S4 B5 Trackday car fine tuning Help

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tkla

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	S4 B5 Trackday car fine tuning Help « on: February 13, 2025, 05:51:40 PM »

Hello, my project car is an Audi S4 B5 2001.5 stage 3
I did an upgrade to 1000 CC Bosch 0280158117 injectors and now I am not achieving the requested boost. This car is a trackday car, so I removed almost everything for the car.
I pulled a couple 2nd gear logs due to traffic, however it reflects the same behavior as in 3rd gear.

IMPORTANT MODS (The car has more ask if you need something else please)
M BOX
EV14 BOSCH 1000 CC INJECTORS
RS4 MAF HOUSING (Hitachi)
ALTTITUDE 2400 METERS ABOVE SEA LEVEL
WEATHER 25 CELSIUS.
AEM WMI
PUMP GAS 91 OCTANES.
RS6 K04-25 TURBOS.
ABD MODULE REMOVED. VCDS Soft coded
N80 REMOVED However N80 wiring DTC is present.
OE Engine

Attached find logs and current Map if you could help me I will appreciate it a lot


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nyet

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	Re: S4 B5 Trackday car fine tuning Help « Reply #1 on: February 13, 2025, 05:56:47 PM »

log all PID variables.

If i had to guess, your WG's are set too soft and you'll have to modify KFLDIMX and/or KFLDRL accordingly. Consult the tuning page.


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ME7.1 tuning guide
ECUx Plot
ME7Sum checksum
Trim heatmap tool

Please do not ask me for tunes. I'm here to help people make their own.

Do not PM me technical questions! 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 ex

prj

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	Re: S4 B5 Trackday car fine tuning Help « Reply #2 on: February 14, 2025, 04:00:35 AM »

Quote from: tkla on February 13, 2025, 05:51:40 PM

RS6 K04-25 TURBOS.
OE Engine

Bent rods in 3... 2... 1...


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PM's will not be answered, so don't even try.
Log your car properly - WinOLS database - Tools/patches

nyet

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	Re: S4 B5 Trackday car fine tuning Help « Reply #3 on: February 14, 2025, 04:05:50 AM »

Quote from: prj on February 14, 2025, 04:00:35 AM

Bent rods in 3... 2... 1...

Not with his wastegates set where they are Wink


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tkla

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	Re: S4 B5 Trackday car fine tuning Help « Reply #4 on: February 14, 2025, 03:31:14 PM »

Thank you for your quick response!
I did a slight mod in KFLDIMX and/or KFLDRL.
Here is a log with PID variables, if there is something more to log let me know.


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tkla

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	Re: S4 B5 Trackday car fine tuning Help « Reply #5 on: February 14, 2025, 03:34:48 PM »

In Action


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nyet

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	Re: S4 B5 Trackday car fine tuning Help « Reply #6 on: February 14, 2025, 04:00:09 PM »

100% wgdc and 13psi isn't so hot.

something very wrong with your setup.

bad n75, wg not adjusted etc.

hopefully not a boost leak.


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