What is the correlation between horsepower, 0-60, and quarter mile times & trap speeds?
Courtesy of Steve Cutchen: Here is the curve fit of the Car and Driver performance data (578 points): ET,sec = 3.9 + 5.93 * LN( 0-60,sec ) Avg absolute error (abs(pred ET – act ET)) is .0062 sec This relationship can be combined with the following general correlation: 1/4 ET, sec = 5.825*(wt, lb/road HP)^.3333 Trap speed, MPH = 234*(road HP/wt, lb)^.3333 (Notice that ET = 1363/Trap Speed) For the 96 Maxima 5sp, avg performance seems to be 6.7 and 15.2 15.2 would give a calc 0-60 of 6.72. Pretty good… — For a wt of 3050, an ET of 15.2 => HP = 172 at the road. HP ratio is 172/190 = .905 Seems pretty good… — Shaun’s dyno showed 179. OK, starting with Shaun’s numbers… 179 and 3050 => 15.0 ET and 6.5 0-60 C&D SMX numbers were 6.4 and 15.1… Pretty good! BTW: An ET of 14.8 requires a HP of 186 and give a 0-60 of 6.
