I've had this in the download file for some time. It was a lot of help at the beginning. Read it carefully and compare things like soft bushing material instead of solid rod ends. Long wheelbases like an SLC compared to a short English sport car like an MG. Absolutely optimum setup devoted to the fastest possible lap time versus a very fast streetcar (but NOT a race-only car).
My current setup for my track car is: COTA setup 145 -150 MPH on straights and about 2:35-37 lap times
Ride height F about 3.25 inches R 4 inches both measured in line with the axles on the closest point on the adjacent chassis tubing bottom.
The rear wing set to 8 degrees angle of attack.
springs F 800 R 950
Shocks are the QA-1 standard as supplied by RCR. They are maxed out at the rear on rebound and compression and nearly maxed out at the front. The rear has one click left and the fronts have 3 clicks left on both R and C.
front camber -2.5 degrees
front caster 6 degrees
front toe 1/16 inch as measured at the wheel rim on each side for a total toe in of 1/8 inch.
rear camber -2 degrees
rear caster none
rear toe as close to none as possible with a bias towards about 1/32 on each side for a total of 1/16 inch measured at the wheel rim. This is the limit of my string alignment method.
Tires: all my previous data was gathered on used R7 Hoosiers. I now have a new set of TOYO RR's on the car. F 295/30/18 R 345/30/19
Pressures after hot and stabilized 28 all around.
My suggestions for a street car SLC.
Set ride height to F4 and R 4.5
F600 R 750 springs to start with with no angle of attack on the rear wing
set shocks to the middle of the range and go from there
camber F -.33 to.5 R -.25
caster 6 degrees F rear none
toe F good roads .-25 total, bad roads more towards -3/16 total, rear still try for no toe in but under any condition no (NONE!) toe out using my same method.
tire pressure, try 28 -30 once the tires are warm
That's the best I have on this. The biggest difference for street cars from car to car will be tire selection, your weather conditions, and street pavement conditions. As well as your driving "style"
As the three most important alignment parameters, it's vital to understand what camber, caster and toe is, as well as how it can affect performance.
grassrootsmotorsports.com
How to measure, adjust and alter toe to suit the driver and the style of circuit. The different effects of toe is separated into
suspensionsecrets.co.uk
And this guy has been helpful. He has a few different videos on different subjects, It all sounds right to me.
Here's how I aline my car. pretty much the same stuff but made to bolt onto the car.