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Old 11-27-2002, 12:55 PM   #17 (permalink)
sharkcohen
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Join Date: Mar 2002
Location: Sunnyvale, CA
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Without an a/f curve, it is hard to judge how the dyno looks. The curves look smooth, and that is a good sign, although increasing the vertical resolution of the graph might have revealed that they were not as smooth as they appear. Lowering vtec allows you to smooth out the transition between the cam lobes, and will not necessarily increase the peak outputs. With the vpac, stock timing is allowed when vtec is activated (the function of the btc is bypassed), making more power on the high cam lobes. However, this isn't exactly safe, which is why I recommend not using the vpac. I'm not sure why I'm making more peak torque than you, it is hard to say since my setup was no where near fully tuned. I might actually end up producing even more. We'll see. What I need to figure out now is why I'm having a problem with my torque curve at the lower rpms.
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