glory to the hypnotoad
Some of you have seen this. It's been discussed in a thread of mine, it needs it's own thread. Here we go...
Yes. There are some folks seeing datalogs where the values are 2 degrees or so below the interpolated values. It's real, it isn't people reading the tables wrong or not understanding the interpolation from other cam angles or columns. It literally is using the wrong ignition values.Isnt it just interpolating the number between the columns?
Maybe Im missing something?
Hondata said:The ECU has many compensations to ignition timing, so the datalogged timing often will not match the calibration.
Hondata said:There are about 40 ignition compensation tables, with many only used under certain cirumstances. If there is significant compensation it is usually from a parameter being well outside normal values - eg people who use a lower temperature thermostat.
[IATRetardLow] ; IAT ºF,Retard 0=86.196875,0 1=130.240625,5.25 2=175.4,10.75 [IATRetardHigh] ; IAT ºF,Retard 0=86.196875,0 1=130.240625,0 2=175.4,0
No. It interpolates the values between the 20 and 30 degree tables. The result of that math at 24 degrees is nearly identical to that of 25 unless there are drastic differences between 20 and 30.On zurmagus datalog, along with the ignition values, if you look at cam and camcmd you will see camcmd running 1 degree below the maps also. That might not sound like much, but if the table calls for let's say 25 degrees, and cam cmd is 24 degrees wouldn't that put you in the 20 degree table instead of the 30 degree table?
You're confused. K-Pro doesn't switch between cam tables like a light switch, kmanager does that to put you on the table contributing the most data. If you're running 20 degrees ignition on the 30 degree table, and 22 degrees ignition on the 20 degree table, at 24, 25, and 26 degrees cam you will be running about 21 degrees ignition. It is quite normal for the cam angle to be slightly off from the camcmd because it's a closed loop oil actuated duty cycle system -- the only way it knows to add more oil to the advance or retard side of the cam gear to correct cam angle is when it goes off a bit and needs to correct it. 25 degrees camcmd will generally be 25 most of the time with peaks and valleys at 24 and 26 degrees. During that time, the values interpolated from the 20 and 30 degree tables are almost identical.Actually, I found some areas on the graph, on high cam, around the 2 second mark, rpm is 6855, cam should be 35 degrees, camcd is 34, and reading from the 30 degree table. It doesn't last long, if you zoom in to where there are only 3 seconds showing in the graph window you can see it, but it is enough to prove my theory, I think.
My car cam angle oscillates from where it should be to -1 degree. which is why instead of running a cam angle like 25 degrees, I run 24. Otherwise the car is bouncing back and forth between the 20 and 30 degree cam tables.
My experience is limited, but I don't think I have seen a cal with the cruising range at 40 degrees cam on the low cam.
ECT is low? I don't know if I have ever seen it above 175 if the car is moving...I looked at zurmagus's kal and kdl. Some observations. ECT is a little low 169.
On the parameters>closed loop tab under settings, Minimum short term fuel adjustment is set at minus 25%, and Maximum short term adjustment is set at 0%. The ecu can't add fuel. So maybe since it can't add fuel, the ecu is retarding ign to keep from knocking, or being too advanced in a lean condition. Although in wot he is running a little rich.