Wer bietet die höchsten LD-Überschwinger? ZKD-Gefahr? | Posts 16+

Devilseye503 wrote:

@ulf - just checked it out in the latest etos

Ah, and what are the VAG part numbers for the ZK screws there?

According to the file:
ARL = 038 103 384 C
the remainder = 038 103 384

Hello Ulf.

Regarding your initial question:

AFN, original screws, original turbocharger, 1.5 bar peak boost, approximately 1.4 bar holding pressure. I hadn't noticed any wasp nests under the hood until I reached the rev limit.

Hi!

@ulf - just checked the latest etos
Ah, and what are the VAG part numbers for the ZK screws there?

According to the file:
ARL = 038 103 384 C
the remainder = 038 103 384
Okay, I checked the Leon, and it only has the newer PD engines. The part number 038 103 384 C corresponds to the ARL or ASZ engine code.

Devilseye503 wrote:

So, I looked at the Leon - it only has the newer PD engines - and there, 038 103 384 C = ARL = ASZ

.
Hmm, that's funny... could this just be a simple typo?
Who actually runs etos, and where does the data come from?

"I think VAG (Volkswagen Group) must have had a reason for equipping the newer, more powerful 1.9 TDI engines (110 kW in the Alhambra, 118 kW in the Ibiza) with the same screws as all the other PD engines, according to the documentation..."
Keywords: Delay in tightening screws, etc., caused by the block and ZK (presumably referring to specific components or systems).

It remains puzzling why the ARL, with the same block and ZK (presumably referring to specific components or designations) as the ASZ on the G4 platform, continues to use the older screws with higher strength.

According to ETOS, both BPX, ASZ, and ATD have returned to using the versions without the 'c' suffix.
What does the documentation say about the ARL and ASZ in the Leon?
'Regarding the BXP, I could understand the issue with the screws, as the engine has a completely different power curve compared to the ARL – and it might also have ATL (which could mean it doesn't allow for such high over-revving).'

Devilseye503 wrote:

What does the documentation say about the ARL and ASZ in the Leon?

*Eye rubbing* The same as you: both will receive the C-screws .
Then I checked again with the G4, same year of manufacture: ARL -> C, ASZ -> the standard screws...
It seems that, according to the records, Leon is the only one who is getting the "tough" assignments at the ASZ.

Quote:

Regarding the bpx, I could understand the issue with the screws because the engine has a completely different power curve compared to the arl - and also ATL (possibly it doesn't allow for such high over-revving)

The BPX software tends to allow even higher overshoot values than the ARL software (I've tried it myself)!
Very mysterious, this whole screw story...

Hello Ulf,


It would be interesting to know how your turbocharger's boost pressure behaves at full load and within the speed range of 170-200 km/h, either on a straight road or slightly uphill.

If you ever do a logging session like that, it would also be very interesting to log the duty cycle of the N75.
I believe that even your engine/turbocharger will exhibit noticeable and consistent overboosts during a logging session like that.


Cheers.
Sunny01