javigsi
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« on: June 17, 2013, 02:28:27 AM »
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I'm trying to get working right Audi RS4 4.2 injectors in 2.0TFSI with GT30 ,but how to can calculate KRKTE ?
regards
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SRT
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« Reply #1 on: June 17, 2013, 02:43:32 AM »
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krkAte calculation is the same than ME7 but I don't think theRS4 injectors are bigger
RS4 BNS ~1093cc/min @100bar
S3 CDLA ~1202cc/min @100bar
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majorahole
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« Reply #3 on: June 17, 2013, 06:05:01 AM »
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krkAte calculation is the same than ME7 but I don't think theRS4 injectors are bigger
RS4 BNS ~1093cc/min @100bar
S3 CDLA ~1202cc/min @100bar
pretty sure that's wrong... judging by everything ive heard |
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SRT
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« Reply #4 on: June 17, 2013, 07:41:18 AM »
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pretty sure that's wrong...
Maybe it's wrong, but where is the mistake in my calculation: Qstat [cc/min] = (69,81 * Vh_zyl [dmˆ3] ) / KRKATE |
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prj
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« Reply #5 on: June 17, 2013, 07:43:56 AM »
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The OP never said anything about S3 injectors, did he?
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majorahole
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« Reply #6 on: June 17, 2013, 08:06:10 AM »
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Maybe it's wrong, but where is the mistake in my calculation:
Qstat [cc/min] = (69,81 * Vh_zyl [dmˆ3] ) / KRKATE
not that info, that s3 are bigger. i havent tested myself, but i guess at normal pressures the rs4 flow more |
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javigsi
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« Reply #7 on: June 17, 2013, 08:22:00 AM »
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this is the problem I have now, to put the fuel injectors RS4 and fuel Trym tells me that the system is too rich , -6.6 and -18 ago on channel 32 .
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ddillenger
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« Reply #8 on: June 17, 2013, 08:23:26 AM »
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What's the part number of your injectors?
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Please, ask all questions on the forums! Doing so will ensure the next person with the same issue gets the opportunity to learn from your experience!
Email/Google chat:
DDillenger84(at)gmail(dot)com
Email>PM
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javigsi
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« Reply #9 on: June 17, 2013, 08:34:23 AM »
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the part number is delete for APR  krkte is now -13% from orig and chanel 32 is -6,6 / -17 I understand nothing . i have A2L MED9.1 but not find TVUB ,I'm blind or these inyectors not have this voltage map .? regards |
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SRT
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« Reply #10 on: June 17, 2013, 09:14:09 AM »
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The OP never said anything about S3 injectors, did he?
That is right but AXX injectors have ~1039cc @ 100bar and it would not make sense to swap them for RS4 injectors. |
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SRT
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« Reply #11 on: June 17, 2013, 09:19:05 AM »
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krkte is now -13% from orig and chanel 32 is -6,6 / -17 I understand nothing .
If you are using BDM you may have to delete old adaption. i have A2L MED9.1 but not find TVUB ,I'm blind or these inyectors not have this voltage map .?
There is no TVUB in MED9, I guess because injectors are not wired to UB. |
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javigsi
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« Reply #12 on: June 17, 2013, 09:54:15 AM »
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i used CMD flash and delete all errors , but he fast is in -6 -10 ..  . it is interesting to know new injectors flow for made fine regulation . thanks |
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99pwr
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« Reply #13 on: June 17, 2013, 10:18:24 AM »
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RS4 injectors is aprox 13% bigger than S3 injectors. I have few cars with this mods.
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hammersword
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Revlimit ECU tuning
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« Reply #14 on: June 18, 2013, 02:34:14 PM »
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me too I have done many TFSi with RS4s.
It is not needed only the KRKATE for correct calibrating the RS4 but you have to set correctly the injectors lag and you have to fine tune
the injection angle elsewhere you will have a diesel style car (black smoke from the tail pipe)
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