Over the last couple of race meetings, I have had trouble getting the car to work on small tyres and a low ride height, so I took to our local track today to do some testing of my theory.
What was happening was that when running the car with a low ride height (5mm front and 5.5 mm rear) I had problems with the rear of the car getting loose both on turn in and under power during transitions (esses).
Previously I have been running 0mm droop front and +2mm droop rear.
Without changing anything else on the car, I set the rear droop to +4 and immediately, the rear of the car was planted and I needed more steering
This proved my theory that when running low ride heights, the droop needs to be compensated for. This may not be news to some of the pro's but I thought I'd share it anyway.
In the end, I ran the rear droop at +3 and the front at +1, 42 shore rear tyres and 40 shore fronts (more steering and now they wear evenly!) with 40wt oil in the rear shocks and 50wt oil in the fronts both sets with the stock pistons. I also changed the rear diff oil to 50,000 wt oil while running a one way in the front.
The car is now so easy to drive fast and place it where you want it in the corners. The track is a purpose built facility with a hotmix surface with no traction additives. It was also pretty dusty since we haven't had a race meeting for more than 3 weeks.
I think I need more power now as the chassis is balanced so nicely