Sert Experiment
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Sert Experiment
I am working on a spreadsheet to determine appropriate values in the zero throttle position. The thought is that if I average out the fuel in a particular rpm range across all throttle positions that have been tuned and place that number in zero that there will not be a fuel swing on throttle release. Anyway, whether it works or not will be in the proof on my bike, so far it has rid me of the downshift popping I was receiving.
I was wondering if people who are succesfully running the SERT wouldn't mind cutting/pasting their ve table in the spreadsheet and giving me feedback as to whether what I calculate in the spreadsheet for zero throttle is close to what they have. If you are interested in helping a brother out, PM me and I will send it to you.
I was wondering if people who are succesfully running the SERT wouldn't mind cutting/pasting their ve table in the spreadsheet and giving me feedback as to whether what I calculate in the spreadsheet for zero throttle is close to what they have. If you are interested in helping a brother out, PM me and I will send it to you.
RE: Sert Experiment
I suspect many like me dont know what you are trying to achieve.
If you have the SERT you can look at the various tables yourself. If you dont then I do not understand what you are trying to do. Sorry.
WB
If you have the SERT you can look at the various tables yourself. If you dont then I do not understand what you are trying to do. Sorry.
WB
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RE: Sert Experiment
What I am trying to achieve is to see how close what I calculate in the spreadsheet for the zero column values matches up to maps that were dyno-tuned and run by members here. I do not know how the calibrations from the disk were achieved, but members who have had their bike tuned can add context to a particular calibration.
The zero throttle position does not get tuned, it gets hacked. I don't know how many times I have seen on this board that you should dump fuel in zero throttle to rid decel pop. Apparently this works in some instances. I have found that in my instance, removing fuel works. What works even better is to determine a rpm range that is where the rider generally is before decel to zero throttle and try to match the corresponding cells up to where there is not a wide fuel shift. Once you have dyno values in the cell ranges where a dyno is done, the rest is a math problem not a mechanical one. I am just trying to create some "science" to some of it and I want to validate my thoughts.
So basically, I would like a couple of people to take a look at the spreadsheet I have developed with their custom map and see if what I have calculated is close to what they have.
The zero throttle position does not get tuned, it gets hacked. I don't know how many times I have seen on this board that you should dump fuel in zero throttle to rid decel pop. Apparently this works in some instances. I have found that in my instance, removing fuel works. What works even better is to determine a rpm range that is where the rider generally is before decel to zero throttle and try to match the corresponding cells up to where there is not a wide fuel shift. Once you have dyno values in the cell ranges where a dyno is done, the rest is a math problem not a mechanical one. I am just trying to create some "science" to some of it and I want to validate my thoughts.
So basically, I would like a couple of people to take a look at the spreadsheet I have developed with their custom map and see if what I have calculated is close to what they have.
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Club Member
Joined: Feb 2007
Posts: 1,678
Likes: 3
RE: Sert Experiment
My thought was to smooth the zero throttle position by looking across the range to see what the values were on average and then smoothing it from the bottom of zero up. zero is the only throttle position that goes directly upward.zero is only hit during downshifting and throttle roll off. You will notice that in my zero throttle it does not correllate to an absolute average. Again, I smoothed sideways and upward in zero for a smooth transition while coasting at zero throttle.
[IMG]local://upfiles/24326/DFB1E0B9D1744414AF2A49BFE84A8010.jpg[/IMG]
Just for clarity, you will need a copy of the spreadsheet to run the test. This picture is just how mine looks. I am not looking for a calibration to calibration camparison, rather a comparison of what gets calculated inside the spreadsheet. PM me with an email address and I will forward it on.
As another note, I gave weight4 times to the throttle position/rpm combination of where a rider would be on throttle roll off.
[IMG]local://upfiles/24326/DFB1E0B9D1744414AF2A49BFE84A8010.jpg[/IMG]
Just for clarity, you will need a copy of the spreadsheet to run the test. This picture is just how mine looks. I am not looking for a calibration to calibration camparison, rather a comparison of what gets calculated inside the spreadsheet. PM me with an email address and I will forward it on.
As another note, I gave weight4 times to the throttle position/rpm combination of where a rider would be on throttle roll off.
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