here is the speed ratings:http://www.tirerack.com/tires/tiretech/techpage.jsp?techid=35¤tpage=35S 112 mph 180 km/h Family Sedans & VansH 130 mph 210 km/h Sport Sedans & Coupes----------------------------------------------------------So I wouldn't go any faster than 112 mph, even for a little bit. At that speed the tire will become unstable and you really don't want that at 130 mph. Put H on the rear and then goto 130 mph. It will take a long time and a lot of road.
-Eric97 Eclipse RS1/4: 16.15 @ 87.35mph