Thomas Pirowski's tuning academy — 30+ years in ECU calibration & reverse engineering. Courses for Diesel, Gasoline, and Ghidra TriCore.
Free monthly Q&A with Thomas. Engineering through physics, not button-pushing. academy.thomasteachestuning.com WinOls trainings, chip tuning trainings, specialized trainings for tuners: trucks, lkw, pkw, agriculture machines, tractors, jetski, atv
12/05/2026
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Can You Make Money with Chip Tuning? Tools, Costs and the Brutal Truth Can you really make money with chip tuning? Is it still a good business idea, or is the market already full of tuners?In this episode, I talk openly about wh...
More power doesn’t automatically mean higher fuel consumption.
With proper calibration and optimized engine efficiency, a tuned engine can produce more torque and power while operating more effectively under load.
The real question is not just how much power, but how efficiently the engine produces it.
📚 Q&A Library — every Tuners Guild Q&A with Thomas, free inside your TTT account
How it works:
→ Past Q&A recordings — on demand. Q&A #1 (April 2026, 13 questions in 63 minutes covering Bosch EDC17, Delphi DCM, DENSO) is live. Each new session gets added after recording.
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Next live Q&A: May 19, 12:00 CEST. Open to everyone.
👉 https://academy.thomasteachestuning.com/course/open-qa-library?utm_source=facebook&utm_medium=social&utm_campaign=pinned-ttt&utm_content=qa-library-en
Got a question Thomas should answer live? Drop it in comments here or post in our Knowledge Base on community.tunersguild.com — that's how the Q&A backlog gets built.
Tuners say 5-10% AirDesire for Stage 1. Thomas says 2-3% max — and here's why.
One of the questions from our first live Q&A in Tuners Guild — Marek asked about EDC17C74 AirDesire scaling for Stage 1. He'd seen "5-10%" in tuning communities and wanted to know where 3.5% fits.
The trap: that 5-10% range is a Euro 5 habit. Euro 6 changes the math. EDC17C74 already runs 19:1 AFR at critical load by emissions design. Even if you add 21% fuel, the mixture stays at 16.5:1 — comfortably lean. The air headroom you think you have isn't there.
Push AirDesire (DAMOS folder AirCtl_DesValCalc, base map AirCtl_mDesBas) past 2-3% and combustion efficiency starts dropping — you lose power, not gain it.
Full breakdown with the AFR math, the Euro 5 → Euro 6 baseline shift, and the symbolic-edit rule:
👉 https://community.tunersguild.com/t/how-much-should-i-adjust-airdesire-on-edc17c74-for-stage-1/95
Free to read. From Thomas's Q&A #1 in Tuners Guild.
Driver wish isn't the map that killed your start. The 8-bit shadow next to it is.
Quick one from our first live Q&A — Dmitri made minimal changes to driver wish on an EDC17C46. Engine wouldn't crank the next time he turned the key.
The trap: many EDC17 variants pair driver wish with a hidden 8-bit monitoring copy in folder MoFDrDem_Co (MoFDrDem_rTrqEng), saturated at 255 on purpose. At key-on the ECU cross-checks both. If the delta exceeds the safety threshold (Thomas's rule: keep it under 10%, 5–7% is the zone), a torque monitoring error fires before crank — and that's what gates ignition.
And there's a second layer in MoFLos_Co (16-bit trqEngLos + 8-bit rTrqEngLos) that bites differently — limp mode while you drive, not no-start.
Both layers vary bin-to-bin. No fixed recipe. Survey first, scale together.
Full breakdown with WinOLS screenshots, the saturated-255 pattern explained, and the fix workflow:
👉
24/03/2026
New English YT channel. Soon active with lessons of chiptuning in WinOls and Ghidra
https://www.youtube.com/
24/03/2026
Do you want to learn about chip tuning and Ghidra, rather than just copying other people’s files?
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05/01/2026
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