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After getting my side skirts installed I decided what the hell ill get it dyno'ed today since ive never done it. After strapping her down the guys asked me what I expected and I said probably 140hp. The first run it hits 140.7hp. Surprised everyone, they were expecting around 120hp because I just have an intake and exhaust. The second dyno goes by perfectly and it hits 145hp. Im really happy with these numbers considering its an auto. I tried searching but couldnt find any other auto dyno sheets. Is this around what others have gotten with just an intake and exhaust. (Done on a Mustang dyno btw)
(Note: I am about 1 mile above sea-level here in Colorado, not sure if that makes a difference.)
Thats cool but likely innaccurate. My highest was 139.4 I believe on a dynojet? That was with intake, header, and pulley. I figure Im at around 130 or so right now since I no longer have the header or intake. I have an exhaust though and still my pulley. I'd like to get a nitrous run.
Your height above sea level ought not matter. Only the barometric pressure, which is a correction factor fed into the dyno software. One of the Dezod or ZPI guys (can't remember who exactly) had a great forum post about the difficulty of dyno techniques. Under-drive pulleys OUGHT NOT make a difference in measured power, but they do on Dynojets and others that use the basic principle of F=MA. Figuring out changes in "F" by measuring the derivative of "A" has its issues. However, I say if that's all you've got handy, it's better (and more fun) than nothing. :-D
I refuse to take the advice of anyone who can't construct a proper sentence.