Arthur McDonald wrote:
I think Greenville is worth at least one visit next year, finances permitting.
I found the grip at Greenville to be a little better than Rockingham, and the tire wear was about the same - minimal. Lateral grip seemed better than Sanford, but I had much more trouble with wheelspin than at Rockingham or Sanford. We should have swept the start area, which was located in the entrance to the lot. (Of course, by the time Patrice, Frank and I got through sweeping water off the course, we were pooped.)
As Miles noted, the rectangular lot should provide a lot more flexibility in course design than Rockingham.
The only downside to Greenville is that 70 mph zone on US 264. With my new cat-back, my car has a terrible exhaust boom/drone between 1700 rpm (68 mph) and 2500 rpm (99.6 mph), and the return trip about wiped me out. Yes, I have gearing/tire diameter spreadsheet.
Art
Art,
I suspect that, assuming you were on R tires, that part of the start line problem was lack of temp. Also, the start pavement wasn't sealed and the course was. I expected that the rougher looking start pavement would actually have more grip but it didn't work out that way for me. I was surprised about the lateral grip on course, especially since the accel grip seemed so poor through the whole run. Braking grip was good also (after the first couple of runs). FYI for you guys "analyzing" stuff, my car has about 114 flywheel HP and Torque, weighs 1100 lbs, has an open diff, and I ran the course in a 68 mph gear so most corners were exited around 3K. Oh, and its length and width are about the same as a Miata (93 inch wheelbase and 68 inch overall width).