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masterj
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« Reply #120 on: February 24, 2012, 04:49:03 AM »
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question:
Should my maximum value in KFZW1/2 be the same as the max value in KFZWOP/KFMIOP? or does it not really matter?
Are you talking about x-axis? If so, I'd change it to be same as kfzwop... |
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phila_dot
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« Reply #121 on: February 24, 2012, 08:54:42 AM »
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Mmmboost, what platform are you working on?
Many ECU's do not require these axis to be changed at all.
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MmmBoost
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« Reply #122 on: February 24, 2012, 10:04:53 AM »
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Working on an AMB 1.8T with ME7.5
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masterj
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« Reply #123 on: February 24, 2012, 11:42:38 AM »
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Working on an AMB 1.8T with ME7.5
I think that for ME7.5 you'll have to play with these axes... Atleast I had (my car also has 7.5) |
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MmmBoost
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« Reply #124 on: February 24, 2012, 12:25:01 PM »
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Marius I sent you an email. Just a heads up.
Also.....I am running quite a lot of boost on my tune so consequently my "optimal axis" calculator tends to want to skew all of the data to the high side in order to have them spread out evenly. The problem I'm having with this is that the KFZWOP maps basically have no values for light load and cruise. I'm finding that my timing is all over the place and in a lot of cases a lot lower than it should be.
I'm not sure if this is going to work for me running as much boost as I am.
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masterj
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« Reply #125 on: February 25, 2012, 04:42:26 AM »
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Marius I sent you an email. Just a heads up.
Also.....I am running quite a lot of boost on my tune so consequently my "optimal axis" calculator tends to want to skew all of the data to the high side in order to have them spread out evenly. The problem I'm having with this is that the KFZWOP maps basically have no values for light load and cruise. I'm finding that my timing is all over the place and in a lot of cases a lot lower than it should be.
I'm not sure if this is going to work for me running as much boost as I am.
I'll check my mail when I get back home. Could you please post your screenshot of your kfmiop map? |
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MmmBoost
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« Reply #126 on: February 26, 2012, 12:53:49 PM »
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This is what the wizard comes up with for an ideal KFMIOP  |
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MmmBoost
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« Reply #127 on: February 26, 2012, 01:15:10 PM »
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......also, I wanted to point out that there looks like there is an error in the KRKTE calculator...or perhaps I just mis-interpreted it.
I am running ID725 injectors rated at 715cc @ 3bar. When I put in my value for the calculations it seems off so I looked into the calculation.
n-heptane's density is 0.684 g/cc.......so the calculation should be either multiplying be 0.684 or dividing by 1.462 in order to get q-stat for the calculation.
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« Last Edit: February 27, 2012, 04:47:09 PM by MmmBoost »
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masterj
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« Reply #128 on: February 26, 2012, 02:43:53 PM »
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This is what the wizard comes up with for an ideal KFMIOP Did you use KFMIRL adviser or is this based on kfmirl created by you?  |
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masterj
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« Reply #129 on: February 26, 2012, 02:45:52 PM »
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......also, I wanted to point out that there looks like there is an error in the KRKTE calculator...or perhaps I just mis-interpreted it.
I am running ID725 injectors rated at 715cc @ bar. When I put in my value for the calculations it seems off so I looked into the calculation. The value of 1.096 does not look correct to convert volume-flow of the input value to mass flow for heptane that the caluclation requires.
n-heptane's density is 0.684 g/cc.......so the calculation should be either multiplying be 0.684 or dividing by 1.462 in order to get q-stat for the calculation.
krkte calculator gives me 0. 03130 for your injectors, which seems to be OK |
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MmmBoost
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« Reply #130 on: February 26, 2012, 03:27:21 PM »
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Did you use KFMIRL adviser or is this based on kfmirl created by you? This based on the KFMIRL advisor. 2 bar boost Big Turbo 4% agressiveness |
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MmmBoost
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« Reply #131 on: February 26, 2012, 03:30:06 PM »
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krkte calculator gives me 0.03130 for your injectors, which seems to be OK
KRKTE = 50.2624 * Vh / QstatVh: Displacement of a cylinder in dmˆ3 Qstat: Valve correction for petrol/n-Heptane (g/min) density of n-heptane is 0.684g/cc Qstat = 715 cc/min x 0.684 g/cc = 489.06 g/min1.781 dm^3 engine 4 cylindersKRKTE = 50.2624*( 1.781/ 4)/ 489.06 = 0.0456therefore KRKTE = 0.0456 ms/% |
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« Last Edit: February 26, 2012, 06:11:22 PM by MmmBoost »
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masterj
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« Reply #132 on: February 28, 2012, 05:41:22 AM »
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KRKTE = 50.2624 * Vh / Qstat
Vh: Displacement of a cylinder in dmˆ3
Qstat: Valve correction for petrol/n-Heptane (g/min)
density of n-heptane is 0.684g/cc
Qstat = 715 cc/min x 0.684 g/cc = 489.06 g/min
1.781 dm^3 engine
4 cylinders
KRKTE = 50.2624*(1.781/4)/489.06 = 0.0456
therefore KRKTE = 0.0456 ms/%
Yes, you're right. I've eliminated this bug from my wizzard |
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masterj
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« Reply #133 on: February 28, 2012, 05:43:52 AM »
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UPDATED!! KRKTE calculator version now is 1.1.
New features:
* Bugfix, now it should properly calculate KRKTE value
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masterj
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« Reply #134 on: February 28, 2012, 05:48:46 AM »
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This based on the KFMIRL advisor.
2 bar boost
Big Turbo
4% agressiveness
I think this kfmiop should work, but you can try to lower map values by 2 in the 20% load column. But you really have to update KFZWOP/2 maps and other maps that I've said earlier. Otherwise, leave stock x-axis values if you have no access to other maps  |
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