I understand how too much camber can cause instability but you can just reduce it a bit.
Did you install them and not get an alignment?

 

After finally getting the dampers dialed in with my 800 700 setup I decided to go softer which is what I should have done in the first place. Beau at PSI said people end up needing less spring with these and he's right. I've moved down to 650 550 and if I can come by some 600's I'm going to try 600 550.
The car still transitions just as good and possibly better due to increased grip.

 

Im not quite ready to join the discussion as I have limited time on these and I'm sure my findings will change as we tweak our setup over the offseason.

Here are my initial impressions with the setup...

After some extensive talks with different builders and consultants, 50 runs on a practice course, and a frustrating performance at Nationals, we are leaning toward going stiffer on roll rates with our setup. The cars inability to stay composed and apply power was very noticeable compared to the rest of the field at Nationals using various spotters, photos, and video. Right now we are on 700 front 500 rear and getting too much roll. For swaybars we run the Gendron 1.375 hollow on 3/6 and removed the rear swaybar. Turning the shocks up is killing the available grip and not ultimately keeping the car from tossing itself out of shape. I'm having a neutral 3rd party dyno my shocks this fall to give me his take on what will work best with these shocks. No matter what they conclude, it has to work for me. Setups will work differently with with different tires and different tire sizes. With my current setup, the sweet spot for the shocks seem to be in the 13-17 range (from stiff) on compression. For Rebound, the car starts losing grip with anything less than 12 from stiff. The issue appears to be the nose diving from the front of the car on aggressive steering inputs or brake zones. With so much of the car' weight moving towards the front, It delays our ability to jump on the throttle.

So far, Im very impressed with the build quality and sensitivity of these shocks. The cars handling issues are due to balance and motion rather than the shock. Once i get the car balanced right, I will really be asking a lot from these shocks. The ride height is a touch high in the back, so that will be fix #1. Second will be increasing the front spring rate and/or adjusting the swaybar and adding a smaller rear bar.

I will post back here as I get more seat time with this setup.

-Marc

 

I've given you my settings and I hope you choose to try them with an open mind, I think you'll see that you were way underdamped with your original settings.

 

I will certainly try them. In no way would I pretend to know more than you guys, just had to make sure you knew my intentions and goals for my setup. Driving styles and preferences can be drastically different. Hopefully we can achieve some great results with these shocks!

-Marc

 

Hello Marc, just wondering if you've had a chance to try the settings out? I've made some more changes but unfortunately have no idea where I'm at but the car felt great at the last auto x. I'll check later today and post them up

 

Thanks for checking in! I did try the settings you suggested, car still exhibits the same handling issues. This confirms my thoughts that the setup is wrong, not the shocks. I had some other trusted drivers try as well only to agree with me. My first move will be lowering the rear and should be completed next week along with another alignment. The car did respond better with the rebound maxed front and rear with no compression. This obviously is just to cover up the slop in the suspension. Until the rear stays in line with the front, the car will not be able to handle what Im throwing at it. My fastest run was very loose, but was enough to match our local Super Stock times (with really good drivers and prepped cars) I do realize I'm asking a lot from an STR car on street tires, but this is necessary for me to have a shot at Nationals. I'm not very happy with any of the products on my car as for now, but that is not my final decision either. It has to work for me or it isn't worth it.

-Marc

 

You didn't notice less mechanical grip with no compression damping?

 

No. Again, the car is very loose in the rear. Any shock adjustment to balance out this car in current form is covering up a setup flaw. The loose rear is the first point of lost grip no matter what the shock settings are whether entering/exiting a sweeper, slolam, or other transition. With the shocks turned waayy up, the car will initially push, then snap as the front settles. For me, more time spent trying to make this setup work is a lost cause.

-Marc

 

And that's with no rear bar? wow.