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Old 01-28-2006, 11:58 PM   #41
fireguy50
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Re: New Binary Editor

Quote:
Originally Posted by Cougar5.0
According to GUFB, it's simply N/V or engine RPM over vehicle speed in 1st gear.
What RPM is the TTNOV calculated at, 2000RPM?
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Old 01-29-2006, 10:13 AM   #42
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Re: New Binary Editor

Quote:
Originally Posted by fireguy50
What RPM is the TTNOV calculated at, 2000RPM?
Well, I calculate it at 2000 RPM for convenience, but it is a constant for each gear.

e.g. 2.73's, 3.35 1st gear ratio, 25.6" diameter tire.

MPH @ 1000RPM - 8.4MPH, 2000RPM - 16.8MPH, 3000RPM - 25.2MPH

N/V @ 2000RPM = 119, @ 2000RPM = 119, @3000RPM = 119

TTNOV is there so that the ECU can determine if the vehicle is in 1st gear (or not). If it is, FN1119 spark reduction is applied.

N/V in second gear is 69.

For this example above, you could set TTNOV at, say 100 & the FN1119 would thus pull timing in first, but not second.

If N > TTNOV * VSBAR (avg speed) then apply FN1119 - 'C', else 'C' = 0

Spark formula;

SAF = Y * ['S' + B - C + FN1133(ECT, LOAD)] +KPS1

Notice how 'C', the torque truncation spark table, FN1119, is subtracted from the calculated spark?

This table will be applied any time TTNOV is set low enough that when multiplied by the rolling average speed of the car, it is smaller than the engine RPM at that speed.
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Old 01-29-2006, 11:55 AM   #43
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Re: New Binary Editor

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Originally Posted by Cougar5.0
I don't suppose you know if TwEECer will write the information not contained in it's editable inputs?
CalCon will write the entire 2000h adress and above to the tweecer. I have changed things like the injector reference, which is not in CalCon, and it worked. I only use the CalCon to open the binary and download it to the tweecer.


sailorbob Nice find!!!
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Old 01-29-2006, 03:12 PM   #44
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Re: New Binary Editor

Quote:
Originally Posted by 86GT
CalCon will write the entire 2000h adress and above to the tweecer. I have changed things like the injector reference, which is not in CalCon, and it worked. I only use the CalCon to open the binary and download it to the tweecer.


sailorbob Nice find!!!
Did you mean CalEdit? Anyway, I spent the time to manually convert my latest tune in to a binary in TunerPro. I burned it on CalEdit and it was a total corruption-fest. Fuel pump would not shut off & even when I started the car with the switch back on the unchanged old tune, much of the data shown in Calcon was garbage. I have to re-burn all of the possible payloads to get the data-collection back to normal. I'm pretty bummed right now as I'm not savvy enough to know what happened. I do know that comparing the binaries in TunerPro show many changes that I never even made - some to "undefined" addresses and some to functions I never ever touched!! Just pasting in my MAF curve over the existing one changes 167 bytes, only 18 of which are directly linked to the MAF change. I'm baffled to say the least.
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Old 01-29-2006, 07:00 PM   #45
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Re: New Binary Editor

Well, I was able to create a tune where I just generated the constants in TunerPro & then copied all the functions from a known good tune in TwEECer. The car started & ran fine but I still can't get Calcon to cooperate - 1/3 of the parameters are garbage now. I'm annoyed at this point.
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Old 01-29-2006, 07:51 PM   #46
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Re: New Binary Editor

Quote:
Originally Posted by Cougar5.0
I don't suppose you know if TwEECer will write the information not contained in it's editable inputs?
Oops I see Clint has already answered this......
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Old 01-29-2006, 09:52 PM   #47
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Re: New Binary Editor

Quote:
Originally Posted by Cougar5.0
Did you mean CalEdit?
Yep!!

Which binary did you start with? are you sure it was the A9L and not the X3Z or vise versa?
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Old 01-29-2006, 10:22 PM   #48
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Re: New Binary Editor

Quote:
Originally Posted by Cougar5.0
Well, I calculate it at 2000 RPM for convenience, but it is a constant for each gear.
When I do the math it varies at different RPM.

4.10's, 2.40 1st gear ratio, 28.88" diameter tire.

Speed calc done with EEC Analyzer 2.7.0.0
1000RPM = 9MPH, 2000RPM = 17MPH, 3000RPM = 26MPH, 4000RPM = 35MPH, 5000RPM = 44MPH

N/V @ 1000RPM = 111, @ 2000RPM = 117, @ 3000RPM = 115, @ 4000RPM = 114
, @ 5000 - 113
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Old 01-29-2006, 10:34 PM   #49
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Re: New Binary Editor

fireguy it could be because of rounding. The difference between the 111 and 117 at 2000 RPM is 1MPH.
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Old 01-29-2006, 11:04 PM   #50
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Arrow Re: New Binary Editor

Quote:
Originally Posted by 86GT
Yep!!

Which binary did you start with? are you sure it was the A9L and not the X3Z or vise versa?
Yeah, it was A9L for sure. All of the data looked as expected in CalEdit - and I have changed many functions/scalars/tables - I verified all the data as I made changes - Caledit occasionally had issues with filling the highest data point if it was also the highest number for the number of that byte (i.e. 65534, 65535 etc...) - strange roundoff issues happening here.

Filling the MAF and tracking the changes, the flow rates below point 16 (15 & under) will show up as a change in 1 byte at an appropriate address and changes to two bytes at very low numbered addresses. For example, if I change Y axis cell #15 to "100", I get address 6E20 filled with 3E (versus 1D with the stock value of "90") but address 003C & 003D are also changed from the original values. Seems odd that 3 bytes are changed for these fields. Change all the X axis cells, you'll get something with a ton of low address cells filled, but most of which are associated with another function all together? Seems messed up to me and my engine surely woudn't run with this so something is wrong...

Note: A/C Time Delay vs TP (FN087) will write to the same addresses as MAF Transfer starting at 0000 - seems odd to me... A/C Flow Max vs RPM is doing the same thing starting at 000C & EGR Desired Drop vs Flow starting at 0014.

For example, change FN087 Y-axis point 6 & do a "difference tool" & then change MAF Function FN036 Y-axis point 16 & watch how the value in address 0000 changes.

Something seems to be misaligned somewhere...
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