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GTI6r
09-05-2017, 04:55 PM
Hi guys,

I have a stage 2 polo gti 6r. My specs are;
stage 2 software
dsg software
bmc air filter (http://www.ebay.com/sch/i.html?_nkw=air+filter)
70 downpipe and 63 varex
forge dv(blue spring) and wg (yellow spring)
wagner intercooler.

I cleaned up the dv and slush the dv and then change the spark plugs (http://www.ebay.com/sch/i.html?_nkw=spark+plugs) ( bkr7eix)

As i wrote i have actual pressure value if anyone could help me i would be so glad.


Before wg adjustment;

http://i.hizliresim.com/ldP8zE.jpg

http://i.hizliresim.com/nR9aGR.jpg

http://i.hizliresim.com/1La3nG.jpg

After wg adjustment;

https://i.hizliresim.com/j87qzn.jpg

https://i.hizliresim.com/2r0Ovj.jpg

How should i solve the problem? Someone said me change your dv's spring with the new one?

Crasher
09-05-2017, 09:18 PM
Get rid of the DV.

GTI6r
14-05-2017, 03:36 PM
Get rid of the DV.

I cant actually buy a new one (forge dv).

I have changed my spring of the dv and then took logs again; nothing changed.

https://i.hizliresim.com/Np7yqO.jpg

https://i.hizliresim.com/7q4O8v.jpg

and i got two faults, should i change the n249 valve or what? Thanks.

https://i.hizliresim.com/gqBN4R.jpg

https://i.hizliresim.com/9QO693.jpg

Crasher
15-05-2017, 10:38 AM
Change the DV back to standard. This is a CAVE engine? Who's software are you running?

GTI6r
15-05-2017, 05:42 PM
Change the DV back to standard. This is a CAVE engine? Who's software are you running?

This is the CTH engine. I am not sure that have you ever heard the firm but this is EcuFast. When i just bought my car from a friend, I had another software before ( Pschiptuning - 1.8 bar limited ) and i changed the software(ecufast - 1.5 bar limited). Im wondering that if i back to standard DV my car can work stable with 1.5 bar limited?

Crasher
15-05-2017, 06:11 PM
The CTHE is the same as the CAVE, the only difference is the ECU map. You don't need a different diverter valve to handle a little more boost, aftermarket diverter valves cause so much trouble it's daft and these twin charger engines are temperamental things. We did a head rebuild on one in a Golf 5 GT last week, totally worn out exhaust valve guides at 70K miles! These downsized high boosted petrol engines are a nightmare waiting in the wings. Even VW have had to say lets stop this, no more.

GTI6r
15-05-2017, 07:23 PM
The CTHE is the same as the CAVE, the only difference is the ECU map. You don't need a different diverter valve to handle a little more boost, aftermarket diverter valves cause so much trouble it's daft and these twin charger engines are temperamental things. We did a head rebuild on one in a Golf 5 GT last week, totally worn out exhaust valve guides at 70K miles! These downsized high boosted petrol engines are a nightmare waiting in the wings. Even VW have had to say lets stop this, no more.

Yeah, i knew the difference. I asked my friend and he said me "i bought the dv and wg from second hand and i gave the standard dv to you as well" so i ll put in the standard dv and then take log again, if actual pressure values would be normal should i go on by standard dv? Btw, my car is at 25k miles. You are completely right or maybe i should drive and be happy with the actual pressure problem :o

Crasher
15-05-2017, 09:59 PM
There is nothing wrong with extra power, it would be good to find out why it is unstable.

GTI6r
16-05-2017, 09:13 AM
There is nothing wrong with extra power, it would be good to find out why it is unstable.

Thank you so much for your help if i find out the problem i ll let you know.

GTI6r
20-05-2017, 07:44 PM
There is nothing wrong with extra power, it would be good to find out why it is unstable.

Hi again, i changed n75 valve and then log again; I think my acceleration was faster than before but the logs doesnt say samething :confused:


OR CHECK here;
first log (3th - 4th gear)

https://i.hizliresim.com/DPNmWv.jpg

https://i.hizliresim.com/m3Ypg0.jpg

second log (3-4-5th gear)

https://i.hizliresim.com/EgaNWZ.jpg

https://i.hizliresim.com/j8kprm.jpg

First log;
log11.csv - Google Drive (https://drive.google.com/open?id=0B9qRVIsiqsqpVlhkZFlkNGhreWs)

Second log;

loog22.csv - Google Drive
(https://drive.google.com/open?id=0B9qRVIsiqsqpMWFqQl9sT1hwR2M)