I just got 2 interceptor aeroforce guages and they have a performance mode where 1/4 / 1/8 mile / 0-60mph can be read. I went from dig and smoked the tires some but managed to pull out a 13.6 1/4 at 93mph; 8.66 1/8 at 83mph; and 5.4 second 0-60mph. Since these guages read from the computer to get mph and distance how accurate are they? I guess if I spun the tires pretty bad and didnt move to far until I hooked it would start calculating distance any ways. My tune is still not finished due to a bad o2 at the time and I need to ditch these heavy 20's and the flowmaster and I should be doing a little better.

 

The performance calculators on those gauges is useless. Too many variables from wheelspin to improper speedo calibration will skew the results. I like the gauges though. I put them on my gto so I could use the analog inputs for boost, fuel pressure, and wideband afr.