Am I understanding knock tuning correctly?
04-05-2010, 11:19 AM
#11
Originally Posted by gernby,Apr 5 2010, 02:02 PM
If I had paid for my calibration, I wouldn't be so willing to share it, but I don't mind sharing what I have right now. Send me a PM with your email address, and I'll shoot it over to you.
Nick, just to rule out the valve adjustment as a possible issue, are you sure you are measuring the clearances at the right location? From personal experience, I know that some Honda's have clearances spec'ed between the cam lobe and rocker while others spec the clearance between the adjuster screw and valve. When I first adjusted the valves on my '02 AP1, I measured between the lobe and rocker, and wound up setting my clearances WAY TOO BIG. I lost quite a bit of power and my valves were really noisy. IIRC I gained over 10 ft-lbs on the dyno when I fixed it. If that's not the issue, then I would start getting concerned about a valve problem. Have you done a leak down test?
Nick, just to rule out the valve adjustment as a possible issue, are you sure you are measuring the clearances at the right location? From personal experience, I know that some Honda's have clearances spec'ed between the cam lobe and rocker while others spec the clearance between the adjuster screw and valve. When I first adjusted the valves on my '02 AP1, I measured between the lobe and rocker, and wound up setting my clearances WAY TOO BIG. I lost quite a bit of power and my valves were really noisy. IIRC I gained over 10 ft-lbs on the dyno when I fixed it. If that's not the issue, then I would start getting concerned about a valve problem. Have you done a leak down test?
04-05-2010, 12:22 PM
#14
Originally Posted by TheNick,Apr 5 2010, 02:40 PM
I heard you the first time 
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