[TDIwyse]

Originally Posted by DWR

OK, I can confirm that the ECU maps that I provided are for an E60 535d. The engine is a 215Hp version of our engine, still using the same turbos. Can also confirm that a stock compressor bypass for a 335d comes on sooner (@2800rpm) than the older 535d, seen on the maps. Makes sense as the HP turbo will be "done" sooner, as horsepower increases.

Thanks. So does it appear Bav Tech from post #104 was accurately capturing that behavior?

[DWR]

Originally Posted by TDIwyse

Thanks. So does it appear Bav Tech from post #104 was accurately capturing that behavior?

Well, the compressor bypass is not supposed to be pulsewidth modulated. I've not seen a response like that in a stock setup. I'm wondering if that isn't the turbine bypass. That would explan the response and the early initiation, compared to the compressor bypass. Again, I am postulating on a remapped DDE ... I could be way off.

[iaknown]

Both of you should be able to pull it up on Test-O now and do a log

I believe you are looking for the following parameter: CByVlv_st / Kompressorbypassventil

And possibly: STAT_TrbCh_r_WERT

[DWR]

Originally Posted by iaknown

I believe you are looking for the following parameter: CByVlv_st / Kompressorbypassventil

And possibly: STAT_TrbCh_r_WERT

OK, I can translate "Kompressorbypassventil". Took German in high school.
But what language is " STAT_TrbCh_r_WERT"!?

[TDIwyse]

Originally Posted by iaknown

Both of you should be able to pull it up on Test-O now and do a log

I believe you are looking for the following parameter: CByVlv_st / Kompressorbypassventil

And possibly: STAT_TrbCh_r_WERT

Thanks to you and some others help on getting Test-O up and going.

Real data from TestO on the DDE "desired" and then "measured" boost with the EWG has finally been measured for my present vehicle configuration.

http://www.e90post.com/forums/showpost.php?p=17282814&postcount=42


Also, this was from one of the earlier runs where I had grabbed that parameter. Due to the number of things being logged the data points are a little far apart...

[iaknown]

Originally Posted by TDIwyse

Also, this was from one of the earlier runs where I had grabbed that parameter. Due to the number of things being logged the data points are a little far apart...

How many things were you logging at once to get the resolution so poor?!?!

[TDIwyse]

Originally Posted by iaknown

How many things were you logging at once to get the resolution so poor?!?!

~16 ... was just trying to learn the tool and also get some insight into the various options and what the heck those German terms mean :-)

[35d]

Hi

I have a 35d LCI

Dpf I guuted out and put back with remap for 350 bhp 700nm. I'm tuning stock exhaust just dpf missing from the tin. My problem is turbo making 2.3-2.4 bar boost but it's set at 2.0 in the map. At high speeds it goes into limp mode

Please see my thread with graphs in uk technical subforum

Is my wastegate not letting enough gas out so turbo over spinning ?

Thanks

[TDIwyse]

Originally Posted by 35d

Is my wastegate not letting enough gas out so turbo over spinning ?

My 2 cents.

Most likely, based on what has been measured/discussed by multiple people in this and the SCR mod thread, as well as looking at your data.

You could try forcing the internal wastegate of the big turbo into the "open" position and seeing if that helps the overboost issue... but the one person I'm aware of with an open exhaust and remap who tried this said it didn't help.

You'll likely have to add back flow restriction into the exhaust, port the internal wastegate opening so it can flow more, add an external wastegate, remap the car to less power, have your tuner pull the limp mode protection (seems that's what happened with some of us who got the dpf delete and remap ... but that's not good for the health of your turbo), or drive less aggressively...

Good luck.

[TDIwyse]

Decided to permanently mount the analog boost gauge, due to concerns on the accuracy of the electronic methods I've tried, and not being pleased with the results.

Also, I find the H2O/methanol gauge to be critical as over the last 3 years it's helped tell me on 2 occasions to immediately notice a fault in the tubing/connections (also have a little red LED by that guage that gives the "low" fluid warning).

So I wanted a dual gauge setup. I really liked the ATI dual pod e90 setup, but due to having the paddle shifters there's a clearance issue with this... But I came across a good deal on them and took a chance.

Good news is it's possible to modify the OEM steering column cover to accept the "pods", AND position them further back to avoid the paddle shifters so there's no interference.

[iaknown]

Originally Posted by TDIwyse

Decided to permanently mount the analog boost gauge, due to concerns on the accuracy of the electronic methods I've tried, and not being pleased with the results.

Also, I find the H2O/methanol gauge to be critical as over the last 3 years it's helped tell me on 2 occasions to immediately notice a fault in the tubing/connections (also have a little red LED by that guage that gives the "low" fluid warning).

So I wanted a dual gauge setup. I really liked the ATI dual pod e90 setup, but due to having the paddle shifters there's a clearance issue with this... But I came across a good deal on them and took a chance.

Good news is it's possible to modify the OEM steering column cover to accept the "pods", AND position them further back to avoid the paddle shifters so there's no interference.

Looks purdy.....

[Mik325tds]

Originally Posted by TDIwyse

Good news is it's possible to modify the OEM steering column cover to accept the "pods", AND position them further back to avoid the paddle shifters so there's no interference.

Very nice looking! Make sure you seal the modified steering column cover well. The optical steering angle sensor does not like dust.

[TDIwyse]

Originally Posted by Mik325tds

... Make sure you seal the modified steering column cover well. The optical steering angle sensor does not like dust.

Good grief, I wasn't even aware of that possibility. Will look into that. The modification is basically 4 holes to accept bolts and they're very tight, and the covered is sealed tight. But I wasn't taking any precautions during the fussing around of moving the wiring/boost tubing/checking fit/etc...

Thanks for the heads up.

[Mik325tds]

I wouldn't worry too much. The steering angle sensor is enclosed in an extra housing within the steering column shroud. I'm assuming you took the shroud off before you drilled the holes, correct? So if you haven't drilled into the SAS housing there should be no problem since your holes are now filled with screws. If you do need new parts there, let me know. I might be able to help you out.

[TDIwyse]

Originally Posted by Mik325tds

...I'm assuming you took the shroud off before you drilled the holes, correct? So if you haven't drilled into the SAS housing there should be no problem since your holes are now filled with screws. If you do need new parts there, let me know. I might be able to help you out.

Yup, had the shroud off. And thanks for the offer.

[35d]

Anyone else have any opinions

Tdi wise I agree with you. When I put my serial map on there was still overboost but little less then with remap.

Originally Posted by TDIwyse

My 2 cents.

Most likely, based on what has been measured/discussed by multiple people in this and the SCR mod thread, as well as looking at your data.

You could try forcing the internal wastegate of the big turbo into the "open" position and seeing if that helps the overboost issue... but the one person I'm aware of with an open exhaust and remap who tried this said it didn't help.

You'll likely have to add back flow restriction into the exhaust, port the internal wastegate opening so it can flow more, add an external wastegate, remap the car to less power, have your tuner pull the limp mode protection (seems that's what happened with some of us who got the dpf delete and remap ... but that's not good for the health of your turbo), or drive less aggressively...

Good luck.

[35d]

So how is the ecotune software not have overspool issue. Those guys who run it works fine with no dpf or cat

Ecotune say they adjust the vnt and boost maps to compensate the reduced back pressure

[TorqueAddict]

Originally Posted by 35d

So how is the ecotune software not have overspool issue. Those guys who run it works fine with no dpf or cat

Ecotune say they adjust the vnt and boost maps to compensate the reduced back pressure

Ecotune map does have the overboost issue. TDi confirmed it.

[iaknown]

Originally Posted by 35d

So how is the ecotune software not have overspool issue. Those guys who run it works fine with no dpf or cat

Ecotune say they adjust the vnt and boost maps to compensate the reduced back pressure

Ecotune can adjust all the maps they want. And code out the overboost warnings. Doesn't change the fact that the wastegate can't flow enough to keep the turbos from failing over time....

[iaknown]

Originally Posted by 35d

So how is the ecotune software not have overspool issue. Those guys who run it works fine with no dpf or cat

Ecotune say they adjust the vnt and boost maps to compensate the reduced back pressure

By the way, what program did you use to graph your boost? Saw your thread in the UK section.....

[35d]

Originally Posted by iaknown

By the way, what program did you use to graph your boost? Saw your thread in the UK section.....

Hi

Here my thread

http://www.e90post.com/forums/showthread.php?t=1084082

I used testo to log data and make graph in excel. Do you think I have same overboost issue. When I put serial map on then I get same overboost but not as much it gets to 3.3 mbar but no limp mode

Now car making this noise
http://youtu.be/-qUWb7ZUnD0

Is that normal noise or anything related to dpf off?

[Ajs_435d]

I don't seem to have overboost I'm running ecotune remap and dpf delete.

I tune petrols on standalone, of course wg is limiting factor but you can adjust boost tables to effect spool and thus overboost ie manipulating spool, with a 2/3 port boost solenoid you can alter wg duty cycle and error table, however it's a bit of a battle between vicious target boost met or no over spool or sluggish spool, I suspect tables like this exist in the 335d tables.