Originally Posted by MoonshineMattK
5 ÷ 4.11 = 1.219

1.219 x 6800 = 8,292


This would be true with a manual trans as long as the clutch wasn't slipping. The problem with the OP setup is that it appears that his torque converter is slipping a ton at the 1/8 mile mark. As far as we can tell from the numbers he posted, his driveshaft is turning about 4400 rpm while his engine is turning 6700 rpm. Could be a bad converter, could be the wrong gears, could be something else.