earnhardt12

I have recently upgraded my 98 Trans Am engine with LS6 cylinder heads, new cam, intake, headers, off road y-pipe and 4.10 gears has been tuned by pcm of nc, and I decided since no tracks are open this time of year where I'm located to use the performance tester on my Bully Dog Watch Dog and was wondering how accurate it actually is because it said on one run that my time was 7.7 in the 1/8th @ 83mph but on another run it said 8.1 @ 88mph I understand wheel spin can factor in but both runs had the same amount of wheel spin. any info would be appreciated

HCI2000SS

iTrader: (2)

That doesn't sound right at all