Question about engine power

Hello everyone...

Yesterday, I took a look at my engine data and also wrote it down in a log file.

Then, at home, I checked everything using the product catalog (demo version) from the shop and came to a result that couldn't be correct.
103 kW and 313 Nm!

How can that be?

I have added it to the log file.

However, a lot of information is missing , such as weight, temperature, fuel weight, etc., etc., etc.

Furthermore, the log is relatively short, and a measurement in 4th gear would be more informative .

And only log data from 2 measurement points, e.g., 5 and 6, otherwise the sampling rate will become even smaller...

Okay, so I did the whole thing again yesterday...

And yet another similar result.

http://www.sgaf.de/album_mod/upload/567ebcc9d8f8c8c0fee96849ec9c3776.jpg



'Shift from idle speed to the rev limiter, then release the throttle back to idle...'
Eg: 1680 kg
1 person: 75 kg.
Fuel: 20 liters.
Air pressure: 980 millibars.

Result: Over 110 kW and 350 Nm.

'For the fourth gear, I first need to find a stretch of road that's long enough.'

'I also worked on a Passat 3BG yesterday, and it also has more power than stated. It's producing 107 kW and 294 Nm of torque (it's the 100 hp PD engine).'

My friend said that the program is quite accurate, and that his VW bus with a chip reaches 140 horsepower (the standard version has 102 hp, but with a chip it goes up to 140).

I'll try to do it in fourth gear.

Best regards,
Michael.

Hello,

You are fundamentally doing something wrong during the data acquisition process. Please press the F1 key in KPower and read everything carefully again.
Anyone who logs three measurement blocks simultaneously probably doesn't understand what's important.
And please weigh the car properly, logically (although it's actually unnecessary to say), and make sure it's in exactly the same condition as when the measurements were taken.

Best regards, Rainer.

Rainer K. wrote:

irgendwas macht ihr bei der Meßwertaufnahme grundlegend falsch.

I'm tapping

mhernach wrote:

... all the way until it hits the rev limiter, then release the gas completely until it idles...

Guys, you also need to depress the clutch when coasting! Otherwise, you'll see the internal losses of the engine as an addition to the engine power in the diagram.

irgendwas macht ihr bei der Meßwertaufnahme grundlegend falsch.
I'm tapping ... all the way until it hits the rev limiter, then release the gas completely until it idles... Guys, you also need to depress the clutch when coasting! Otherwise, you'll see the internal losses of the engine as an addition to the engine power in the diagram.

now I finally managed it... Thanks for the hint, F1 *


It was the clutch.

I had measurement block numbers 1 and 6. That should be correct, though...?

Since I couldn't go for a test drive yet, I took the delay settings from the Audi. They probably won't be perfectly accurate, but the values should definitely be better.

I'm now consistently getting lower numbers. Only 93 kW and 300 Nm now.

Tonight, I'm going to do it properly this time, and I'm excited to see how it turns out.

Best regards,
Michael.

Okay, I've got it now.

http://www.sgaf.de/album_mod/upload/d2f11f303121eec426f79f773ade0c8f.jpg

This is the performance that the program calculated, including all entries such as weight, air pressure, temperature, etc.

Can this be right?

Hi,

What exactly was done to the engine? With injectors of size 0.205 and adjusted software, you can at least achieve that level of performance.

Tip: You can leave the air pressure and temperature at their default values. If you change them, the performance will be corrected according to DIN standards.
The catch is that the DIN correction factor is actually only really useful for gasoline engines without turbocharging.
The performance of your TDI engine will change only slightly, regardless of air pressure and temperature, as long as the intercooler temperature limiter or the altitude protection for the turbocharger are not activated. However, if either of these systems is engaged (which is unlikely in your measurement), it will affect the performance differently than the DIN correction factor.

Best regards, Rainer.

Hi,

What exactly was done to the engine? With injectors of size 0.205 and adjusted software, you can at least achieve that level of performance.


I have the injectors from the AFN engine installed, and a tuning module, oh yeah, and the EGR valve is sealing properly.



Tip: You can leave the air pressure and temperature at their default values. If you change them, the performance will be corrected according to DIN standards.
The catch is that the DIN correction factor is actually only really useful for gasoline engines without turbocharging.
The performance of your TDI engine will change only slightly, regardless of air pressure and temperature, as long as the intercooler temperature limiter or the turbocharger altitude protection system are not activated. However, if either of these systems is engaged (which is unlikely in your measurement), then the performance will be affected differently than what the DIN correction factor would indicate.

Greetings, Rainer.

I can hardly believe it, but I actually achieved this performance. After disabling the 'chip,' I reached 74 kW and 240 Nm of torque.

My only problem is that it produces a lot of black smoke, and my clutch slips the most in fourth gear.

http://www.sgaf.de/album_mod/upload/3d123c5ffb6153f5b687a98f200ec522.jpg