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      01-31-2020, 07:04 AM   #1
AustraliaG20
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Australia
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Drives: 2019 G20 330i. 2015 F15 M50D.
Join Date: Jul 2019
Location: Canberra

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TDI Tuning CRTD4 dyno results

Hi all,

I have had this installed in my car for a couple of months now (TDI Tuning CRTD4). I managed to get a couple of dyno runs at completely stock, their Mode 1 (low power) and Mode 7 (high power). This is their datasheet outlining their results.

So, what the advertised amount for kW (at the engine) is:
Stock: 190kW
Mode 1: 219kW
Mode 7: 234kW

How did I actually go? First a few disclaimers.

1. It was the WORST conditions to do dyno runs. The ambient temperature outside of the shop was 43.5 deg C (110 deg F). Inside the shop, the car was register 47.5 deg C (117 deg F) during the runs. The dyno temp was measuring around 38deg C for corrections.
View post on imgur.com

2. The air is horrible.. we have significant bush fires in the area (State of Emergency etc) and the air pollution is also significant.
3. We tried to allow the car to cool between runs (as much as possible), fans etc. But there is only so much. The conversion factor is outlined on the results.
4. Air intake temp was relatively consistent on the runs at around 66 deg C (150 deg F). Ie. Hot.
5. 600m above sea level. So air pressure isn't great either.
6. It is a Mainline dyno - generally considered to read lower than others. It says kPa for manifold pressure on the printout, but it's psi.
7. 98RON fuel.
8. Runs were in 6th gear, up to 240km/hr (on the dyno). The dash went past 260km - clearly not overly accurate!

Because of the above, I'm not actually interested in the overall power rating, but more the percentage increase over the run and other settings. Timing, AFR, Boost, etc to just get a feel for what the re-map is doing, if it's 'safe' and if it comes anywhere near the advertised figures.

So the results... see the print outs (there was at least 2, if not 3-5 runs at each setup)
View post on imgur.com
.

Short version.

Stock: Advertised 190kW (at the engine) : Dyno ATW 179kW
Mode 1: Advertised 219kW (at the engine) : Dyno ATW 178kW
Mode 7: Advertised 234kW (at the engine) : Dyno ATW 186kW

Definitely looking for some comments. However, what is interesting for me:

1. The numbers are way off for max power. The increase isn't even close to 23% as advertised for Mode 7, it's closer to 4%.
2. Mode 1 was almost exactly the same as stock. There was almost no difference in anything that we could measure.
3. In Mode 7, the power curve is noticably better. The boost pressure comes on earlier, and that is felt in the car. That's nice to see.
4. The boost pressure isn't changed at all.
5. The AFR reads richer, with the same boost pressure, but makes more power in Mode 7. Not sure how that works?
6. Did the high temperature just override a lot of the settings? If I get the time, I may take it for a run in winter when the temperature is more pleasant.
7. In the end, I'll leave it on Mode 7 and for the improved power band I'll take it. I was never expecting miracles, and the fact it is easy to attach and remove, and is undetectable at servicing it is quite handy.

Anyway - comments?

Last edited by AustraliaG20; 01-31-2020 at 07:10 AM..
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