Postby Loren » Sat Jul 02, 2016 8:27 pm
It's possible. I'm a very adaptive driver. I do what the car lets me do. Our swaybar mod could have made the bar slightly stiffer. Subtle difference that I'd be hard pressed to notice. I say we give ourselves another event to feel it out. Tampa Bay Downs will tell us if it's understeering too much for sure!
I'm still wondering about our tire pressures. (and we rarely play with them other than to say "yep, there's air in them, and the tires aren't rolling over too much) I know for a fact that Steve checked the tire pressures when we did the skidpad at the last event, though I don't remember what they were. And I know for a fact that we rotated the tires a week later. And I'm reasonably certain that nobody adjusted the tire pressures after that (I didn't, and nobody else claims to remember doing it) What's weird is that when I checked them today, they were at about 40 in the front and 35 in the rear... which seems "okay".
I do remember from brief skidpad testing that the rears are barely getting warm. So, there's little tire pressure increase in the rear due to temperature. But, in the front, they were getting pretty hot, especially the outside (of course). On this course, I know we were scrubbing the tires pretty hard, so the fronts probably got pretty warm, which would raise the front pressures quite a bit.
I sort of remember that our tire pressures were typically pretty even front-rear when WARM before (the only time I think to check them). So, if they were say 38-38 hot, and we know the rears don't get as hot... cold pressures were probably more like 32 front and 35 rear.
So, if we rotated them without adjusting pressures, we'd have had 35 front and 32 rear... rears gain 3 psi, and fronts gain 6... puts us about right where I measured them today.
Bottom line: We might simply need to add a little air to the rear tires! (and bleed a bit from the fronts) Subtle, but we know that stiffening the rear transfers cornering grip to the front. This could be what y'all were feeling.
Moral of the story: Adjust the damned tire pressures when we rotate the tires!
Loren Williams - Loren @ Invisiblesun.org
The "Push Harder, Suck Less" philosophy explained:
Push Harder - Drive as close to the limit of your tires as possible.
Suck Less - Drive something resembling a proper racing line.