VE Table Help

General Tuning Questions And Discussions
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Holden202T
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Re: VE Table Help

Post by Holden202T »

ok finally got a chance to have a look at this.

ok so I used your ADX and used the Calc VE Table histogram that was already in it.

so from what I can see of the logs, its pretty good on WOT fueling wise but a lot of the cruise and part throttle areas are lean, and you'll probably have a lot of flat spots from it :P

so firstly you get the log played back to plot the histogram data, I used running average to get the numbers you see below.

(Numbers in red are the histrogram data already applied to your VE)
calcveapplied.jpg
calcveapplied.jpg (282.79 KiB) Viewed 4252 times
so depending how you like to do it, you can copy the values over from the histrogram to the VE table, just remember any blanks will zero the cell you copy to, so copy around them or alternatively use the wideband converter spreadsheet to work all that out for you.

so above is the original bin you posted, with the Calc VE histogram data above applied to it. and below is the graph of what it looks like.
calcveapplied-graph.jpg
calcveapplied-graph.jpg (118.1 KiB) Viewed 4252 times
so as you can see there's quite a few spikes in this table, the high ones aren't so worrying, its the ones that go really low that are more of the issue and probably a result of deceleration etc leaning the results out.

so this example below shows on the ve table I have selected two cells that are lower than the ones around them, and they were not hit in the histogram logs.
example-before1.jpg
example-before1.jpg (369.41 KiB) Viewed 4252 times
so what i'd now do here is to increase these values to smooth the cells out, and the below example is after doing this, also I increased the numbers in the 75-90kpa cells to as it will more than likely need richening when you do hit those areas anyways.
example-after1.jpg
example-after1.jpg (387.46 KiB) Viewed 4252 times
so as you can see the whole row is slowly increasing in value, but no real massive spikes in that row .... the results might more than likely mean your tune is a bit rich but its better than being too lean, especially higher up in the revs.

so this same theory needs to be applied in the entire VE table to smooth it all out.

if you can try not to decrease values rather leave them where they are and increase the low ones around it.... obviously though the massively high ones you have in the middle are probably too high from accelerator enrichment etc.

so this one as you can see is the entire table smoothed out (and this was all done manually by going over each cell and increase/decreasing)
CALCEVE-finished1.jpg
CALCEVE-finished1.jpg (358.58 KiB) Viewed 4252 times
I have also used the last decent row you have at about 4000rpm and copied it to the rest of the ones above, again this might be too rich but without data up there you wont know and again its better to be safe (rich) than lean.

really this is just a quick first round adjustment, put it in and go for a drive and see what the wideband says about it. note steady state logging is the best, ie. no sharp throttle applications etc, but if you are at a point where its ok to drive then just drive it like you would day to day and log everywhere you go then apply the changes at the end of each day etc.

depends on your trip, I do 1hr to work and 1hr back each day so its not long to get ALOT of data :)

also note you can play back a log, then open another and play it back and the histrogram will stay after the first one and just keep adding to it, this is a good way to apply 3-4 logs in one go if you havn't had a chance to do it that often. the more data the better!

lastly heres your bin with ve changes as per above. your welcome to use it to compare, even try it in the car if you wish.
25.10.13-modded.bin
(32 KiB) Downloaded 324 times
vc81
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Re: VE Table Help

Post by vc81 »

Thanks heaps for explaining this mate. I'll definitely give this bin a go. How did you get the calcVE histogram, VE table & VE graph showing on the screen at once? I can only get the VE table and VE graph on the screen cause when I open the histogram it goes over the top of the VE table and graph. I also have the same problem when I have the dash displaying as it wants to go over the top of the VE table when it's open.
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Holden202T
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Re: VE Table Help

Post by Holden202T »

you just use the top bar of the histogram window and drag it down so it is smaller, especially in your case it only went to 3000rpm so didn't need to see the bottom of it

I have dual screens too so I normally have the graph on the right screen and the other two on the left

if you have issues seeing them all together try print screen, paste it into mspaint, then its in a separate window!
vc81
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Re: VE Table Help

Post by vc81 »

Ok thanks mate. I would really like to have the dash & ve table displaying at the same time when tuning real time so I can see the cacVE gauge so I can enter that value into the table. At the moment I have to drag the dash down to see the table then I can't see the calcVE gauge. :cry:
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Holden202T
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Re: VE Table Help

Post by Holden202T »

you can create your own dash to display just the stuff you need.

this is what i use on the dyno normally, so you can see the main things you need like the calced VE and wideband/target etc.
dyno dash.jpg
dyno dash.jpg (648.62 KiB) Viewed 4215 times
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Re: VE Table Help

Post by antus »

Yeah laptop screen res is worth its weight in gold when doing this sort of stuff in the car!
Have you read the FAQ? For lots of information and links to significant threads see here: http://pcmhacking.net/forums/viewtopic.php?f=7&t=1396
vc81
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Re: VE Table Help

Post by vc81 »

Holden202T wrote:you can create your own dash to display just the stuff you need.

this is what i use on the dyno normally, so you can see the main things you need like the calced VE and wideband/target etc.
dyno dash.jpg
Excellent! That's exactly what I need! So how do I create my own dash?
Also why do you have your rpm rows inverted ie. 400rpm is at the bottom?

Thanks,
vc81
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Holden202T
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Re: VE Table Help

Post by Holden202T »

its kinda a remnent of the old spreadsheets i used to use for tuning, you can change it in tunerpro settings, but your adx is setup right for the stuff your doing so no need to change it. again, another personal preference.

ok so load your adx, go into the configuration screen (the two gears on the menu buttons or aquisition menu -> edit definition)

you'll most likely have a complete dash in there, so you can either edit it, or best option, add another dash
adx config1.jpg
adx config1.jpg (109.84 KiB) Viewed 4188 times
i've taken two screen shots here to show you all the items in mine and the screen offset locations.... this all depends on your window size but you can tweak it if needed....
adx config2.jpg
adx config2.jpg (107.2 KiB) Viewed 4188 times
note the items are all digital numeric to show the numbers rather than analog gauge display.

once you have all that configured you can either change the item in them in the config or right click on the actually dash item and select it from the list of items.
adx config3.jpg
adx config3.jpg (69.71 KiB) Viewed 4188 times
this list is only small as im using Message6 to get more logging resolution by only logging the stuff i need. (Message 6 is covered in the tuning guides)
vc81
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Re: VE Table Help

Post by vc81 »

Thanks heaps mate. I'll give this a go this arvo. I just don't understand the top, bottom, left & right numbers. What do they represent?
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Jayme
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Re: VE Table Help

Post by Jayme »

they represent the edges of each guage box. in percent.
eg: top 0 left 0 bottom 100 right 50 would make a guage that took up a the whole height but only half the width of the dash window.

notice the left edge of the next box = the right edge of the previous box?
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