A friend of mine bought a used motor Monday, had it on the dyno Wednesday, it’s in the car at the track today.
Motor dynoed at 728hp.
There is also a slight head wind(8-9mph) at the track today.
The Moroso chart shows 665hp for the speed(144), which is within 10%(8.7%) of the dyno numbers.
It shows 695hp for the ET (9.21) which is within 5%.
Wallace shows:
So if you applied the 1.05 correction factor to the Moroso # 695 X 1.05 = 729 ??
Well, Wallace shows the HP as 686...... so that x 1.05 is 720. Pretty close.
728hp on the dyno x .955 = 695hp.......only 4.5% off.
It just so happens the correction on the dyno was about 5% too.
