STD Tuning Engine evry mod - no constant boost at low rpm

evry mod - no constant boost at low rpm

evry mod - no constant boost at low rpm

 
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Repetitio
GT2256V

137
08-22-2015, 02:53 AM #1
Hi, just did the evry and installed a boost gauge. At lower RPM the gauge shows that boost is not Constant and i can also hear the turbo not spooling up in a line...hope you understand. Without evry everything is good. Also boost is lower when evry is in....is that normal is there a fault?
Repetitio
08-22-2015, 02:53 AM #1

Hi, just did the evry and installed a boost gauge. At lower RPM the gauge shows that boost is not Constant and i can also hear the turbo not spooling up in a line...hope you understand. Without evry everything is good. Also boost is lower when evry is in....is that normal is there a fault?

m1tch
GT2559V

199
08-22-2015, 03:59 AM #2
What engine is it? Perhaps the EVRY mod is messing with the ECU/vacuum transducer which controls the turbo if its on an E300 with the OM606.962 engine.
m1tch
08-22-2015, 03:59 AM #2

What engine is it? Perhaps the EVRY mod is messing with the ECU/vacuum transducer which controls the turbo if its on an E300 with the OM606.962 engine.

Repetitio
GT2256V

137
08-22-2015, 05:04 AM #3
Its a c250 Turbodiesel w202.
Repetitio
08-22-2015, 05:04 AM #3

Its a c250 Turbodiesel w202.

Booster
GT2559V

240
08-23-2015, 03:26 AM #4
(08-22-2015, 05:04 AM)Repetitio Its a c250 Turbodiesel w202.

Post some pictures of how you did this mod, I don't have such problems on mine.
Booster
08-23-2015, 03:26 AM #4

(08-22-2015, 05:04 AM)Repetitio Its a c250 Turbodiesel w202.

Post some pictures of how you did this mod, I don't have such problems on mine.

Repetitio
GT2256V

137
08-23-2015, 10:34 AM #5
you also do not have the stock turbo running in your car right? I will make a picture tomorrow and post it.
Repetitio
08-23-2015, 10:34 AM #5

you also do not have the stock turbo running in your car right? I will make a picture tomorrow and post it.

Booster
GT2559V

240
08-23-2015, 12:35 PM #6
(08-23-2015, 10:34 AM)Repetitio you also do not have the stock turbo running in your car right? I will make a picture tomorrow and post it.

Yes, your correct but your turbo is vac controlled so it shouldn't mess with it??

I have no wastegate and there is no flutter etc
Booster
08-23-2015, 12:35 PM #6

(08-23-2015, 10:34 AM)Repetitio you also do not have the stock turbo running in your car right? I will make a picture tomorrow and post it.

Yes, your correct but your turbo is vac controlled so it shouldn't mess with it??

I have no wastegate and there is no flutter etc

Repetitio
GT2256V

137
08-24-2015, 12:38 PM #7
i checked my solderings again...everything is fine, i think it has something to do with the boost control...The car builds preasurre to 1,5bar, then stops, goes down to like 1 bar, and goes up again. Until i reach like 3,5k rpm, then its constantly at 1,1 bar or something like that. is there a way to trick the ecu?
Anybody else with a stock c250 turbodiesel only with evry having not the problem?
Repetitio
08-24-2015, 12:38 PM #7

i checked my solderings again...everything is fine, i think it has something to do with the boost control...The car builds preasurre to 1,5bar, then stops, goes down to like 1 bar, and goes up again. Until i reach like 3,5k rpm, then its constantly at 1,1 bar or something like that. is there a way to trick the ecu?
Anybody else with a stock c250 turbodiesel only with evry having not the problem?

Volker407
naturally aspirated

157
08-24-2015, 02:46 PM #8
(08-24-2015, 12:38 PM)Repetitio i checked my solderings again...everything is fine, i think it has something to do with the boost control...The car builds preasurre to 1,5bar, then stops, goes down to like 1 bar, and goes up again. Until i reach like 3,5k rpm, then its constantly at 1,1 bar or something like that. is there a way to trick the ecu?
Anybody else with a stock c250 turbodiesel only with evry having not the problem?

My brothers 250TD (completely stock) does the same "pressure change thing" at lower turbo pressure levels, so that seems to be  normal.

At full throttle a jump to 1,1bar, then down to 0,7bar and then leveling at 0,9bar

Gruß
Volker
Volker407
08-24-2015, 02:46 PM #8

(08-24-2015, 12:38 PM)Repetitio i checked my solderings again...everything is fine, i think it has something to do with the boost control...The car builds preasurre to 1,5bar, then stops, goes down to like 1 bar, and goes up again. Until i reach like 3,5k rpm, then its constantly at 1,1 bar or something like that. is there a way to trick the ecu?
Anybody else with a stock c250 turbodiesel only with evry having not the problem?

My brothers 250TD (completely stock) does the same "pressure change thing" at lower turbo pressure levels, so that seems to be  normal.

At full throttle a jump to 1,1bar, then down to 0,7bar and then leveling at 0,9bar

Gruß
Volker

Repetitio
GT2256V

137
08-24-2015, 02:59 PM #9
yea...would be nice if it would stay at 1,1 bar Smile thanks a lot volker for the info, now i know that there is nothing wrong with my car!
Repetitio
08-24-2015, 02:59 PM #9

yea...would be nice if it would stay at 1,1 bar Smile thanks a lot volker for the info, now i know that there is nothing wrong with my car!

Hario'
C300TD Wagon (W202)

894
08-28-2015, 10:36 AM #10
Mine too. ECU lowers boost at constant throttle (cruise), saves fuel!




Installed:

OM606/722.6, big IC, W220 brakes.
Planned:
DIY manifold, compound, 722.6 controller, built IP.
[i]Less rust.. 
[/i]
Hario'
08-28-2015, 10:36 AM #10

Mine too. ECU lowers boost at constant throttle (cruise), saves fuel!





Installed:

OM606/722.6, big IC, W220 brakes.
Planned:
DIY manifold, compound, 722.6 controller, built IP.
[i]Less rust.. 
[/i]

Repetitio
GT2256V

137
09-01-2015, 03:07 PM #11
ok so it seems like some poeple have this problem...anybody got an idea how to solve this? i would like to get constant 1,5 bar or something like that.
If I connect the vacuum line directly to the actuator the turbo builds up more than 2 bar. Thats too much. Could this be reduced by something like a boost controller? like this: http://www.ebay.de/itm/Boost-Controller-...5679b0e628
Or anybody got another idea how to control my wastegate the easyest way?
Repetitio
09-01-2015, 03:07 PM #11

ok so it seems like some poeple have this problem...anybody got an idea how to solve this? i would like to get constant 1,5 bar or something like that.
If I connect the vacuum line directly to the actuator the turbo builds up more than 2 bar. Thats too much. Could this be reduced by something like a boost controller? like this: http://www.ebay.de/itm/Boost-Controller-...5679b0e628
Or anybody got another idea how to control my wastegate the easyest way?

starynovy
Holset

338
09-02-2015, 11:30 AM #12
Yes you could set pressure with that valve by leaking vaccum from actuator but I dont think you get full bottom end performance. Your wastegate will still have to by slightly open and that affects spool up. Simply said no, you would need to fit some pressure operated wastegate turbo to get steady boost and good spool.

-------------------------------------------------------------------------------------------------------------------------
Ex: 525tds 130kW, C250TD 160kW, E320CDI 200kW, ML400CDI 230kW, A6 R5TDI 130kW
Now: Q7 V8TDI 240kW, 320d 150kW, 335d 210kW
starynovy
09-02-2015, 11:30 AM #12

Yes you could set pressure with that valve by leaking vaccum from actuator but I dont think you get full bottom end performance. Your wastegate will still have to by slightly open and that affects spool up. Simply said no, you would need to fit some pressure operated wastegate turbo to get steady boost and good spool.


-------------------------------------------------------------------------------------------------------------------------
Ex: 525tds 130kW, C250TD 160kW, E320CDI 200kW, ML400CDI 230kW, A6 R5TDI 130kW
Now: Q7 V8TDI 240kW, 320d 150kW, 335d 210kW

Repetitio
GT2256V

137
09-03-2015, 01:56 PM #13
Thanks you man, thats exactly what i wanted to know Smile
Repetitio
09-03-2015, 01:56 PM #13

Thanks you man, thats exactly what i wanted to know Smile

 
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