It's near tire buying time and I'm not sure if I want to run DR's on the street again - seemed like a waste of great track tires. I want the best launch I can get on a regular street tire.
Post your best 60' on anything other than DR's or slicks and what brand/model tire it was.
1.9x back in the day with 274/40/17 BFG comp T/A ZR. http://store.summitracing.com/default.asp?target=partdetail.asp?part=BFG-13550 But this was with a 13.xx 5spd 95gt, stock shocks and struts, sway bar on, eibach Pro Kit springs and control arms. I will say that I was extreamly impressed with these tires.. they hooked, they handled, were great in the rain, I wouldn't bat and eye at buying them again personally..
1.94 best with 245x50x16 bridgestone potenza re910's on 100% bone stock susp. with close to or over 100,000 miles. 5spd, pullies, K&N, 3.73's, 14*, MSD digital6+, 125 shot of n2o from a wet kit (compucar kit) that run was a tire spinning 13.1 @ 107. backed it up hotlapping it to a 2.0 60ft, 13.2 @107.
I cut 2.0-2.1 almost all the time with those tires.
2.10 on some BALD 255 Sumitomo's and stock suspension. I haven't ran with the 315's or my control arms. I'm getting some D/R's when these go. Probably some Nitto's since they have decent treadlife.
2.167 on 275/40 Cooper Cobras. These numbers are a result of no tire spin, as are all of my launches (auto with decent tires = no tire spin at track). I only spun the tires once and it was the time I backed into the water box. Otherwise, I think these tires get pretty good traction with higher RPM's and more power. If/when I get a higher stall, I hope to turn closer to 1.9xx like a large majority of the people on here.
From reading all of these numbers (a crappy 2.2 for me), it would seem that a decent 60ft is more up to the driver's skill and less to the specific tire.