Trying to launch the more powerful SRT8 was not an easy task. The 6.1 actually delivered its best e.t. during its third hot-lap. The Daytona did its best on its second hot-lap. These new Hemi's are the only motors we've ever tested that run stronger on a hot-lap. Remember, a cooler-than-stock thermostat (160- or 180-degree) is not recommended for any bone stock third-gen Hemi. Dyno and strip testing proves it.