That calculator is WAY off, even for a nitrous car. I tried it, since on the Probe's quickest 1/8 pass, Donald had to lift about 1000 foot out...it went 4.41 @ 163 to the 1/8 and 6.84 @ 190 to the 1/4. The calculator had it going 7.0 something. Slower than an aborted pass. @@