The Lingenfelter 2009 ZR1 Corvette has done the ¼ mile run in about 9 seconds. The time was set at December 7, 2009, when it did 9.861 at 144.67mph on its first run! Another run later that day went in 9.813 at 145.74mph.
The Lingenfelter ZR1 in the video has the latest version of LS9 supercharger upgrades including pulley upgrade, overdrive balancer, air intake modifications, intercooler improvements and tuning. The run was done with stock exhaust manifolds and factory cat back exhaust with Mild to Wild Switch.