Originally posted by EPelezo
The graphs are misleading...
I guarantee if you were to stretch the other one out like the top one is than you would come out with a little bit more power with the better intake.
The only way to really compare the two is to make your own graph and plot the points your self or do the tests on the same Dyno with the same type of sheets.
Look at the peak numbers just for example, and note the scale because that is important:
On the first graph, with JBAs, cats, and a PI intake:
443.6 RWHP @ approx. 6300 RPM
409.8 lb-ft @ approx. 5200 RPM
On the second graph, with Bullitt intake, Kooks, and no cats:
approx. 420 RWHP @ approx 6200 RPM
approx. 370 lb-ft @ 5300 RPM
comparing peak numbers, and that is showing a peak to peak loss of ~25 RWHP and ~40 ft-lb.
Also of note is that the first graph shows the car making 370 ft-lb or more from ~3800-6300 RPM, and that is the peak
of the second run.