K92
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« on: December 04, 2019, 03:17:01 AM »
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Hello
I bought car named in subject. I converted it to ME7.5 passat ecu 4B0906018Cg.
I am using 4B0906018CH file with robs kp file.
Injectors: 0280156065 263.3cc at 3Bar. With Passat fuelrail there was 4Bar FPR so 304cc ?
Exhaust: Catless 3" DP
Intake: Cold air intake
Should i change KRKTE to 0.10761 as all the stock files seem to be 0.10478 ?
My goal is to safely tune car for stock rods etc and learn in process.
So far i have modified LDRXN and LAMFA. Made first log and seems that Actual boost is higher than Requested boost, what could be the problem ?
Maybe someone could suggest LDRXN for starter. At Tuning wiki i was reading that i should use RS4 B5 maps. But LDRXN seems a bit overkill .
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fknbrkn
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mk4 1.8T AUM
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« Reply #1 on: December 04, 2019, 06:08:03 AM »
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You should tweak pid maps aswell
It depends on turbo youve used but usually it's pretty tricky job for a novice
Start with kfldimx so maybe it's enough for a some point
And get a bigger injectors
386 from tt225 enough if it's non returnless fuel system
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adam-
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« Reply #2 on: December 04, 2019, 06:57:43 AM »
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Have you actually used a 025 though?
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K92
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« Reply #3 on: December 04, 2019, 07:03:16 AM »
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I have fuel pressure regulator on fuel rail. So it is non returnless ?
Turbo which car came with is k04-025. As i understand there is no point to modify with these injectors as they cap out ?
I will try to log them today. Is the variable for injectors ti_b1 ?
K04-025 is still on the car.
And thank You for helping.
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K92
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« Reply #4 on: December 04, 2019, 01:59:53 PM »
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I made some runs in 3rd gear. If i understand correctly at the end i run out of fuel due to injector being over 100%
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nyet
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« Reply #5 on: December 04, 2019, 03:04:57 PM »
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You need to pull boost significantly.
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K92
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« Reply #6 on: December 05, 2019, 12:11:09 PM »
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You need to pull boost significantly.
Made some adjustments to LDRXN but its seems that i need alot more. Would like some opinions on Afr. Is it ok that line is zig-zag ? I have seen some of the logs where they are quite even. |
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prj
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« Reply #7 on: December 05, 2019, 12:45:56 PM »
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AFR is zigzag, because it's running in BTS and probably knocking.
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nyet
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« Reply #8 on: December 05, 2019, 05:05:55 PM »
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AFR is zigzag, because it's running in BTS and probably knocking.
He really needs to log timing and EGTs |
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K92
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« Reply #9 on: December 10, 2019, 11:45:06 AM »
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Made changes to Lamfa to smoothen it out. Lowered boost considerably. Set TAGBTS to 999.
Made new runs . Wanted to add, that i do not have VVT right now nor it is coded out. Can it interfere in some way or only codes? I am not familar with timing so good, what should i log ?
Comments are welcome on last log.
Thank You
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nyet
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« Reply #10 on: December 10, 2019, 11:48:54 AM »
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1) You're going to have a tough time tuning timing if you dont log load
2) Log PID variables to diagnose the overboost on ramp.
3) You don't appear to have any knock, you can significantly improve timing
4) You're no longer running out of injector up top, that redline boost looks fine
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fknbrkn
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mk4 1.8T AUM
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« Reply #11 on: December 10, 2019, 12:24:05 PM »
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Vvt should be coded out due to fuel trims doesn't work in that condition
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prj
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« Reply #12 on: December 10, 2019, 12:34:36 PM »
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Unless it's on race gas IMO it's too lean.
Killing BTS = killing protection against bad fuel.
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K92
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« Reply #13 on: December 10, 2019, 12:51:07 PM »
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I use 98 octane ONLY
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nyet
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« Reply #14 on: December 10, 2019, 01:04:14 PM »
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I use 98 octane ONLY
until you get a bad batch  |
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