Quote:
Originally Posted by Hawaiian
We will have to agree to disagree. Here is a dyno of my car, with stock cams... no dip.
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Have you ever used the Dynojet WinPEP 7 software? That's a visual trick of the scaling. The torque goes down and then up between 4750 and 6500--hence, a dip. Or is it a torque "hump" at 6500? It's all in the eye of the beholder.
What about the blue line, between 3250 and 4250? That's a dip too. Or is it a "hump" at 4250? If you could provide the .drf file for the WinPEP7 dyno run, I could make your dip get bigger and smaller in about 5 minutes. You see this all the time on the WRX forums (NASIOC) when a tuner posts how "smooth" the power and torque curve are, by stretching it out like that.
I realize that this sounds like sour grapes, s**tting in your cornflakes, etc. Engines with cam phasing typically have "dips" or "humps", unless you kill the scavenging effects. It's physics. You can move it around a bit, maybe change the shape some. It's unavoidable though.