When I swapped over to the BFG KDW's I also made a major pinion angle change to deal with some harmonic vibration issues in a 200 rpm window in 5th gear at 85-90mph. Anyway,that pinion angle change caused me to make some spring collar adjustments. The first time I drove the car it felt like an alien to me. I'd spent so much time dialing in the car and feel with the R888's and that pinion angle and ride height. I'd lost that loving feeling.
Thinking I'm Chad Knaus, I also make some major shock setting changes in anticipation of the different tire compounds. The car felt loose on the street. It wasn't until I autocrossed last weekend that I realized the car was waaaaaaay out of whack. I mean it was out of control. I went from outrunning the ESP champ 2 races in a row to the back of the pack. It was just impossible to drive. Loose big time front and back.
I decided to start from ground zero and borrowed a set of scales.
https://lateral-g.net/forums/show...hlight=payback
After going through all the steps in the subject thread, plus unhooking the sway bars and setting all four tires at equal pressure tonight, I was able to accomplish a 51.7/48.3 front/rear blance and a perfect 50% cross weight balance with me in the drivers seat. The original readings didn't seem that far off but they ended up being off kilter. Think of it as a chair with one leg that's to short. The other three corners were holding up the weight. I ended up dialing an extra 6.75 turns into the LR. When I changed the pinion angle, I had to take a bunch of turns out of the rear coil overs to get the stance right.
Once I had the car set up, I reconnected the sway bar and went back to a neutral shock settings front and back to start from scratch. I also made a rear sway bar adjustment. I took her for a ride tonight and all I can say is WOW!!!!!
This car has NEVER felt this good before on the street. I feel the BFG's have more forward bite than my R888's. The car felt phenomenal. I can't wait to get back on the race track and back in the drivers seat.
All the countless hours and work has paid off.