[Ron Sutton]

Originally Posted by carbuff

I read that as the slugs aren't for tuning then, they are to allow you to reuse the design in various applications. Once you have determined the desired mount height, you choose slugs and never change them again. Am I interpreting that correctly?

Sort of. But a little off track.

I have my design so refined, it only takes small changes ... like 1/16" or 1/8" changes at a pivot point, or ball joint studs .100" taller or shorter ... to achieve any setup I want.

This allows me to optimize a front clip for Aaron Oberle that wants a ride height of 5.5" at the firewall ... and another client that wants a 4" ride height.

This also allows those clients to "change their mind" about their car. Aaron could decide he wants to drop the car 1" all around. If he called & told me, I'd tell him what the ride height change did to the geometry. And if he wanted to optimize the car for that height ... which slugs to change.

Another thing is the car owner's priority. I set up Aaron Oberle's AXT front clip to be optimum for larger autocross courses, like SCCA, CAM, Optima, etc. If Aaron decided he wanted to change & run only GoodGuys AX (tiny courses) ... or change and only run the car on road course track days, with small slug changes we could optimize his car to be the best at whatever he chooses to do.

So it's not that the car owner will never change it. They may, or may not. It simply allows them to optimize their geometry for whatever ride height or types of track they favor.

Byron, as you have one of my Speedtech Extreme front clips ... and that clip is NOT slugged ... so you know there is only one optimum ride height. The front LCA bolts need to be 8-7/16" from the ground. That is where that geometry ROCKS. The priority is AX, but it works well at road courses too. You can raise or lower your car, but the geometry would be less than optimum.