.longacreracing.com/articles/art.asp?ARTID=1

[patrickt]

Originally Posted by scottj

"Technical article on the Hot Rodding sites" That's where you would look for tech advise?

I'm thinking something more like Circle Track magazine or the like. I read your link though, but it didn't address which to do first. I did find a few threads where "non-authoritative" posts supported the corner-weight first procedure, but maybe they (and I) are wrong. Think you can find something out there that says you should do the alignment first and that was actually written by somebody that should know what they're saying?

[scottj]

Yes, paragraph two from the link I posted:

"Before you begin the scaling process you should make sure that the car is race ready. Fluid levels need to be topped off, stagger & tire pressure set, ride heights adjusted, Caster adjusted, Camber set, rear end square and the toe checked. You will also need to take advantage of the maximum left side weight and check to see if your total weight is within the rules and the front to rear balance is where you and your chassis builder want it. Emphasis should be placed on being race ready before you begin the final scaling procedure as all of these factors will have an effect on the end result."

Oh... by the way... I am an authority

[patrickt]

Originally Posted by scottj

Yes, paragraph two from the link I posted:

"Before you begin the scaling process you should make sure that the car is race ready. Fluid levels need to be topped off, stagger & tire pressure set, ride heights adjusted, Caster adjusted, Camber set, rear end square and the toe checked. You will also need to take advantage of the maximum left side weight and check to see if your total weight is within the rules and the front to rear balance is where you and your chassis builder want it. Emphasis should be placed on being race ready before you begin the final scaling procedure as all of these factors will have an effect on the end result."

Oh... by the way... I am an authority

Yeah I saw that, but I read it to mean that you still had to do your alignment after the corner weights. Now as an example of the opposite treatment, these guys do the corner weights first and then do the aligment. http://www.moose-motorsport.co.uk/su...on_tuning.html Now to be honest, I've found sports car threads for vettes, Lotus, and others where posts say exactly the opposite (going in both directions), so it would be nice to have something even more specific.

[scottj]

Originally Posted by patrickt

Yeah I saw that, but I read it to mean that you still had to do your alignment after the corner weights. Now as an example of the opposite treatment, these guys do the corner weights first and then do the aligment. http://www.moose-motorsport.co.uk/su...on_tuning.html Now to be honest, I've found sports car threads for vettes, Lotus, and others where posts say exactly the opposite (going in both directions), so it would be nice to have something even more specific.

Sorry, that's about as much effort I'm going to put into researching a procedure I've done about 1000 times. The only real proof anyway would be to buy your own scales and alignment equipment and see it for yourself... like I've done.

[scottj]

Originally Posted by patrickt

I'm thinking something more like Circle Track magazine

Here's the Circle Track article you requested.

http://www.circletrack.com/chassiste...ght/index.html