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Re: fuel level gauge
Posted: Fri Apr 10, 2015 12:34 am
by typer86
Hi Hondata,
Ok I understand your side.
To fix this request, please edit my attached calibration (it is AFM cal) with your tested values. I will test this on my car and if this is OK, we have a reverence for all new requests for the Europe FN2 supercharged rotrex - and you can close the other threats in the future.
Regards,
Re: fuel level gauge
Posted: Sat Apr 11, 2015 10:28 am
by R-12914
Spunkster wrote:Do not use a race calibration and expect the fuel gauge to read correctly. You should use an AFM calibration and just enable MAP based tuning inside that calibration.
Spunkster, do you mean if we use a MAF based Calibration, and activate the "Use speed/density (MAP) fuel tables" in Flashpro Manager in "Fuel" under "Fuel Table Type" as follows (highlighted in red), by then the RC750cc Injectors are correct fuel/eco flow numbers if we enter 750cc/min in the "Fuel Economy"?:
sdtable.jpg
Hondata wrote:There are three different types of people posting in this forum:
1. Using the race calibration. The fuel consumption is not correct and the fuel gauge is not accurate. This is because it is a race calibration and you should be using the speed density tables under the regular calibration.
2. Using the regular calibration with larger injectors, but has not adjusted the injector size for fuel economy settings.
3. Using the regular calibration with larger injectors, but it still does not work?
I'm not sure about the last category because in our last testing it was working ok, and it is hard to distinguish #3 from #1 and #2 in this thread.
The most People asking about the #3! ;)
Do you have used larger injectors, where it worked?
If yes, what injectors are you useing (brand/size)?
Thanks!
BTW: I am also use a Rotrex supercharged FN2 with larger RC750cc Injectors!
Re: fuel level gauge
Posted: Thu Apr 16, 2015 1:17 am
by R-12914
Please answer Hondata, we need a solution, now!
Thank you!
Re: fuel level gauge
Posted: Tue Apr 21, 2015 9:22 am
by R-12914
Hondata wrote:
Also I would need:
1. the injector type & size
2. the calibration
3. observed fuel economy vs real fuel economy
4. what effect changing the FlashPro setting for fuel economy has over the dash reading
Name: R-12914
Car: Honda Civic TypeR FN2
Supercharger: Rotrex C30-94
+
1.
RC 750cc (SH4-750/SL4-750)
2.
MAF-Calibration:
R-12914_MAF_Rotrex_FN2.fpcal
MAP-Calibration:
R-12914_MAP_Rotrex_FN2.fpcal
3.
Observed fuel economy:
4,4 L/100km
Real economy:
10,82 L/100km
4.
Maximum
+0,2 L/100km
Re: fuel level gauge
Posted: Tue Apr 21, 2015 10:26 am
by typer86
/Signed
I have the same results.
Car: Honda Civic TypeR FN2
Supercharger: Rotrex C30-94
+
1.
RC 750cc (SH4-750/SL4-750)
2.
MAF-Calibration:
FN2_Rotrex_v8_final.fpcal
3.
Observed fuel economy: 3,3L to 4,6 L/100km
Real economy: ~7,5L to 11L/100km (In good days I drive faster - so I need more gas)
4.
I don't know what do you mean?
I hope we get a fixed calibration from hondata.
Re: fuel level gauge
Posted: Tue Apr 21, 2015 12:54 pm
by neoarks
I have same results, more or less the same.
Re: fuel level gauge
Posted: Wed Apr 22, 2015 11:08 am
by Hondata
#4 is what value are you using the 'Fuel flow for fuel economy calc', and this value affect the gauge fuel economy.
eg if you gauge fuel economy is 50% of the actual fuel economy, then double the number in 'Fuel flow for fuel economy calc', and record the results.
If you have large injectors and still have 321 cc in 'Fuel flow for fuel economy calc' then there is no way the gauge is going to be correct. I want to weed out those reports and ensure people have tested that parameter before going further.
Re: fuel level gauge
Posted: Wed Apr 22, 2015 11:28 am
by R-12914
Hondata wrote:#4 is what value are you using the 'Fuel flow for fuel economy calc', and this value affect the gauge fuel economy.
eg if you gauge fuel economy is 50% of the actual fuel economy, then double the number in 'Fuel flow for fuel economy calc', and record the results.
If you have large injectors and still have 321 cc in 'Fuel flow for fuel economy calc' then there is no way the gauge is going to be correct. I want to weed out those reports and ensure people have tested that parameter before going further.
On this values i used
760 cc/min fuel economy:
Observed fuel economy:
4,4 L/100km
Real economy:
10,82 L/100km
Tank fuel:
46,52 Liters
Driven Kilometers:
430 km
On this values i used
321 cc/min fuel economy:
Observed fuel economy:
4,8 L/100km
Real economy:
11,74 L/100km
Tank fuel:
48,87 Liters
Driven Kilometers:
416,3 km
That's exactly what even surprised me so.
It does not seem to work, or to have no influence on!
Note:
In any case always a percentage deviation of ~59% according to the calculated value (BC) vs. real fuel economy!
For example:
310cc / 41% = 7,56 x 100 = 756cc (RC 750cc Injectors and "Fuel flow for fuel economy calc" is 760cc in Flashpro Manager)
Re: fuel level gauge
Posted: Wed Apr 22, 2015 12:17 pm
by typer86
My experience of this setting:
It seems to be that the changes in the flash pro manager will not set correctly in the ecu.
= Any changes, same or minimal adjusted results.
It looks like that this setting will not correctly written to the ecu. So that the calculation with other values will fail.
If I had the possibility I would investigate this issue on a lower software layer.
As user we have no chance to debug the ecu.
... Strange effect...
Re: fuel level gauge
Posted: Wed Apr 22, 2015 4:08 pm
by Hondata
R-12914: Then what happens if you use 50 for the injector size, or 5000? This data will help me.
typer86: It would help to know what values and results you have tried.
Re: fuel level gauge
Posted: Wed Apr 22, 2015 11:24 pm
by R-12914
Hondata wrote:R-12914: Then what happens if you use 50 for the injector size, or 5000? This data will help me.
typer86: It would help to know what values and results you have tried.
Do you mean current injector size Or fuel eco?
If i use 50cc on current injector size, the engine does Not Run/Start!
Re: fuel level gauge
Posted: Thu Apr 23, 2015 6:11 am
by Hondata
"injector size for fuel economy". It does not need to be the same as the fuel injector size. It just adjusts the output to the dash.
Re: fuel level gauge
Posted: Thu Apr 23, 2015 7:18 am
by typer86
R-12914 wrote:Hondata wrote:R-12914: Then what happens if you use 50 for the injector size, or 5000? This data will help me.
typer86: It would help to know what values and results you have tried.
Do you mean current injector size Or fuel eco?
If i use 50cc on current injector size, the engine does Not Run/Start!
Did you tested this setting with "5.000"? :-)
@ Hondata, did you have no FN2 ECU in your development environment to check what happens if you upload our calibration which we provided to you?
-----
My tested values:
321 - same result = 3 L/100KM to 4 L/100KM (in Real: 7 L/100KM until 9 L/100KM)
650 - same result = 3 L/100KM to 4 L/100KM (in Real: 7 L/100KM until 9 L/100KM)
674 - same result = 3 L/100KM to 4 L/100KM (in Real: 7 L/100KM until 9 L/100KM)
750 - same result = 3 L/100KM to 4 L/100KM (in Real: 7 L/100KM until 9 L/100KM)
760 - same result = 3 L/100KM to 4 L/100KM (in Real: 7 L/100KM until 9 L/100KM)
fuel_rotrex_new.PNG
fuel_rotrex_new_2.PNG
Re: fuel level gauge
Posted: Thu Apr 23, 2015 7:57 am
by R-12914
I have testet over ~20 km with "
50cc" in fuel eco:
DSC_0080.JPG
and here over ~20 km with "
5000cc" in fuel eco:
DSC_0081.JPG
Note:
In both cases it is the identical route under similar driving conditions!
There is thus no difference, no matter what value I enter in fuel eco!
I have this apprehension that the value change not anything changes in the ECU!
Re: fuel level gauge
Posted: Fri Apr 24, 2015 2:11 am
by typer86
Now at this point we can say Hondata must troubeshoot and test this setting.
For a new Hondata Flashpro version please add the supported fuel eco values in your documentation:
- Add: Which setting are supported (limits of the values)
- Add: Calculation pattern / matrix to calculate the correct eco value for the dash
=> depending all other settings: Supercharged, Turbocharged, sucking air or pulling air etc.
- Add: The effect if the value will be increased / decreased
I think it can only be fixed with a new flashpro firmware update.
I am satisfied that the new fuel eco value will not set correctly in the ecu or the ecu will not use the new value.