Power vision counting knocks
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Novice
Joined: May 2025
Posts: 23
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From: Kapuskasing Ontario Canada
Power vision counting knocks
Hey everyone new to the forum trying to gain some info or help with my 06 police road king. Over the winter I did usual maintenance and checked my chain tensioners anywsys found my inner bearing were toast and they are the end of my cams a bit so I replaced all the bearings and cams with TW21s along with S&S adjustable pushrods. Now heres my issue, after doing the cams and pushrods and bearings I bought a power vision tuner and got a tune from dynojet for the parts I have installed, bike idles and runs awesome no complaints at all but with the live data on the PV I notice when accelerating hard/putting some load on the engine itll start to count knock events. I personally dont hear pings or knocks while riding but the pv counts them. The plugs are new and gapped and I only run 91 in the bike. Im looking for thoughts on what might be the cause of the knocks or advice. I know a dyno tune would be my best of the best bet but Im about as north are you can get in Ontario on a main highway and theres no dunks near me lol thanks in advance
Seasoned HDF Member
Joined: Aug 2006
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From: Pennsylvania
Run some auto tune sessions with the tune that was provided, it should adjust the timing and fuel so the knock condition does not occur. Did you make sure to get the correct OEM plugs for the bike?
Seasoned HDF Member
Joined: Dec 2005
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From: poway
Autotune don't retard timing.. OP need to collect data and find where the events are then retard. I'd do 3 degrees in the location and smooth the map.
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Novice
Joined: May 2025
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From: Kapuskasing Ontario Canada
This does make sense to me and I have a tiny bit of knowledge with the dynojet program my only question is how do I determine where or what causes the events? Just by data logging? If youre any good with this kind of thing I would really appreciate some help haha
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Seasoned HDF Member
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From: poway
Add:
I primary tune with TMAX which uses throttle position and RPM to set timing. AFR is done on the fly.
Last edited by Max Headflow; May 26, 2025 at 12:00 AM. Reason: Add:
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Thread Starter
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Novice
Joined: May 2025
Posts: 23
Likes: 1
From: Kapuskasing Ontario Canada
I probably have even less than you but I suspect that you need to set up logging and find when the events occur then go to the map that sets the timing and retard from there. If simply pull the counts from the display you might get close by looking at RPMs on the Tach and approximate throttle position. IIRC the table to change will be MAP vs RPM..
Add:
I primary tune with TMAX which uses throttle position and RPM to set timing. AFR is done on the fly.
Add:
I primary tune with TMAX which uses throttle position and RPM to set timing. AFR is done on the fly.
Stellar HDF Member
Joined: Sep 2007
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From: Vancouver Island B.C.
